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Chevallier MA, Fantuzzi E, Hajek M, Mayer S, Tanner R, Thomas DJ, Vanhavere F. Analysis of EURADOS neutron intercomparison results according to new ISO standards criteria. Radiat Prot Dosimetry 2023; 199:1729-1734. [PMID: 37819341 DOI: 10.1093/rpd/ncad003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Revised: 10/04/2022] [Accepted: 12/06/2022] [Indexed: 10/13/2023]
Abstract
The European Radiation Dosimetry Group has carried out several different types of intercomparison (IC) exercises in the past that qualify as proficiency tests for different dosimetry systems and types of radiation. The first neutron dosemeter IC was held in 2012 (IC2012n) and was followed by a second in 2017/2018 (IC2017n). In sum, 31 Individual Monitoring Services (IMSs) entered 34 dosimetry systems in IC2012n, and 32 IMSs entered 33 dosimetry systems for IC2017n. Such exercises provided a rare opportunity to see how neutron dosemeters perform. For the IC2012n exercise, there were no applicable performance standards for neutron personal dosemeters. ISO/TC85/SC2 updated the ISO Standard 14146 in 2018 (ISO 14146:2018. Radiation protection-Criteria and performance limits for the periodic evaluation of dosimetry services) to include neutron dosimetry. It was thus possible to analyse the IC2017n exercise in accordance with the requirements given by this new standard. It is now of interest to reanalyse the results of IC2012n to quantify any modifications to the conclusions.
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Affiliation(s)
- M-A Chevallier
- Dosimetry Research Department, Institut de Radioprotection et de Sûreté Nucléaire, 92260 Fontenay-aux-Roses, France
| | - E Fantuzzi
- Radiation Protection Institute, Italian National Agency for New Technologies, Energy and Sustainable Economic Development (ENEA), 40136 Bologna, Italy
| | - M Hajek
- Division of Radiation, Transport and Waste Safety, International Atomic Energy Agency (IAEA), 1400 Vienna, Austria
| | - S Mayer
- Department of Radiation Safety and Security, Paul Scherrer Institute (PSI), CH-5232 Villigen, Switzerland
| | - R Tanner
- Dosimetry Services Department, UK Health Security Agency (UKHSA), Didcot, Oxon OX11 0RQ, UK
| | - D J Thomas
- Nuclear Metrology Group, National Physical Laboratory (NPL), Teddington TW11 0LW, UK
| | - F Vanhavere
- Radiation Protection Dosimetry and Calibration, SCK-CEN, Belgian Nuclear Research Centre, 2400 Mol, Belgium
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2
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Eakins J, Abdelrahman M, Hager L, Jansen JTM, Kouroukla E, Lombardo P, Tanner R, Vanhavere F, Van Hoey O. Virtual estimation of effective dose in neutron fields. J Radiol Prot 2021; 41:360-383. [PMID: 33784644 DOI: 10.1088/1361-6498/abf3b0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Accepted: 03/30/2021] [Indexed: 06/12/2023]
Abstract
The PODIUM project aims to provide real-time assessments of occupationally exposed workers by tracking their motion and combining this with a simulation of the radiation field. The present work describes the approach that would be taken in mixed neutron-gamma fields, and details the methods for generating and applying an effective dose rate map; the required fluence to effective dose conversion coefficients at intercardinal angles are also presented. A proof-of-concept of the approach is demonstrated using a simple simulated workplace field within a calibration laboratory, with corroborative comparisons made against survey instrument measurements generally confirming good agreement. Simulated tracking of an individual within the facility was performed, recording a 1.25μSv total effective dose and accounting for dose rates as low as 0.5 nSv h-1, which is much lower than anything that could be accurately measured by physical neutron dosemeters in such a field.
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Affiliation(s)
- J Eakins
- Public Health England (PHE) CRCE, Didcot, Oxfordshire, United Kingdom
| | - M Abdelrahman
- Belgian Nuclear Research Centre (SCK CEN), Mol, Belgium
| | - L Hager
- Public Health England (PHE) CRCE, Didcot, Oxfordshire, United Kingdom
| | - J T M Jansen
- Public Health England (PHE) CRCE, Didcot, Oxfordshire, United Kingdom
| | - E Kouroukla
- Public Health England (PHE) CRCE, Didcot, Oxfordshire, United Kingdom
| | - P Lombardo
- Belgian Nuclear Research Centre (SCK CEN), Mol, Belgium
| | - R Tanner
- Public Health England (PHE) CRCE, Didcot, Oxfordshire, United Kingdom
| | - F Vanhavere
- Belgian Nuclear Research Centre (SCK CEN), Mol, Belgium
| | - O Van Hoey
- Belgian Nuclear Research Centre (SCK CEN), Mol, Belgium
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3
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Harrison RM, Ainsbury E, Alves J, Bottollier-Depois JF, Breustedt B, Caresana M, Clairand I, Fantuzzi E, Fattibene P, Gilvin P, Hupe O, Knežević Ž, Lopez MA, Olko P, Olšovcová V, Rabus H, Rühm W, Silari M, Stolarczyk L, Tanner R, Vanhavere F, Vargas A, Woda C. EURADOS STRATEGIC RESEARCH AGENDA 2020: VISION FOR THE DOSIMETRY OF IONISING RADIATION. Radiat Prot Dosimetry 2021; 194:42-56. [PMID: 33989429 PMCID: PMC8165425 DOI: 10.1093/rpd/ncab063] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Revised: 02/28/2021] [Accepted: 04/06/2021] [Indexed: 05/02/2023]
Abstract
Since 2012, the European Radiation Dosimetry Group (EURADOS) has developed its Strategic Research Agenda (SRA), which contributes to the identification of future research needs in radiation dosimetry in Europe. Continued scientific developments in this field necessitate regular updates and, consequently, this paper summarises the latest revision of the SRA, with input regarding the state of the art and vision for the future contributed by EURADOS Working Groups and through a stakeholder workshop. Five visions define key issues in dosimetry research that are considered important over at least the next decade. They include scientific objectives and developments in (i) updated fundamental dose concepts and quantities, (ii) improved radiation risk estimates deduced from epidemiological cohorts, (iii) efficient dose assessment for radiological emergencies, (iv) integrated personalised dosimetry in medical applications and (v) improved radiation protection of workers and the public. This SRA will be used as a guideline for future activities of EURADOS Working Groups but can also be used as guidance for research in radiation dosimetry by the wider community. It will also be used as input for a general European research roadmap for radiation protection, following similar previous contributions to the European Joint Programme for the Integration of Radiation Protection Research, under the Horizon 2020 programme (CONCERT). The full version of the SRA is available as a EURADOS report (www.eurados.org).
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Affiliation(s)
| | - E Ainsbury
- Public Health England, Chilton, Didcot, UK
| | - J Alves
- Instituto Superior Técnico (IST), CTN, Lisboa, Portugal
| | - J-F Bottollier-Depois
- Institut de Radioprotection et de Sûreté Nucléaire (IRSN), Fontenay-aux-Roses Cedex, France
| | - B Breustedt
- Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany
| | | | - I Clairand
- Institut de Radioprotection et de Sûreté Nucléaire (IRSN), Fontenay-aux-Roses Cedex, France
| | - E Fantuzzi
- ENEA - Radiation Protection Institute, Bologna, Italy
| | - P Fattibene
- Istituto Superiore di Sanità (ISS), Rome, Italy
| | - P Gilvin
- Public Health England, Chilton, Didcot, UK
| | - O Hupe
- Physikalisch Technische Bundesanstalt (PTB), Braunschweig and Berlin, Germany
| | - Ž Knežević
- Ruđer Bošković Institute (RBI), Zagreb, Croatia
| | - M A Lopez
- Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT), Madrid, Spain
| | - P Olko
- Instytut Fizyki Jądrowej Polskiej Akademii Nauk (IFJ PAN), Kraków, Poland
| | - V Olšovcová
- ELI Beamlines, Institute of Physics, Czech Academy of Sciences, Dolní Břežany, Czech Republic
| | - H Rabus
- Physikalisch Technische Bundesanstalt (PTB), Braunschweig and Berlin, Germany
| | - W Rühm
- Helmholtz Zentrum München, Institute of Radiation Medicine, Neuherberg, Germany
| | - M Silari
- CERN, 1211 Geneva 23, Switzerland
| | - L Stolarczyk
- Danish Centre for Particle Therapy, Aarhus, Denmark
- Instytut Fizyki Jądrowej Polskiej Akademii Nauk (IFJ PAN), Kraków, Poland
| | - R Tanner
- Public Health England, Chilton, Didcot, UK
| | - F Vanhavere
- Belgian Nuclear Research Centre (SCK-CEN), Mol, Belgium
| | - A Vargas
- Institute of Energy Technologies, Universitat Politecnica de Catalunya, Barcelona, Spain
| | - C Woda
- Helmholtz Zentrum München, Institute of Radiation Medicine, Neuherberg, Germany
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Rabus H, Gómez-Ros JM, Villagrasa C, Eakins J, Vrba T, Blideanu V, Zankl M, Tanner R, Struelens L, Brkić H, Domingo C, Baiocco G, Caccia B, Huet C, Ferrari P. Quality assurance for the use of computational methods in dosimetry: activities of EURADOS Working Group 6 'Computational Dosimetry'. J Radiol Prot 2021; 41:46-58. [PMID: 33406511 DOI: 10.1088/1361-6498/abd914] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Accepted: 01/06/2021] [Indexed: 06/12/2023]
Abstract
Working Group (WG) 6 'Computational Dosimetry' of the European Radiation Dosimetry Group promotes good practice in the application of computational methods for radiation dosimetry in radiation protection and the medical use of ionising radiation. Its cross-sectional activities within the association cover a large range of current topics in radiation dosimetry, including more fundamental studies of radiation effects in complex systems. In addition, WG 6 also performs scientific research and development as well as knowledge transfer activities, such as training courses. Monte Carlo techniques, including the use of anthropomorphic and other numerical phantoms based on voxelised geometrical models, play a strong part in the activities pursued in WG 6. However, other aspects and techniques, such as neutron spectra unfolding, have an important role as well. A number of intercomparison exercises have been carried out in the past to provide information on the accuracy with which computational methods are applied and whether best practice is being followed. Within the exercises that are still ongoing, the focus has changed towards assessing the uncertainty that can be achieved with these computational methods. Furthermore, the future strategy of WG 6 also includes an extension of the scope toward experimental benchmark activities and evaluation of cross-sections and algorithms, with the vision of establishing a gold standard for Monte Carlo methods used in medical and radiobiological applications.
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Affiliation(s)
- H Rabus
- Physikalisch-Technische Bundesanstalt (PTB), Abbestrasse 2-12, 10587 Berlin, Germany
| | - J M Gómez-Ros
- Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT), Madrid, Spain
| | - C Villagrasa
- Institut de Radioprotection et de Sûreté Nucléaire (IRSN), Fontenay-aux-Roses, France
| | - J Eakins
- Public Health England (PHE), Didcot, United Kingdom
| | - T Vrba
- Czech Technical University in Prague (CTU), Prague, Czech Republic
| | - V Blideanu
- Commissariat à l'Énergie Atomique et aux Énergies Alternatives (CEA), Saclay, France
| | - M Zankl
- Helmholtz Zentrum München German Research Center for Environmental Health (HMGU), Neuherberg, Germany
| | - R Tanner
- Public Health England (PHE), Didcot, United Kingdom
| | - L Struelens
- Belgian Nuclear Research Center (SCK·CEN), Mol, Belgium
| | - H Brkić
- J. J. Strossmayer University of Osijek (MEFOS), Osijek, Croatia
| | - C Domingo
- Universitat Autonoma de Barcelona (UAB), Barcelona, Spain
| | - G Baiocco
- Physics Department, University of Pavia, Pavia, Italy
| | - B Caccia
- National Institute of Health (ISS), Rome, Italy
| | - C Huet
- Institut de Radioprotection et de Sûreté Nucléaire (IRSN), Fontenay-aux-Roses, France
| | - P Ferrari
- National Agency for New Technologies, Energy and Sustainable Economic Development (ENEA), Bologna, Italy
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5
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Rühm W, Ainsbury E, Breustedt B, Caresana M, Gilvin P, Knežević Ž, Rabus H, Stolarczyk L, Vargas A, Bottollier-Depois J, Harrison R, Lopez M, Stadtmann H, Tanner R, Vanhavere F, Woda C, Clairand I, Fantuzzi E, Fattibene P, Hupe O, Olko P, Olšovcová V, Schuhmacher H, Alves J, Miljanic S. The European radiation dosimetry group – Review of recent scientific achievements. Radiat Phys Chem Oxf Engl 1993 2020. [DOI: 10.1016/j.radphyschem.2019.108514] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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6
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Alves JG, Fantuzzi E, Rühm W, Gilvin P, Vargas A, Tanner R, Rabus H, Lopez MA, Breustedt B, Harrison R, Stolarczyk L, Fattibene P, Woda C, Caresana M, Knežević Ž, Bottollier-Depois JF, Clairand I, Mayer S, Miljanic S, Olko P, Schuhmacher H, Stadtmann H, Vanhavere F. EURADOS education and training activities. J Radiol Prot 2019; 39:R37-R50. [PMID: 31307030 DOI: 10.1088/1361-6498/ab3256] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
This paper provides a summary of the Education and Training (E&T) activities that have been developed and organised by the European Radiation Dosimetry Group (EURADOS) in recent years and in the case of Training Courses over the last decade. These E&T actions include short duration Training Courses on well-established topics organised within the activity of EURADOS Working Groups (WGs), or one-day events integrated in the EURADOS Annual Meeting (workshops, winter schools, the intercomparison participants' sessions and the learning network, among others). Moreover, EURADOS has recently established a Young Scientist Grant and a Young Scientist Award. The Grant supports young scientists by encouraging them to perform research projects at other laboratories of the EURADOS network. The Award is given in recognition of excellent work developed within the WGs' work programme. Additionally, EURADOS supports the dissemination of knowledge in radiation dosimetry by promoting and endorsing conferences such as the individual monitoring (IM) series, the neutron and ion dosimetry symposia (NEUDOS) and contributions to E&T sessions at specific events.
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Affiliation(s)
- J G Alves
- EURADOS, EURADOS e.V. Postfach 1129, D-85758 Neuherberg, Germany. Universidade de Lisboa (UL), Instituto Superior Técnico (IST), Laboratório de Proteção e Segurança Radiológica (LPSR), Estrada Nacional 10, 2695-066 Bobadela LRS, Portugal. Departamento de Engenharia e Ciências Nucleares (DECN), Centro de Ciências e Tecnologias Nucleares (C2TN), do IST, Portugal
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7
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Rühm W, Bottollier-Depois JF, Gilvin P, Harrison R, Knežević Ž, Lopez MA, Tanner R, Vargas A, Woda C. The work programme of EURADOS on internal and external dosimetry. Ann ICRP 2018; 47:20-34. [PMID: 29664324 DOI: 10.1177/0146645318756224] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Since the early 1980s, the European Radiation Dosimetry Group (EURADOS) has been maintaining a network of institutions interested in the dosimetry of ionising radiation. As of 2017, this network includes more than 70 institutions (research centres, dosimetry services, university institutes, etc.), and the EURADOS database lists more than 500 scientists who contribute to the EURADOS mission, which is to promote research and technical development in dosimetry and its implementation into practice, and to contribute to harmonisation of dosimetry in Europe and its conformance with international practices. The EURADOS working programme is organised into eight working groups dealing with environmental, computational, internal, and retrospective dosimetry; dosimetry in medical imaging; dosimetry in radiotherapy; dosimetry in high-energy radiation fields; and harmonisation of individual monitoring. Results are published as freely available EURADOS reports and in the peer-reviewed scientific literature. Moreover, EURADOS organises winter schools and training courses on various aspects relevant for radiation dosimetry, and formulates the strategic research needs in dosimetry important for Europe. This paper gives an overview on the most important EURADOS activities. More details can be found at www.eurados.org .
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Affiliation(s)
- W Rühm
- a Department of Radiation Sciences, Institute for Radiation Protection, Helmholtz Centre Munich, Ingolstädter Landstr. 1, 85764 Neuherberg, Germany
| | | | | | | | | | - M A Lopez
- f Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas, Spain
| | | | - A Vargas
- g Universitat Politècnica de Catalunya, Spain
| | - C Woda
- a Department of Radiation Sciences, Institute for Radiation Protection, Helmholtz Centre Munich, Ingolstädter Landstr. 1, 85764 Neuherberg, Germany
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8
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Branquart E, Brundu G, Buholzer S, Chapman D, Ehret P, Fried G, Starfinger U, van Valkenburg J, Tanner R. A prioritization process for invasive alien plant species incorporating the requirements of EU Regulation no. 1143/2014. ACTA ACUST UNITED AC 2016. [DOI: 10.1111/epp.12336] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- E. Branquart
- Invasive Species Unit; Service Public de Wallonie; Gembloux Belgium
| | - G. Brundu
- University of Sassari; Sassari Italy
| | - S. Buholzer
- Agroscope Institute for Sustainability Sciences; Zurich Switzerland
| | - D. Chapman
- NERC Centre for Ecology and Hydrology; Edinburgh UK
| | - P. Ehret
- Ministry of Agriculture; National Plant Protection Organization; Montpellier Cedex 2 France
| | - G. Fried
- Anses, Laboratoire de la Santé des Végétaux; Unité Entomologie et Plantes Invasives; Montferrier-sur-Lez Cedex France
| | - U. Starfinger
- Julius Kühn Institut (JKI); Federal Research Centre for Cultivated Plants; Institute for National and International Plant Health; Braunschweig Germany
| | | | - R. Tanner
- European and Mediterranean Plant Protection Organization; Paris France
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Chevallier MA, Fantuzzi E, Cruz-Suarez R, Luszik-Bhadra M, Mayer S, Thomas DJ, Tanner R, Vanhavere F. EURADOS IC2012N: FURTHER INFORMATION DERIVED FROM AN EURADOS INTERNATIONAL COMPARISON OF NEUTRON PERSONAL DOSEMETERS. Radiat Prot Dosimetry 2016; 170:78-81. [PMID: 26715777 DOI: 10.1093/rpd/ncv518] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
In 2012, the European Radiation Dosimetry Group (EURADOS) performed an intercomparison for neutron dosemeters that are intended to measure personal dose equivalent, Hp(10). A total of 31 participants registered with 34 dosimetry systems. The irradiation tests were chosen to provide the participants with useful information on their dosimetry systems, i.e. linearity, reproducibility, responses for different energies and angles and to simulated workplace fields. This paper gives details of the extensive information derived from the exercise.
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Affiliation(s)
- M-A Chevallier
- Institut de Radioprotection et de Sûreté Nucléaire (IRSN), BP 17, 31 avenue de la Division Leclerc, Fontenay-aux-Roses 92260, France
| | - E Fantuzzi
- ENEA-Radiation Protection Institute, via dei Colli, 16, Bologna 40136, Italy
| | | | - M Luszik-Bhadra
- Physikalisch-Technische Bundesanstalt (PTB), Bundesallee 100, Braunschweig D-38116, Germany
| | - S Mayer
- Paul Scherrer Institute (PSI), Villigen PSI CH-5232, Switzerland
| | - D J Thomas
- National Physical Laboratory (NPL), Hampton Road, Teddington TW11 0LW, UK
| | - R Tanner
- Public Health England, CRCE, Chilton, Didcot, Oxon OX11 0RQ, UK
| | - F Vanhavere
- SCK-CEN, Belgian Nuclear Research Centre, Boeretang 200, Mol 2400, Belgium
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10
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Rühm W, Fantuzzi E, Harrison R, Schuhmacher H, Vanhavere F, Alves J, Bottollier Depois JF, Fattibene P, Knežević Ž, Lopez MA, Mayer S, Miljanić S, Neumaier S, Olko P, Stadtmann H, Tanner R, Woda C. EURADOS strategic research agenda: vision for dosimetry of ionising radiation. Radiat Prot Dosimetry 2016; 168:223-34. [PMID: 25752758 PMCID: PMC4884873 DOI: 10.1093/rpd/ncv018] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2014] [Revised: 02/05/2015] [Accepted: 02/06/2015] [Indexed: 05/04/2023]
Abstract
Since autumn 2012, the European Radiation Dosimetry Group (EURADOS) has been developing its Strategic Research Agenda (SRA), which is intended to contribute to the identification of future research needs in radiation dosimetry in Europe. The present article summarises-based on input from EURADOS Working Groups (WGs) and Voting Members-five visions in dosimetry and defines key issues in dosimetry research that are considered important for the next decades. The five visions include scientific developments required towards (a) updated fundamental dose concepts and quantities, (b) improved radiation risk estimates deduced from epidemiological cohorts, (c) efficient dose assessment for radiological emergencies, (d) integrated personalised dosimetry in medical applications and (e) improved radiation protection of workers and the public. The SRA of EURADOS will be used as a guideline for future activities of the EURADOS WGs. A detailed version of the SRA can be downloaded as a EURADOS report from the EURADOS website (www.eurados.org).
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Affiliation(s)
- W Rühm
- Helmholtz Center Munich, Institute of Radiation Protection, Neuherberg, Germany
| | - E Fantuzzi
- Radiation Protection Institute, ENEA, Bologna, Italy
| | | | - H Schuhmacher
- Physikalisch Technische Bundesanstalt (PTB), Braunschweig, Germany
| | - F Vanhavere
- Belgian Nuclear Research Centre (SCK-CEN), Mol, Belgium
| | - J Alves
- Instituto Superior Técnico (IST), CTN, Lisboa, Portugal
| | - J F Bottollier Depois
- Institut de Radioprotection et de Sûreté Nucléaire (IRSN), Fontenay-aux-Roses Cedex, France
| | - P Fattibene
- Istituto Superiore di Sanità (ISS), Rome, Italy
| | - Ž Knežević
- Ruđer Bošković Institute (RBI), Zagreb, Croatia
| | - M A Lopez
- Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT), Madrid, Spain
| | - S Mayer
- Paul Scherer Institut (PSI), Villigen, Switzerland
| | - S Miljanić
- Ruđer Bošković Institute (RBI), Zagreb, Croatia
| | - S Neumaier
- Physikalisch Technische Bundesanstalt (PTB), Braunschweig, Germany
| | - P Olko
- Instytut Fizyki Jądrowej (IFJ), Krakow, Poland
| | - H Stadtmann
- Seibersdorf Labor GmbH, Seibersdorf, Austria
| | - R Tanner
- Public Health England, Chilton, Didcot, UK
| | - C Woda
- Helmholtz Center Munich, Institute of Radiation Protection, Neuherberg, Germany
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11
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Tanner R, Twomey M, Maher MM, Fitzgerald E, O'Connor J. A Rare Cause of Testicular Pain: Thrombosis of the Pampiniform Plexus. Ir Med J 2016; 109:347-348. [PMID: 26904794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Testicular pain is a common presentation in the emergency department. The cause includes a wide array of differentials. This report highlights a case of thrombosis of the pampiniform plexus as a rare cause of testicular pain. Doppler ultrasound should be the first line investigation. Symptomatic relief with anti-inflammatory medication should be sufficient for management.
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12
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Tanner R, Harney MS. The initial management of epistaxis. Ir Med J 2015; 108:123-124. [PMID: 26016308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Epistaxis affects up to 60% of people. The basic first aid management of epistaxis is clearly stated in the literature and guidelines. Anecdotal evidence would suggest that these principles are not understood by patients and are not being conveyed to patients by their doctors. The aim was to assess current knowledge of epistaxis first aid management and identify the principle source of education in epistaxis control. This was a single centre cross-sectional study. The study population included those presenting to otolaryngology outpatients with epistaxis. 20 patients participated in this study over a 7 month period. Five (25%) patients did not use compression during an episode of epistaxis. Nine (60%) patients that used the compression technique failed to compress the lower one-third of the nose. Only two (10%) of patients identified their GP as having taught them first aid for epistaxis. Knowledge of epistaxis management is poor. Education regarding the basic principles of first aid for epistaxis may reduce morbidity and unnecessary consultations from health professionals.
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Baz M, Haji G, Menzies-Gow A, Tanner R, Hopkinson N, Polkey M, Hull J. P67 Laryngeal Narrowing In Chronic Obstructive Pulmonary Disease (copd): A Mechanism For Generating Intrinsic Peep? Thorax 2014. [DOI: 10.1136/thoraxjnl-2014-206260.208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Curtis K, Tanner R, O'Brien K, Polkey M, Edwards L, Hopkinson N. M144 Acute Dietary Nitrate Supplementation Reduces The Oxygen Cost Of Submaximal Exercise In Copd. Thorax 2014. [DOI: 10.1136/thoraxjnl-2014-206260.439] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Trompier F, Boschung M, Buffler A, Domingo C, Cale E, Chevallier MA, Esposito A, Ferrarini M, Geduld DR, Hager L, Hohmann E, Mayer S, Musso A, Romero-Esposito M, Röttger S, Smit FD, Sashala Naik A, Tanner R, Wissmann F, Caresana M. A comparison of the response of PADC neutron dosemeters in high-energy neutron fields. Radiat Prot Dosimetry 2014; 161:78-81. [PMID: 24298170 DOI: 10.1093/rpd/nct275] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Within the framework of the EURADOS Working Group 11, a comparison of passive neutron dosemeters in high-energy neutron fields was organised in 2011. The aim of the exercise was to evaluate the response of poly-allyl-glycol-carbonate neutron dosemeters from various European dosimetry laboratories to high-energy neutron fields. Irradiations were performed at the iThemba LABS facility in South Africa with neutrons having energies up to 66 and 100 MeV.
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Affiliation(s)
- F Trompier
- Institute for Radiological Protection and Nuclear Safety, BP 17, Fontenay-aux-Roses F-92262, France
| | - M Boschung
- Radiation Metrology Section, Paul Scherrer Institute (PSI), Villigen CH-5232, Switzerland
| | - A Buffler
- Department of Physics, University of Cape Town, Rondebosch 7700, South Africa
| | - C Domingo
- Universitat Autònoma de Barcelona, Barcelona, Spain
| | - E Cale
- Institute for Radiological Protection and Nuclear Safety, BP 40035, Le Vésinet F-78116, France
| | - M-A Chevallier
- Institute for Radiological Protection and Nuclear Safety, BP 17, Fontenay-aux-Roses F-92262, France
| | - A Esposito
- IFNF-LNF, FISMEL, via E. Fermi 40, Frascati 00044, Italy
| | - M Ferrarini
- CNAO, Via Privata Campeggi, Pavia 27100, Italy
| | - D R Geduld
- Department of Physics, University of Cape Town, Rondebosch 7700, South Africa iThemba Laboratory for Accelerator Based Sciences, Somerset West 7129, South Africa
| | - L Hager
- Public Health England, CRCE, Chilton, Didcot, Oxon OX11 0RQ, UK
| | - E Hohmann
- Radiation Metrology Section, Paul Scherrer Institute (PSI), Villigen CH-5232, Switzerland
| | - S Mayer
- Radiation Metrology Section, Paul Scherrer Institute (PSI), Villigen CH-5232, Switzerland
| | - A Musso
- Institute for Radiological Protection and Nuclear Safety, BP 40035, Le Vésinet F-78116, France
| | | | - S Röttger
- Physikalisch-Technische Bundesanstalt (PTB), Bundesallee 100, Braunschweig 38116, Germany
| | - F D Smit
- iThemba Laboratory for Accelerator Based Sciences, Somerset West 7129, South Africa
| | - A Sashala Naik
- Dipartimento di Energia, Politecnico di Milano, CESNEF, via Ponzio 34/3, Milano 20133, Italy Mi.Am srl via De Amicis 5, Fabiano di Rivergaro, PC 29029, Italy
| | - R Tanner
- Public Health England, CRCE, Chilton, Didcot, Oxon OX11 0RQ, UK
| | - F Wissmann
- Physikalisch-Technische Bundesanstalt (PTB), Bundesallee 100, Braunschweig 38116, Germany
| | - M Caresana
- Mi.Am srl via De Amicis 5, Fabiano di Rivergaro, PC 29029, Italy
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Fantuzzi E, Chevallier MA, Cruz-Suarez R, Luszik-Bhadra M, Mayer S, Thomas DJ, Tanner R, Vanhavere F. EURADOS IC2012N: EURADOS 2012 intercomparison for whole-body neutron dosimetry. Radiat Prot Dosimetry 2014; 161:73-77. [PMID: 24578527 DOI: 10.1093/rpd/nct295] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
The European Radiation Dosimetry Group (EURADOS) IC2012n intercomparison for neutron dosemeters intended to measure personal dose equivalent, Hp(10), was performed in 2012. A total of 31 participants (27 individual monitoring services from Europe, 2 from Japan, 1 from Israel and 1 from USA) registered with 34 dosimetry systems. Participation was restricted to passive or active neutron dosemeters routinely used in individual monitoring of radiation workers. The dosimetry systems were based on thermoluminescence, polyallyldiglycol carbonate, optically stimulated luminescence, fission track detection and silicon diodes (electronic devices). The irradiation tests were chosen to provide the participants with useful information on their dosimetry systems, i.e. linearity, reproducibility, responses for different energies and angles and to simulated workplace fields. The paper will report and discuss the first analysis of the results of the EURADOS IC2012n intercomparison.
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Affiliation(s)
- E Fantuzzi
- ENEA-Radiation Protection Institute, via dei Colli, 16-40136 Bologna (BO), Italy
| | - M-A Chevallier
- Institut de Radioprotection et de Sûreté Nucléaire (IRSN), BP 17, 31 avenue de la Division Leclerc, 92260 Fontenay-aux-Roses, France
| | | | - M Luszik-Bhadra
- Physikalisch-Technische Bundesanstalt (PTB), Bundesallee 100, D-38116 Braunschweig, Germany
| | - S Mayer
- Paul Scherrer Institute (PSI), CH-5232 Villigen PSI, Switzerland
| | - D J Thomas
- National Physical Laboratory (NPL), Hampton Road, Teddington TW11 0LW, UK
| | - R Tanner
- Public Health England, CRCE, Chilton, Didcot, Oxon OX11 0RQ, UK
| | - F Vanhavere
- SCK-CEN, Belgian Nuclear Research Centre, Boeretang 200, 2400 Mol, Belgium
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Ferrari P, Gualdrini G, Tanner R, Fantuzzi E. Hp(3)/Φ conversion coefficients for neutrons: discussion on the basis of the new ICRP recommended limit for the eye lens. Radiat Prot Dosimetry 2014; 161:17-22. [PMID: 24129550 DOI: 10.1093/rpd/nct246] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
The new recommendation issued by the International Commission on Radiological Protection (ICRP) introducing a 20-mSv annual dose limit for the eye lens stimulated an interesting debate among the radiation protection community. In the present work the problem of estimating Hp(3) for neutron realistic workplace spectra is treated, employing the recently published Hp(3)/Φ conversion coefficients with the aim of establishing a workplace-dependent relationship between Hp(10) and Hp(3). The results demonstrate that, whilst the two quantities can differ by less than 10 %, in general, Hp(10) cannot be considered a conservative estimate of Hp(3).
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Affiliation(s)
- P Ferrari
- ENEA-Radiation Protection Institute, via dei Colli 16, Bologna, BO 40136, Italy
| | - G Gualdrini
- ENEA-Radiation Protection Institute, via dei Colli 16, Bologna, BO 40136, Italy
| | - R Tanner
- Public Health England, CRCE, Chilton, Didcot, Oxon OX11 0RQ, UK
| | - E Fantuzzi
- ENEA-Radiation Protection Institute, via dei Colli 16, Bologna, BO 40136, Italy
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Gualdrini G, Ferrari P, Tanner R. Fluence to Hp(3) conversion coefficients for neutrons from thermal to 15 MeV. Radiat Prot Dosimetry 2013; 157:278-290. [PMID: 23671134 DOI: 10.1093/rpd/nct126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
The recent statement on tissue reactions issued by the International Commission on Radiological Protection in April 2011 recommends a very significant reduction in the equivalent dose annual limit for the eye lens from 150 to 20 mSv y(-1); this has stimulated a lot of interest in eye lens dosimetry in the radiation protection community. Until now no conversion coefficients were available for the operational quantity Hp(3) for neutrons. The scope of the present work was to extend previous evaluations of H*(10) and Hp(10) performed at the PTB in 1995 to provide also Hp(3) data for neutrons. The present work is also intended to complete the studies carried out on photons during the last 4 y within the European Union-funded ORAMED (optimisation of radiation protection for medical staff) project.
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Affiliation(s)
- G Gualdrini
- ENEA-IRP, Radiation Protection Institute, 16 via dei colli, Bologna (BO) 40136, Italy
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Mohan D, Lewis A, Patel MS, Curtis K, Tanner R, Kemp P, Polkey MI. S53 Studying fibre specific gene expression in COPD using laser capture micro-dissection in human skeletal muscle. Thorax 2013. [DOI: 10.1136/thoraxjnl-2013-204457.60] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Donadio C, Kanaki A, Martin-Gomez A, Garcia S, Palacios-Gomez M, Donadio C, Calia D, Colombini E, DI Francesco F, Ghimenti S, Kanaki A, Onor M, Tognotti D, Fuoco R, Marka-Castro E, Torres Zamora MI, Giron-Mino J, Jaime-Solis MA, Arteaga LM, Romero H, Marka-Castro E, Akonur A, Leypoldt K, Asola M, Culleton B, Eloot S, Glorieux G, Nathalie N, Vanholder R, Perez de Jose A, Verdalles Guzman U, Abad Esttebanez S, Vega Martinez A, Barraca D, Yuste C, Bucalo L, Rincon A, Lopez-Gomez JM, Bataille P, Celine P, Raymond A, Francois G, Herve L, Michel D, Jean Louis R, Zhu F, Kotanko P, Thijssen S, Levin NW, Papamichail N, Bougiakli M, Gouva C, Antoniou S, Gianitsi S, Vlachopanou A, Chachalos S, Naka K, Kaarsavvidou D, Katopodis K, Michalis L, Sasaki K, Yasuda K, Yamato M, Surace A, Rovatti P, Steckiph D, Bandini R, Severi S, Dellacasa Bellingegni A, Santoro A, Arias M, Arias M, Sentis A, Perez N, Fontsere N, Vera M, Rodriguez N, Arcal C, Ortega N, Uriza F, Cases A, Maduell F, Abbas SR, Abbas SR, Zhu F, Kotanko P, Levin NW, Georgianos P, Sarafidis P, Nikolaidis P, Lasaridis A, Ahmed A, Ahmed A, Kaoutar H, Mohammed B, Zouhir O, Balter P, Ginsberg N, Taylor P, Sullivan T, Usvyat LA, Levin NW, Kotanko P, Zabetakis P, Moissl U, Ferrario M, Garzotto F, Wabel P, Cruz D, Tetta C, Signorini MG, Cerutti S, Brendolan A, Ronco C, Heaf J, Axelsen M, Pedersen RS, Ahmed A, Ahmed A, Amine H, Oualim Z, Ammirati AL, Guimaraes de Souza NK, Nemoto Matsui T, Luiz Vieira M, Alves de Oliveira WA, Fischer CH, Dias Carneiro F, Iizuka IJ, Aparecida de Souza M, Mallet AC, Cruz Andreoli MC, Cardoso Dos Santos BF, Rosales L, Dou Y, Carter M, Thijssen S, Kotanko P, Testa A, Sottini L, Giacon B, Prati E, Loschiavo C, Brognoli M, Marseglia C, Tommasi A, Sereni L, Palladino G, Bove S, Bosticardo G, Schillaci E, Detoma P, Bergia R, Park JW, Moon SJ, Choi HY, Ha SK, Park HC, Liao Y, Zhang L, Fu P, Igarashi H, Suzuki N, Esashi S, Masakane I, Panichi V, De Ferrari G, Saffiotti S, Sidoti A, Biagioli M, Bianchi S, Imperiali P, Gabrielli C, Conti P, Patrone P, Rombola G, Falqui V, Mura C, Icardi A, Rosati A, Santori F, Mannarino A, Bertucci A, Steckiph D, Jeong J, Jeong J, Kim OK, Kim NH, Bots M, Den Hoedt C, Grooteman MP, Van der Weerd NC, Mazairac AHA, Levesque R, Ter Wee PM, Nube MJ, Blankestijn P, Van den Dorpel MA, Park Y, Jeon J, Tessitore N, Tessitore N, Bedogna V, Girelli D, Corazza L, Jacky P, Guillaume Q, Julien B, Marcinkowski W, Drozdz M, Milkowski A, Rydzynska T, Prystacki T, August R, Benedyk-Lorens E, Bladek K, Cina J, Janiszewska G, Kaczmarek A, Lewinska T, Mendel M, Paszkot M, Trafidlo E, Trzciniecka-Kloczkowska M, Vasilevsky A, Konoplev G, Lopatenko O, Komashnya A, Visnevsky K, Gerasimchuk R, Neivelt I, Frorip A, Vostry M, Racek J, Rajdl D, Eiselt J, Malanova L, Pechter U, Selart A, Ots-Rosenberg M, Krieter DH, Seidel S, Merget K, Lemke HD, Wanner C, Krieter DH, Canaud B, Lemke HD, Rodriguez A, Morgenroth A, Von Appen K, Dragoun GP, Wanner C, Fluck R, Fouque D, Lockridge R, Motomiya Y, Uji Y, Hiramatsu T, Ando Y, Furuta M, Furuta M, Kuragano T, Kida A, Yahiro M, Otaki Y, Hasuike Y, Nonoguchi H, Nakanishi T, Sain M, Sain M, Kovacic V, Ljutic D, Radic J, Jelicic I, Yalin SF, Yalin SF, Trabulus S, Yalin AS, Altiparmak MR, Serdengecti K, Ohtsuka A, Fukami K, Ishikawa K, Ando R, Kaida Y, Adachi T, Sugi K, Okuda S, Nesterova OB, Nesterova OB, Suglobova ED, Golubev RV, Vasiliev AN, Lazeba VA, Smirnov AV, Arita K, Kihara E, Maeda K, Oda H, Doi S, Masaki T, Hidaka S, Ishioka K, Oka M, Moriya H, Ohtake T, Nomura S, Kobayashi S, Wagner S, Gmerek A, Wagner J, Wizemann V, Eftimovska - Otovic N, Spaseska-Gjurovska K, Bogdanovska S, Babalj - Banskolieva E, Milovanceva M, Grozdanovski R, Pisani A, Riccio E, Mancini A, Ambuhl P, Astrid S, Ivana P, Martin H, Thomas K, Hans-Rudolf R, Daniel A, Denes K, Marco M, Wuthrich RP, Andreas S, Andrulli S, Altieri P, Sau G, Bolasco P, Pedrini LA, Basile C, David S, Feriani M, Nebiolo PE, Ferrara R, Casu D, Logias F, Tarchini R, Cadinu F, Passaghe M, Fundoni G, Villa G, DI Iorio BR, Zoccali C, Locatelli F, Kihara E, Arita K, Hamamoto M, Maeda K, Oda H, Doi S, Masaki T, Lee DY, Kim B, Moon KH, LI Z, Fu P, Ahrenholz P, Ahrenholz P, Winkler RE, Waitz G, Wolf H, Grundstrom G, Alquist M, Holmquist M, Christensson A, Bjork P, Abdgawad M, Ekholm L, Segelmark M, Corsi C, Santoro A, De Bie J, Mambelli E, Mortara D, Santoro A, Severi S, Arroyo D, Arroyo D, Panizo N, Quiroga B, Reque J, Melero R, Rodriguez-Ferrero M, Rodriguez-Benitez P, Anaya F, Luno J, Ragon A, James A, Brunet P, Ribeiro S, Faria MS, Rocha S, Rodrigues S, Catarino C, Reis F, Nascimento H, Fernandes J, Miranda V, Quintanilha A, Belo L, Costa E, Santos-Silva A, Arund J, Tanner R, Fridolin I, Luman M, Clajus C, Clajus C, Kielstein JT, Haller H, David S, Basile C, Basile C, Libutti P, Lisi P, Vernaglione L, Casucci F, Losurdo N, Teutonico A, Lomonte C, Krisp C, Gmerek A, Wagner J, Wolters DA, Pedrini LA, Matsuyama M, Tomo T, Ishida K, Matsuyama K, Nakata T, Kadota J, Caiazzo M, Monari E, Cuoghi A, Bellei E, Bergamini S, Palladino G, Tomasi A, Baranger T, Seniuta P, Berge F, Drouillat V, Frangie C, Rosier E, Labonia W, Lescano A, Rubio D, Von der Lippe N, Jorgensen JA, Osthus TB, Waldum B, Os I, Bossola M, DI Stasio E, Antocicco M, Tazza L, Griveas I, Karameris A, Pasadakis P, Savica V, Santoro D, Saitta S, Tigano V, Bellinghieri G, Gangemi S, Daniela R, Checherita IA, Ciocalteu A, Vacaroiu IA, Niculae A, Bladek K, Stefaniak E, Pietrzak I, Krupa D, Garred L, Santoro A, Mancini E, Corrazza L, Atti M, Afsar B, Stamopoulos D, Mpakirtzi N, Gogola B, Zeibekis M, Stivarou D, Panagiotou M, Grapsa E, Vega Vega O, Barraca Nunez D, Abad Esttebanez S, Bucalo L, Yuste C, Lopez-Gomez JM, Fernandez-Lucas M, Gomis A, Teruel JL, Elias S, Quereda C, Hignell L, Humphrey S, Pacy N, Stamopoulos D, Mpakirtzi N, Afentakis N, Grapsa E. Extracorporeal dialysis: techniques and adequacy. Nephrol Dial Transplant 2012. [DOI: 10.1093/ndt/gfs224] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Shrikrishna D, Tanner R, Seymour JM, Patel M, Connolly BA, Puthucheary ZA, Walsh SLF, Bloch SA, Sidhu PS, Hart N, Moxham J, Polkey MI, Hopkinson NS. S94 Ultrasound measurement of quadriceps wasting in early chronic obstructive pulmonary disease and its relationship with daily physical activity. Thorax 2011. [DOI: 10.1136/thoraxjnl-2011-201054b.94] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Goetz W, Pike WT, Hviid SF, Madsen MB, Morris RV, Hecht MH, Staufer U, Leer K, Sykulska H, Hemmig E, Marshall J, Morookian JM, Parrat D, Vijendran S, Bos BJ, El Maarry MR, Keller HU, Kramm R, Markiewicz WJ, Drube L, Blaney D, Arvidson RE, Bell JF, Reynolds R, Smith PH, Woida P, Woida R, Tanner R. Microscopy analysis of soils at the Phoenix landing site, Mars: Classification of soil particles and description of their optical and magnetic properties. ACTA ACUST UNITED AC 2010. [DOI: 10.1029/2009je003437] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Lauri K, Arund J, Tanner R, Jerotskaja J, Luman M, Fridolin I. Behaviour of uremic toxins and UV absorbance in respect to low and high flux dialyzers. ACTA ACUST UNITED AC 2010. [DOI: 10.3176/eng.2010.1.09] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Ritchie AJ, Kopycinski J, Campion S, Moore S, Liu M, Tanner R, Kuldanek K, Legg K, Wang M, Moodie Z, Korber B, Fidler S, McMichael A, Goonetilleke N. P16-42. Characterisation of HIV-1 specific T-cell responses in exposed uninfected individuals from a London cohort. Retrovirology 2009. [PMCID: PMC2767772 DOI: 10.1186/1742-4690-6-s3-p271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Leer K, Bertelsen P, Binau CS, Djernis Olsen L, Drube L, Falkenberg TV, Haspang MP, Madsen MB, Olsen M, Sykulska H, Vijendran S, Pike WT, Staufer U, Parrat D, Lemmon M, Hecht MH, Mogensen CT, Gross MA, Goetz W, Marshall J, Britt D, Smith P, Shinohara C, Woida P, Woida R, Tanner R, Reynolds R, Shaw A. Magnetic properties experiments and the Surface Stereo Imager calibration target onboard the Mars Phoenix 2007 Lander: Design, calibration, and science goals. ACTA ACUST UNITED AC 2008. [DOI: 10.1029/2007je003014] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Schuhmacher H, Bartlett D, Bolognese-Milsztajn T, Boschung M, Coeck M, Curzio G, d'Errico F, Fiechtner A, Kyllönen JE, Lacoste V, Lindborg L, Luszik-Bhadra M, Reginatto M, Tanner R, Vanhavere F. Evaluation of individual dosimetry in mixed neutron and photon radiation fields (EVIDOS). Part II: Conclusions and recommendations. Radiat Prot Dosimetry 2007; 125:281-4. [PMID: 17314086 DOI: 10.1093/rpd/ncm167] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
The paper presents the main conclusions and recommendations derived from the EVIDOS project, which is supported by the European Commission within the 5th Framework Programme. EVIDOS aims at evaluating state of the art neutron dosimetry techniques in representative workplaces of the nuclear industry with complex mixed neutron-photon radiation fields. This analysis complements a series of individual papers which present detailed results and it summarises the main findings from a practical point of view. Conclusions and recommendations are given concerning characterisation of radiation fields, methods to derive radiation protection quantities and dosemeter results.
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Affiliation(s)
- H Schuhmacher
- Physikalisch-Technische Bundesanstalt, D-38116 Braunschweig, Germany.
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Lindborg L, Bolognese-Milsztajn T, Boschung M, Coeck M, Curzio G, d'Errico F, Fiechtner A, Hallfarth D, Lievens B, Lillhök JE, Lövefors-Daun A, Lacoste V, Luszik-Bhadra M, Reginatto M, Schuhmacher H, Tanner R, Vanhavere F. Application of workplace correction factors to dosemeter results for the assessment of personal doses at nuclear facilities. Radiat Prot Dosimetry 2007; 124:213-8. [PMID: 17893081 DOI: 10.1093/rpd/ncm394] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
Ratios of H(p)(10) and H*(10) were determined with reference instruments in a number of workplace fields within the nuclear industry and used to derive workplace-specific correction factors. When commercial survey meter results together with these factors were applied to the results of the locally used personal dosemeters their results improved and became within 0.7 and 1.7 of the reference values or better depending on the response of the survey meter. A similar result was obtained when a correction was determined with a prototype reference instrument for H(p)(10) after adjustment of its response. Commercially available survey instruments both for photon and neutron H*(10) measurements agreed with the reference instruments in most cases to within 0.5-1.5. Those conclusions are derived from results reported within the EC supported EVIDOS contract.
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Affiliation(s)
- L Lindborg
- Karolinska Institutet, Department of Medical Radiation Physics, SE 171 76 Stockholm, Sweden.
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Luszik-Bhadra M, Bolognese-Milsztajn T, Boschung M, Coeck M, Curzio G, d'Errico F, Fiechtner A, Lacoste V, Lindborg L, Reginatto M, Schuhmacher H, Tanner R, Vanhavere F. Direction distributions of neutrons and reference values of the personal dose equivalent in workplace fields. Radiat Prot Dosimetry 2007; 125:364-8. [PMID: 17369265 DOI: 10.1093/rpd/ncm189] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
Within the EC project EVIDOS, double-differential (energy and direction) fluence spectra were determined by means of novel direction spectrometers. By folding the spectra with fluence-to-dose equivalent conversion coefficients, contributions to H*(10) for 14 directions, and values of the personal dose equivalent Hp(10) and the effective dose E for 6 directions of a person's orientation in the field were determined. The results of the measurements and calculations obtained within the EVIDOS project in workplace fields in nuclear installations in Europe, i.e., at Krümmel (boiling water reactor and transport cask), at Mol (Venus research reactor and fuel facility Belgonucléaire) and at Ringhals (pressurised reactor and transport cask) are presented.
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Affiliation(s)
- M Luszik-Bhadra
- Physikalisch-Technische Bundesanstalt, D-38116 Braunschweig, Germany.
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Luszik-Bhadra M, Bolognese-Milsztajn T, Boschung M, Coeck M, Curzio G, Derdau D, d'Errico F, Fiechtner A, Kyllönen JE, Lacoste V, Lievens B, Lindborg L, Lovefors Daun A, Reginatto M, Schuhmacher H, Tanner R, Vanhavere F. Summary of personal neutron dosemeter results obtained within the EVIDOS project. Radiat Prot Dosimetry 2007; 125:293-9. [PMID: 17449908 DOI: 10.1093/rpd/ncm190] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
Within the EC project EVIDOS ('Evaluation of Individual Dosimetry in Mixed Neutron and Photon Radiation Fields'), different types of active neutron personal dosemeters (and some passive ones) were tested in workplace fields at nuclear installations in Europe. The results of the measurements which have been performed up to now are summarised and compared to our currently best estimates of the personal dose equivalent Hp(10). Under- and over-readings by more than a factor of two for the same dosemeter in different workplace fields indicate that in most cases the use of field-specific correction factors is required.
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Affiliation(s)
- M Luszik-Bhadra
- Physikalisch-Technische Bundesanstalt, D-38116 Braunschweig, Germany.
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Luszik-Bhadra M, Bartlett D, Bolognese-Milsztajn T, Boschung M, Coeck M, Curzio G, d'Errico F, Fiechtner A, Lacoste V, Lindborg L, Reginatto M, Schuhmacher H, Tanner R, Vanhavere F. Characterisation of mixed neutron photon workplace fields at nuclear facilities by spectrometry (energy and direction) within the EVIDOS project. Radiat Prot Dosimetry 2007; 124:219-29. [PMID: 17890781 DOI: 10.1093/rpd/ncm419] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
Within the EC project EVIDOS, 17 different mixed neutron-photon workplace fields at nuclear facilities (boiling water reactor, pressurised water reactor, research reactor, fuel processing, storage of spent fuel) were characterised using conventional Bonner sphere spectrometry and newly developed direction spectrometers. The results of the analysis, using Bayesian parameter estimation methods and different unfolding codes, some of them especially adapted to simultaneously unfold energy and direction distributions of the neutron fluence, showed that neutron spectra differed strongly at the different places, both in energy and direction distribution. The implication of the results for the determination of reference values for radiation protection quantities (ambient dose equivalent, personal dose equivalent and effective dose) and the related uncertainties are discussed.
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Affiliation(s)
- M Luszik-Bhadra
- Physikalisch-Technische Bundesanstalt, Bundesallee 100, D-38116 Braunschweig, Germany.
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d'Errico F, Bartlett D, Bolognese-Milsztajn T, Boschung M, Coeck M, Curzio G, Fiechtner A, Kyllönen JE, Lacoste V, Lindborg L, Luszik-Bhadra M, Reginatto M, Schuhmacher H, Tanner R, Vanhavere F. Evaluation of individual dosimetry in mixed neutron and photon radiation fields (EVIDOS). Part I: Scope and methods of the project. Radiat Prot Dosimetry 2007; 125:275-80. [PMID: 17522043 DOI: 10.1093/rpd/ncm169] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
Supported by the European Commission, the EVIDOS project started in November 2001 with the broad goal of evaluating state of the art dosimetry techniques in representative workplaces of the nuclear industry. Seven European institutes joined efforts with end users at nuclear power plants, at fuel processing and reprocessing plants, and at transport and storage facilities. A comprehensive programme was devised to evaluate capabilities and limitations of standard and innovative personal dosemeters in relation to the mixed neutron-photon fields of concern to the nuclear industry. This paper describes the criteria behind the selection of dosimetry techniques and workplaces that were analysed, as well as the organisation of the measurement campaigns. Particular emphasis was placed on the evaluation of a variety of electronic personal dosemeters, either commercially available or previously developed by the partners. The estimates provided by these personal dosemeters were compared to reference values of dose equivalent quantities derived from spectrometry and fluence-to-dose equivalent conversion coefficients. Spectrometry was performed both with conventional multisphere and with some original instrumentation providing energy and direction resolution, based on silicon detectors and superheated drop detectors mounted on or in spherical moderators. The results were collected in a large, searchable database and are intended to be used in the harmonisation of dosimetric procedures for mixed radiation fields and for the approval of dosimetry services in Europe.
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Affiliation(s)
- F d'Errico
- Dipartimento di Ingegneria Meccanica, Nucleare e della Produzione, Università di Pisa, I-56126 Pisa, Italy.
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Slater G, Rice AJ, Tanner R, Sharpe K, Gore CJ, Jenkins DG, Hahn AG. Acute weight loss followed by an aggressive nutritional recovery strategy has little impact on on-water rowing performance. Br J Sports Med 2006; 40:55-9. [PMID: 16371492 PMCID: PMC2491923 DOI: 10.1136/bjsm.2005.019604] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
OBJECTIVES To assess the influence of moderate, acute weight loss on on-water rowing performance when aggressive nutritional recovery strategies were used in the two hours between weigh in and racing. METHODS Competitive rowers (n = 17) undertook three on-water 1800 m time trials under cool conditions (mean (SD) temperature 8.4 (2.0) degrees C), each separated by 48 hours. No weight limit was imposed for the first time trial--that is, unrestricted body mass (UNR1). However, one of the remaining two trials followed a 4% loss in body mass in the previous 24 hours (WT(-4%)). No weight limit was imposed for the other trial (UNR2). Aggressive nutritional recovery strategies (WT(-4%), 2.3 g/kg carbohydrate, 34 mg/kg Na+, and 28.4 ml/kg fluid; UNR, ad libitum) were used in the first 90 minutes of the two hours between weigh in and performance trials. RESULTS WT(-4%) had only a small and statistically non-significant effect on the on-water time trial performance (mean 1.0 second, 95% confidence interval (CI) -0.9 to 2.8; p = 0.29) compared with UNR. This was despite a significant decrease in plasma volume at the time of weigh in for WT(-4%) compared with UNR (-9.2%, 95% CI -12.8% to -5.6%; p<0.001). CONCLUSIONS Acute weight loss of up to 4% over 24 hours, when combined with aggressive nutritional recovery strategies, can be undertaken with minimal impact on on-water rowing performance, at least in cool conditions.
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Affiliation(s)
- G Slater
- Australian Institute of Sport, Canberra, ACT, Australia
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33
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Vanhavere F, Bartlett D, Bolognese-Milsztajn T, Boschung M, Coeck M, Curzio G, d'Errico F, Fiechtner A, Kyllönen J, Lacoste V, Lahaye T, Lindborg L, Luszik-Bhadra M, Molinos C, Muller H, Reginatto M, Schuhmacher H, Tanner R. Evaluation of individual monitoring in mixed neutron/photon fields: mid-term results from the EVIDOS project. Radiat Prot Dosimetry 2006; 120:263-7. [PMID: 16782978 DOI: 10.1093/rpd/ncj011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
EVIDOS is an EC sponsored project that aims at an evaluation and improvement of radiation protection dosimetry in mixed neutron/photon fields. This is performed through spectrometric and dosimetric investigations during different measurement campaigns in representative workplaces of the nuclear industry. The performance of routine and, in particular, novel personal dosemeters and survey instruments is tested in selected workplace fields. Reference values for the dose equivalent quantities, H(*)(10) and H(p)(10) and the effective dose E, are determined using different spectrometers that provide the energy distribution of the neutron fluence and using newly developed devices that determine the energy and directional distribution of the neutron fluence. The EVIDOS project has passed the mid-term, and three measurement campaigns have been performed. This paper will give an overview and some new results from the third campaign that was held in Mol (Belgium), around the research reactor VENUS and in the MOX producing plant of Belgonucléaire.
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Affiliation(s)
- F Vanhavere
- Studiecentrum voor Kernenergie--Centre d'étude de l'énergie nucléaire, B-2400 Mol, Belgium.
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Luszik-Bhadra M, Bartlett D, Boschung M, Coeck M, Curzio G, Derdau D, d'Errico F, Fiechtner A, Itié C, Kyllönen JE, Lacoste V, Lahaye T, Lindborg L, Molinos C, Reginatto M, Schuhmacher H, Tanner R, Vanhavere F. Electronic neutron personal dosemeters: their performance in mixed radiation fields in nuclear power plants. Radiat Prot Dosimetry 2006; 120:378-82. [PMID: 16644993 DOI: 10.1093/rpd/nci556] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
This work describes spectral distributions of neutrons obtained as function of energy and direction at four workplace fields at the Krümmel reactor in Germany. Values of personal dose equivalent H(p)(10) and effective dose E are determined for different directions of a person's orientation in these fields and readings of personal neutron dosemeters--especially electronic dosemeters--are discussed with respect to H(p)(10) and E.
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Affiliation(s)
- M Luszik-Bhadra
- Physikalisch-Technische Bundesanstalt, D-38116 Braunschweig, Germany.
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Tanner R, Abou-Zeid N, Glassbrook L, Phillips R, Stratford I, Jaffar M. 499 N(O)-(Substituted)-b-(2),4,5-tetramethyl-3,6-dioxo-1,4-cyclo-hexadinen-1-propa(noate) propanoamide: bioreductive delivery systems for selective delivery of therapeutic agents into solid tumours. EJC Suppl 2004. [DOI: 10.1016/s1359-6349(04)80507-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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36
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Bolognese-Milsztajn T, Bartlett D, Boschung M, Coeck M, Curzio G, d'Errico F, Fiechtner A, Giusti V, Gressier V, Kyllönen J, Lacoste V, Lindborg L, Luszik-Bhadra M, Molinos C, Pelcot G, Reginatto M, Schuhmacher H, Tanner R, Vanhavere F, Derdau D. Individual neutron monitoring in workplaces with mixed neutron/photon radiation. Radiat Prot Dosimetry 2004; 110:753-758. [PMID: 15353743 DOI: 10.1093/rpd/nch220] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
EVIDOS ('evaluation of individual dosimetry in mixed neutron and photon radiation fields') is an European Commission (EC)-sponsored project that aims at a significant improvement of radiation protection dosimetry in mixed neutron/photon fields via spectrometric and dosimetric investigations in representative workplaces of the nuclear industry. In particular, new spectrometry methods are developed that provide the energy and direction distribution of the neutron fluence from which the reference dosimetric quantities are derived and compared to the readings of dosemeters. The final results of the project will be a comprehensive set of spectrometric and dosimetric data for the workplaces and an analysis of the performance of dosemeters, including novel electronic dosemeters. This paper gives an overview of the project and focuses on the results from measurements performed in calibration fields with broad energy distributions (simulated workplace fields) and on the first results from workplaces in the nuclear industry, inside a boiling water reactor and around a spent fuel transport cask.
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Affiliation(s)
- T Bolognese-Milsztajn
- Institut de Radioprotection et de Sûreté Nucléaire, F-92265 Fontenay-aux-Roses, France.
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37
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Bax B, Carter PS, Lewis C, Guy AR, Bridges A, Tanner R, Pettman G, Mannix C, Culbert AA, Brown MJ, Smith DG, Reith AD. The structure of phosphorylated GSK-3beta complexed with a peptide, FRATtide, that inhibits beta-catenin phosphorylation. Structure 2001; 9:1143-52. [PMID: 11738041 DOI: 10.1016/s0969-2126(01)00679-7] [Citation(s) in RCA: 159] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
BACKGROUND Glycogen synthase kinase-3 (GSK-3) sequentially phosphorylates four serine residues on glycogen synthase (GS), in the sequence SxxxSxxxSxxx-SxxxS(p), by recognizing and phosphorylating the first serine in the sequence motif SxxxS(P) (where S(p) represents a phosphoserine). FRATtide (a peptide derived from a GSK-3 binding protein) binds to GSK-3 and blocks GSK-3 from interacting with Axin. This inhibits the Axin-dependent phosphorylation of beta-catenin by GSK-3. RESULTS Structures of uncomplexed Tyr216 phosphorylated GSK-3beta and of its complex with a peptide and a sulfate ion both show the activation loop adopting a conformation similar to that in the phosphorylated and active forms of the related kinases CDK2 and ERK2. The sulfate ion, adjacent to Val214 on the activation loop, represents the binding site for the phosphoserine residue on 'primed' substrates. The peptide FRATtide forms a helix-turn-helix motif in binding to the C-terminal lobe of the kinase domain; the FRATtide binding site is close to, but does not obstruct, the substrate binding channel of GSK-3. FRATtide (and FRAT1) does not inhibit the activity of GSK-3 toward GS. CONCLUSIONS The Axin binding site on GSK-3 presumably overlaps with that for FRATtide; its proximity to the active site explains how Axin may act as a scaffold protein promoting beta-catenin phosphorylation. Tyrosine 216 phosphorylation can induce an active conformation in the activation loop. Pre-phosphorylated substrate peptides can be modeled into the active site of the enzyme, with the P1 residue occupying a pocket partially formed by phosphotyrosine 216 and the P4 phosphoserine occupying the 'primed' binding site.
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Affiliation(s)
- B Bax
- Department of Structural Biology, GlaxoSmithKline Pharmaceuticals, Harlow, Essex CM19 5AD, United Kingdom.
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38
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Smith PH, Reynolds R, Weinberg J, Friedman T, Lemmon MT, Tanner R, Reid RJ, Marcialis RL, Bos BJ, Oquest C, Keller HU, Markiewicz WJ, Kramm R, Gliem F, Rueffer P. The MVACS Surface Stereo Imager on Mars Polar Lander. ACTA ACUST UNITED AC 2001. [DOI: 10.1029/1999je001116] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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39
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Keller HU, Hartwig H, Kramm R, Koschny D, Markiewicz WJ, Thomas N, Fernades M, Smith PH, Reynolds R, Lemmon MT, Weinberg J, Marcialis R, Tanner R, Boss BJ, Oquest C, Paige DA. The MVACS Robotic Arm Camera. ACTA ACUST UNITED AC 2001. [DOI: 10.1029/1999je001123] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Abstract
OBJECTIVE To measure the concentrations of nerve growth factor (NGF) in tissue biopsies taken from subjects with a normal bladder and from patients diagnosed to have idiopathic detrusor instability (associated with a reduction in the density of motor nerves), and to use an in vitro model to study the mechanisms of NGF expression. MATERIALS AND METHODS Biopsy specimens were obtained during endoscopic and open surgery from patients undergoing routine bladder surgery. The patients were divided into two categories based upon urodynamic characterization. The NGF content in samples from 11 normal bladders and seven idiopathic unstable bladders were measured using an enzyme-linked immunosorbent assay. The mechanisms influencing net NGF production were explored using detrusor cells in vitro. RESULTS The mean (SEM) NGF content was significantly higher in unstable tissues, at 0.96 (0.05) pg/microg protein, than in the normal bladder, at 0.53 (0.05) pg/microg protein. In the cell model, acetylcholine (10 micromol/L), noradrenaline (1 and 10 micromol/L) and ATP (1 micromol/L) caused a significant increase in net NGF production; acetylcholine at 1 micromol/L had no effect. Direct stimulation of protein kinase C (PKC) by phorbol ester (33 ng/mL) or elevation of cAMP using forskolin (10 micromol/L) increased NGF, suggesting that at least two intracellular pathways (PKC- and PKA-dependent) are involved. The expression of c-Fos was increased by phorbol 12-myristate 13-acetate added before NGF, suggesting that c-Fos may be involved in regulating NGF production. CONCLUSION These data suggest a role for NGF in the physiology and pathophysiology of the human bladder, and indicate some of the possible mechanisms which might regulate NGF production.
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Affiliation(s)
- R Tanner
- Department of Surgery, School of Surgical and Reproductive Sciences, The Medical School, University of Newcastle, Newcastle upon Tyne, UK
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41
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Reid RJ, Smith PH, Lemmon M, Tanner R, Burkland M, Wegryn E, Weinberg J, Marcialis R, Britt DT, Thomas N, Kramm R, Dummel A, Crowe D, Bos BJ, Bell JF, Rueffer P, Gliem F, Johnson JR, Maki JN, Herkenhoff KE, Singer RB. Imager for Mars Pathfinder (IMP) image calibration. ACTA ACUST UNITED AC 1999. [DOI: 10.1029/1998je900011] [Citation(s) in RCA: 66] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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42
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Tanner R. A low energy green hospital. Health Estate J 1997; 51:2, 4, 6-8. [PMID: 10169424] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
Abstract
This paper describes a unique project to monitor and evaluate a range of energy saving techniques and measures installed in a hospital in the North East of England. The aims of the project were: to test theoretical studies that had identified measures that could achieve savings in energy usage in hospitals to test the economic viability of the energy saving measures and determine whether they are suitable for replication in new, as well as existing hospitals to provide experience of energy saving techniques and measures in an operational hospital to provide a comprehensive database of information on how energy is used in hospitals The results from the project show that it is possible to significantly reduce the energy consumption in hospitals. Over the three year monitoring period, it is calculated that the hospital used an average of 39% less energy per annum than a comparable, conventional hospital. This energy saving also represents a reduction in CO2 emissions of 1900 tonnes per annum. The project has provided reliable data and information that has contributed to a much better understanding of how energy is used in hospitals.
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von Heeren F, Tanner R, Theurillat R, Thormann W. Determination of fluconazole in human plasma by micellar electrokinetic capillary chromatography with detection at 190 nm. J Chromatogr A 1996; 745:165-72. [PMID: 8843685 DOI: 10.1016/0021-9673(96)00189-6] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
The determination of fluconazole (Diflucan) in human plasma by micellar electrokinetic capillary chromatography (MECC) with on-column UV absorption detection at 190 nm from primary, deproteinized and extracted plasma samples is discussed. Direct injection of plain plasma or of the supernatant after protein precipitation with acetonitrile is shown to permit the determination of fluconazole drug levels of > 5 micrograms/ml only. With liquid-liquid extraction employing dichloromethane, the detection limit is about 1 microgram/ml. After extraction using disposable solid-phase C18 cartridges and 1 ml of plasma, however, drug levels as low as 100 ng/ml can be determined unambiguously. Calibration graphs between 0.125-25.0 micrograms/ml (seven data points) are shown to be linear, with a regression coefficient r > 0.999. for fluconazole plasma levels of 5 micrograms/ml, intra-day and inter-day imprecisions (n = 10) are about 2 and 5%, respectively. Using the same solid-phase extraction procedure, 44 fluconazole plasma levels that were determined by MECC are shown to agree well with those obtained by HPLC and elucidated pharmacokinetic data compare well with those found in the literature. The advantages of using MECC instead of HPLC for the determination of fluconazole plasma levels and pharmacokinetics are the high resolution efficiency, low-cost capillary columns and the small consumption of inexpensive and environmentally friendly chemicals.
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Affiliation(s)
- F von Heeren
- Department of Clinical Pharmacology, University of Bern, Switzerland
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44
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Tanner R. Strategic planning of healthcare facilities. Health Estate J 1995; 49:2-3. [PMID: 10143809] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
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45
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Tabrah FL, Tanner R, Vega R, Batkin S. Baromedicine today--rational uses of hyperbaric oxygen therapy. Hawaii Med J 1994; 53:112-5, 119. [PMID: 8045777] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Compressed air, and more recently hyperbaric oxygen, have been used and misused in medical treatment for more than 300 years. Advances in physiology have led to rational protocols for hyperbaric oxygen use. Hyperbaric oxygen will enhance wound healing by fibroblast and capillary proliferation, suppress infection, reduce edema, reverse CNS damage from carbon monoxide and cyanide poisoning, and reduce clostridial alpha toxins. Monoplace and multiplace chambers are used for treatment during which EKG and oxygen tissue monitoring, as well as hemodynamic and respiratory support, can be continued, iatrogenic air embolism and diving decompression sickness demand immediate treatment. Investigative uses of adjunct therapy for several other clinical problems include treatment of MS, acute spinal cord injuries, and acute MI. Specific indications agreed on by the Undersea and Hyperbaric Medicine Society are recognized by most third-party payers including Medicare, Champus, and HMSA. Hyperbaric medicine remains a fertile area for basic physiologic investigation and outcomes research.
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Affiliation(s)
- F L Tabrah
- Department of Physiology, University of Hawaii John A. Burns School of Medicine, Straub Clinic and Hospital, Inc
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46
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Paster BJ, Russell JB, Yang CM, Chow JM, Woese CR, Tanner R. Phylogeny of the ammonia-producing ruminal bacteria Peptostreptococcus anaerobius, Clostridium sticklandii, and Clostridium aminophilum sp. nov. Int J Syst Bacteriol 1993; 43:107-10. [PMID: 8427801 DOI: 10.1099/00207713-43-1-107] [Citation(s) in RCA: 84] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
In previous studies, gram-positive bacteria which grew rapidly with peptides or an amino acid as the sole energy source were isolated from bovine rumina. Three isolates, strains C, FT (T = type strain), and SR, were considered to be ecologically important since they produced up to 20-fold more ammonia than other ammonia-producing ruminal bacteria. On the basis of phenotypic criteria, the taxonomic position of these new isolates was uncertain. In this study, the 16S rRNA sequences of these isolates and related bacteria were determined to establish the phylogenetic positions of the organisms. The sequences of strains C, FT, and SR and reference strains of Peptostreptococcus anaerobius, Clostridium sticklandii, Clostridium coccoides, Clostridium aminovalericum, Acetomaculum ruminis, Clostridium leptum, Clostridium lituseburense, Clostridium acidiurici, and Clostridium barkeri were determined by using a modified Sanger dideoxy chain termination method. Strain C, a large coccus purported to belong to the genus Peptostreptococcus, was closely related to P. anaerobius, with a level of sequence similarity of 99.6%. Strain SR, a heat-resistant, short, rod-shaped organism, was closely related to C. sticklandii, with a level of sequence similarity of 99.9%. However, strain FT, a heat-resistant, pleomorphic, rod-shaped organism, was only distantly related to some clostridial species and P. anaerobius. On the basis of the sequence data, it was clear that strain FT warranted designation as a separate species. The closest known relative of strain FT was C. coccoides (level of similarity, only 90.6%). Additional strains that are phenotypically similar to strain FT were isolated in this study.(ABSTRACT TRUNCATED AT 250 WORDS)
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Affiliation(s)
- B J Paster
- Forsyth Dental Center, Boston, Massachusetts 02115
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47
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Abstract
Symptomatic involutional osteoporosis is a significant clinical problem. The prevalence of radiographic vertebral compression fractures (VCF) reached 26% in a rigorous population study of men and women more than 50 years old.1 However, only an estimated 8% of the total affected population actually seek medical attention.2-4 Investigations of effective medical therapy have been extensive, while sound studies of the physical therapeutic measures have been relatively few.5-10Pain and loss of functional mobility result from this disorder. Kyphosis, with or without vertebral compression fracture, is the major structural culprit that produces these disabling clinical problems. Spinal orthoses are used clinically for mechanical support and pain relief of osteoporosis.5,11-13 However, little research exists on the efficacy of orthotics in osteoporosis. This article provides a practical approach to guide the practitioner in orthotic selection for selected patients. New concepts presented may stimulate further research interest and more appropriate orthosis prescription. By focusing on level of fracture, biomechanical deficits, and physiatric team mangement, the end product can better satisfy the patient.
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Affiliation(s)
- R Tanner
- Baylor College of Medicine, Houston, TX
| | - M Mueller
- Baylor College of Medicine, Houston, TX
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Sax B, Dick F, Tanner R, Gosteli J. 4-Methyltrityl (Mtt): a new protecting group for the side chain protection of Asn and Gln in solid-phase peptide synthesis. Pept Res 1992; 5:245-6. [PMID: 1421811] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The trityl group was recently introduced for the protection of the side chain carboxamide function of asparagine and glutamine. The 4-methyltrityl (Mtt) group, a structural modification of trityl, is presented here and allows more rapid cleavage from the protected peptides. Procedures for the introduction of the group and comparative cleavage reactions are also presented.
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Affiliation(s)
- B Sax
- Bachem Feinchemikalien AG, Switzerland
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49
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Tanner A, Tanner R. Picking up the pieces--a counsellor's view of Hillsborough 1989. J R Soc Health 1991; 111:196-9. [PMID: 1795356 DOI: 10.1177/146642409111100511] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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50
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Mergler M, Nyfeler R, Gosteli J, Tanner R. Peptide synthesis by a combination of solid-phase and solution methods IV minimum-racemization coupling of nα-9-fluorenylmethyloxycarbonyl amino acids to alkoxy benzyl alcohol type resins. Tetrahedron Lett 1989. [DOI: 10.1016/s0040-4039(00)70666-6] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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