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Narayan P. Technologies for retrospective radiation dosimetry. RADIATION PROTECTION DOSIMETRY 2024; 200:989-993. [PMID: 39016481 DOI: 10.1093/rpd/ncad319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Revised: 10/26/2023] [Accepted: 12/12/2023] [Indexed: 07/18/2024]
Abstract
Radiation dosimetry is an important task for assessing the biological damages created in human being due to ionising radiation exposure. Ionising radiation being invisible and beyond the perception of human natural sensors, the dosimetry equipments/systems are the utmost requirement for its measurement. Retrospective measurement of radiation doses is a challenging task as conventional radiation dosemeters are not available at the exposure site. The material/s in close proximity of exposed individual or individuals' biological samples may be used as retrospective radiation sensor for dosimetry purpose. Environment materials such as sand, bricks, ceramics, sand stones, quartz, feldspar, glasses and electronic chips have been utilised using TL (Thermoluminescence) techniques for retrospective gamma dose (min 10 cGy) measurement. Electron Spin Resonance techniques have been employed to human biological samples such as tooth enamel, bones, nails, hair, etc. and reported for dosimetry for ~20 cGy min dose measurement. Some commercial glasses have been found sensitive enough to measure the minimum gamma doses of the order of 100 cGy using TL techniques. For internal retrospective dosimetry, the radioactivity contamination assessment in food items, water, other edible product and ambient air are the prerequisites. The radioactivity concentration vis-à-vis their consumption rate may help in controlling the internal contamination and estimation of dose absorption in human body. Defence Laboratory, Jodhpur has been working extensively on the dosimetry techniques for external dose measurement using environmental material and developed portable contamination monitoring systems for food and water radioactivity measurement in the range of 50 Bq kg-1 to 1000 kBq kg-1 in 60 s measurement time. The recent research and development in the methodologies, equipments and systems undertaken towards capacity building and self-reliance in retrospective radiation dosimetry is reported in this paper.
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Affiliation(s)
- Pradeep Narayan
- Nuclear Radiation Management and Application Division, Defence Laboratory, Defence Research and Development Organization (DRDO), Jodhpur 342011, India
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2
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D'Oca MC, Collura G, Gagliardo C, Bartolotta A, Romeo M, d'Errico F, Marrale M. Improvement of neutron sensitivity for lithium formate EPR dosemeters: a Monte Carlo analysis. RADIATION PROTECTION DOSIMETRY 2023; 199:1591-1599. [PMID: 37721086 DOI: 10.1093/rpd/ncac268] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2022] [Revised: 11/14/2022] [Accepted: 11/19/2022] [Indexed: 09/19/2023]
Abstract
This work presents the computational analysis of the sensitivity improvements that could be achieved in lithium formate monohydrate (LFM) electron paramagnetic resonance (EPR) dosemeters exposed to neutron beams. Monte Carlo (MC) simulations were performed on LFM pellets exposed to neutron beams with different energy spectra at various depths inside a water phantom. Various computations were carried out by considering different enrichments of 6Li inside the LFM matrix as well as addition of different amounts of gadolinium oxide inside the pellet blend. The energy released per unit mass was calculated with the aim of predicting the increase in dose achievable by the addition of sensitizers inside the pellets. As expected, a larger amount of 6Li induces an increase of energy released because of the charged secondary particles (i.e. 3H ions and α-particles) produced after neutron capture. For small depths in water phantom and low-energy neutron spectra the dose increase due to 6Li enrichment is high (more than three orders of magnitude with respect to the case of with 7Li). In case of epithermal neutron beams the energy released in 6Li-enriched LFM compound is smaller but larger than in the case of fast neutron beams. On the other hand, the computational analysis evidenced that gadolinium is less effective than 6Li in improving neutron sensitivity of the LFM pellets. Discussion based on the features of MC transport code is provided. This result suggests that 6Li enrichment of LFM dosemeters would be more effective for neutron sensitivity improvement and these EPR dosemeters could be tested for dosimetric applications in Neutron Capture Therapy.
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Affiliation(s)
- Maria Cristina D'Oca
- Department of Physics and Chemistry 'Emilio Segrè', University of Palermo, Viale delle Scienze, Ed.18, I-90128 Palermo, Italy
- Istituto Nazionale di Fisica Nucleare (INFN), Catania Division, Via Santa Sofia, 64, 95123 Catania, Italy
| | - Giorgio Collura
- Department of Physics and Chemistry 'Emilio Segrè', University of Palermo, Viale delle Scienze, Ed.18, I-90128 Palermo, Italy
- Istituto Nazionale di Fisica Nucleare (INFN), Catania Division, Via Santa Sofia, 64, 95123 Catania, Italy
| | - Cesare Gagliardo
- Biomedicine, Neuroscience and Advanced Diagnostics, University of Palermo, 90127, Palermo, Italy
| | - Antonio Bartolotta
- Department of Physics and Chemistry 'Emilio Segrè', University of Palermo, Viale delle Scienze, Ed.18, I-90128 Palermo, Italy
- Istituto Nazionale di Fisica Nucleare (INFN), Catania Division, Via Santa Sofia, 64, 95123 Catania, Italy
| | - Mattia Romeo
- Department of Physics and Chemistry 'Emilio Segrè', University of Palermo, Viale delle Scienze, Ed.18, I-90128 Palermo, Italy
| | - Francesco d'Errico
- Dipartimento di Ingegneria Civile e Industriale, Università di Pisa, Largo Lucio Lazzarino, 2 56126 Pisa, Italy
- Magnetic Resonance Research Center, School of Medicine of Yale, 300 Cedar Street, PO Box 208043, New Haven, CT 06520-8043, USA
| | - Maurizio Marrale
- Department of Physics and Chemistry 'Emilio Segrè', University of Palermo, Viale delle Scienze, Ed.18, I-90128 Palermo, Italy
- Istituto Nazionale di Fisica Nucleare (INFN), Catania Division, Via Santa Sofia, 64, 95123 Catania, Italy
- ATeN Center, University of Palermo, Viale delle Scienze, Edificio 18, 90128 Palermo, Italy
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Abhyankar N, Agrawal A, Campbell J, Maly T, Shrestha P, Szalai V. Recent advances in microresonators and supporting instrumentation for electron paramagnetic resonance spectroscopy. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2022; 93:101101. [PMID: 36319314 PMCID: PMC9632321 DOI: 10.1063/5.0097853] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Accepted: 08/13/2022] [Indexed: 06/16/2023]
Abstract
Electron paramagnetic resonance (EPR) spectroscopy characterizes the magnetic properties of paramagnetic materials at the atomic and molecular levels. Resonators are an enabling technology of EPR spectroscopy. Microresonators, which are miniaturized versions of resonators, have advanced inductive-detection EPR spectroscopy of mass-limited samples. Here, we provide our perspective of the benefits and challenges associated with microresonator use for EPR spectroscopy. To begin, we classify the application space for microresonators and present the conceptual foundation for analysis of resonator sensitivity. We summarize previous work and provide insight into the design and fabrication of microresonators as well as detail the requirements and challenges that arise in incorporating microresonators into EPR spectrometer systems. Finally, we provide our perspective on current challenges and prospective fruitful directions.
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Affiliation(s)
| | - Amit Agrawal
- Physical Measurement Laboratory, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, USA
| | - Jason Campbell
- Physical Measurement Laboratory, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, USA
| | - Thorsten Maly
- Bridge12 Technologies, Inc., Natick, Massachusetts 01760, USA
| | | | - Veronika Szalai
- Physical Measurement Laboratory, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, USA
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4
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Çemberci M, Bıyık R, Fidan M, Tapramaz R. EPR Study of UV and gamma irradiated potassium persulfate: A Sensitive dosimeter. RADIAT MEAS 2021. [DOI: 10.1016/j.radmeas.2021.106616] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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5
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Radiation-induced free radicals from different milk powders and its possible use as radiation dosimeters. RADIOCHIM ACTA 2019. [DOI: 10.1515/ract-2019-3173] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Electron paramagnetic resonance spectroscopy (EPR) has been used to assess the free radical signal in different kinds of milk powder. Buffalos, colostrum’s, butter, milk cows, goat, camel and commercial milk before and after γ-ray irradiation. Moreover, un-irradiated milk samples exhibited weak signals, but upon increasing the absorbed doses EPR signal intensities were increased. The useful dose range was from 0.1 to 11 kGy. The results show that the stability of the signal of milk powder in relation to gamma irradiation was in order as follows: buffalo’s buttermilk; camel; cows; commercial milk; goat; buffalo’s; and colostrum milk. This study was recommended to use EPR as a new technique in an evaluation, quality control of dairy products and food irradiation applications. These milk powders undergo the influence of γ-rays can be applied as radiation dosimeters. Moreover, it can be used in food preservation, food irradiation processing, medical sterilization and water treating.
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Sellwood EL, Guralnik B, Kook M, Prasad AK, Sohbati R, Hippe K, Wallinga J, Jain M. Optical bleaching front in bedrock revealed by spatially-resolved infrared photoluminescence. Sci Rep 2019; 9:2611. [PMID: 30796261 PMCID: PMC6385230 DOI: 10.1038/s41598-019-38815-0] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2018] [Accepted: 01/09/2019] [Indexed: 11/15/2022] Open
Abstract
Optically stimulated luminescence (OSL) dating of sediment, based on the accumulation of trapped charge in natural crystals since their last exposure to daylight, has revolutionised our understanding of the late Quaternary period. Recently, a complementary technique called luminescence rock surface dating (RSD), which uses differential spatial eviction of trapped charges in rocks exposed to daylight, has been developed to derive exposure and burial ages, and hard-rock erosion rates. In its current form, the RSD technique suffers from labour intensive sample preparation, uncertainties in the depth and dose rate estimates, and poor resolution of the luminescence-depth profile. Here, we develop a novel, 2D luminescence imaging technique for RSD of large rock slabs (3 × 5 cm) to overcome these challenges. We utilize the recently discovered infrared photoluminescence (IRPL) signal for direct, non-destructive imaging of the luminescence-depth profile in a sub-aerially exposed granitic rock, with an unprecedented spatial resolution of ~140 µm. We further establish a correlation between luminescence and geochemistry using micro X-ray fluorescence (µXRF) spectroscopy. Our study promises a substantial advancement in luminescence imaging and paves the path towards novel applications using 2D dating, micro-dosimetry in mixed composition samples, and portable instrumentation for in-situ luminescence measurements.
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Affiliation(s)
- E L Sellwood
- Soil Geography and Landscape group & Netherlands Centre for Luminescence dating, Wageningen University, 6708PB, Wageningen, The Netherlands. .,Centre for Nuclear Technologies, Technical University of Denmark, DK, 4000, Roskilde, Denmark. .,The Nordic Laboratory for Luminescence Dating, Department of Geoscience, Aarhus University, DK, 4000, Roskilde, Denmark.
| | - B Guralnik
- Soil Geography and Landscape group & Netherlands Centre for Luminescence dating, Wageningen University, 6708PB, Wageningen, The Netherlands.,The Nordic Laboratory for Luminescence Dating, Department of Geoscience, Aarhus University, DK, 4000, Roskilde, Denmark.,CAPRES A/S & DTU Nanotech, Diplomvej 373, 2800 Kgs, Lyngby, Denmark
| | - M Kook
- Centre for Nuclear Technologies, Technical University of Denmark, DK, 4000, Roskilde, Denmark
| | - A K Prasad
- Centre for Nuclear Technologies, Technical University of Denmark, DK, 4000, Roskilde, Denmark
| | - R Sohbati
- Centre for Nuclear Technologies, Technical University of Denmark, DK, 4000, Roskilde, Denmark
| | - K Hippe
- Laboratory of Ion Beam Physics, 8093, Zürich, Switzerland.,Institute of Geological Sciences, Freie Universität Berlin, 12249, Berlin, Germany
| | - J Wallinga
- Soil Geography and Landscape group & Netherlands Centre for Luminescence dating, Wageningen University, 6708PB, Wageningen, The Netherlands
| | - M Jain
- Centre for Nuclear Technologies, Technical University of Denmark, DK, 4000, Roskilde, Denmark
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Marrale M, Abbene L, d'Errico F, Gallo S, Longo A, Panzeca S, Tana L, Tranchina L, Principato F. Characterization of the ESR response of alanine dosimeters to low-energy Cu-target X-tube photons. RADIAT MEAS 2017. [DOI: 10.1016/j.radmeas.2017.03.009] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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8
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Bailiff I, Sholom S, McKeever S. Retrospective and emergency dosimetry in response to radiological incidents and nuclear mass-casualty events: A review. RADIAT MEAS 2016. [DOI: 10.1016/j.radmeas.2016.09.004] [Citation(s) in RCA: 56] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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9
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Comparison of EPR response of alanine and Gd₂O₃-alanine dosimeters exposed to TRIGA Mainz reactor. Appl Radiat Isot 2015; 106:116-20. [PMID: 26315099 DOI: 10.1016/j.apradiso.2015.08.016] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2015] [Revised: 07/25/2015] [Accepted: 08/14/2015] [Indexed: 11/24/2022]
Abstract
In this work we report some preliminary results regarding the analysis of electron paramagnetic resonance (EPR) response of alanine pellets and alanine pellets added with gadolinium used for dosimetry at the TRIGA research reactor in Mainz, Germany. Two set-ups were evaluated: irradiation inside PMMA phantom and irradiation inside boric acid phantom. We observed that the presence of Gd2O3 inside alanine pellets increases the EPR signal by a factor of 3.45 and 1.24 in case of PMMA and boric acid phantoms, respectively. We can conclude that in the case of neutron beam with a predominant thermal neutron component the addition of gadolinium oxide can significantly improve neutron sensitivity of alanine pellets. Monte Carlo (MC) simulations of both response of alanine and Gd-added alanine pellets with FLUKA code were performed and a good agreement was achieved for pure alanine dosimeters. For Gd2O3-alanine deviations between MC simulations and experimental data were observed and discussed.
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10
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Wang L, Wang X, Zhang W, Zhang H, Ruan S, Jiao L. Determining Dosimetric Properties and Lowest Detectable Dose of Fingernail Clippings from their Electron Paramagnetic Resonance Signal. HEALTH PHYSICS 2015; 109:10-14. [PMID: 26011494 DOI: 10.1097/hp.0000000000000277] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The purpose of this study was to investigate the dosimetric properties and the lowest detectable dose of fingernails from their electron paramagnetic resonance signal. Fingernail clippings from 50 healthy individuals were collected, rinsed in water, and irradiated with (137)Cs gamma rays. Next, their electron paramagnetic resonance spectra were measured before and after exposure. The radiation-induced signal from the irradiated fingernails was relatively stable even after 68 d. Further, the intensity of the radiation-induced signal increased with progressive increases in the dose until saturation, while the background signal from the irradiated fingernails increased only gradually with time. The lowest detectable dose of the irradiated fingernails was 2 Gy. On the basis of these results, it can be concluded that the effect of the intrinsic signal must be taken into account during dose reconstruction. This electron paramagnetic resonance assessment method should be useful for the rapid screening of irradiated populations after nuclear accidents.
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Affiliation(s)
- Liang Wang
- *Institute of Radiation Medicine, Chinese Academy of Medical Sciences/Peking Union Medical College, 238 Baidi Road, Nankai District, Tianjin 300192, P.R. China
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11
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Study of the response of phenol compounds exposed to thermal neutrons beams for Electron Paramagnetic Resonance dosimetry. RADIAT MEAS 2015. [DOI: 10.1016/j.radmeas.2015.02.019] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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12
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Mikou M, Ghosne N, El Baydaoui R, Zirari Z, Kuntz F. Performance characteristics of the EPR dosimetry system with table sugar in radiotherapy applications. Appl Radiat Isot 2015; 99:1-4. [PMID: 25698642 DOI: 10.1016/j.apradiso.2015.02.010] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2013] [Revised: 01/10/2015] [Accepted: 02/09/2015] [Indexed: 10/24/2022]
Abstract
Performance characteristics of the megavoltage photon dose measurements with EPR and table sugar were analyzed. An advantage of sugar as a dosimetric material is its tissue equivalency. The minimal detectable dose was found to be 1.5Gy for both the 6 and 18MV photons. The dose response curves are linear up to at least 20Gy. The energy dependence of the dose response in the megavoltage energy range is very weak and probably statistically insignificant. Reproducibility of measurements of various doses in this range performed with the peak-to-peak and double-integral methods is reported. The method can be used in real-time dosimetry in radiation therapy.
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Affiliation(s)
- M Mikou
- Laboratoire d'Analyse des Systèmes et de Traitement de l'Information, Equipe: Spectroscopie et Dosimétrie, Univ Hassan 1, FST, B.P 577, Settat, Morocco.
| | - N Ghosne
- University Hospital Ibn Rochd, Casablanca, Morocco
| | - R El Baydaoui
- Laboratoire d'Analyse des Systèmes et de Traitement de l'Information, Equipe: Spectroscopie et Dosimétrie, Univ Hassan 1, FST, B.P 577, Settat, Morocco
| | - Z Zirari
- Laboratoire d'Analyse des Systèmes et de Traitement de l'Information, Equipe: Spectroscopie et Dosimétrie, Univ Hassan 1, FST, B.P 577, Settat, Morocco
| | - F Kuntz
- Centre de Ressources Technologiques Aérial, Illkirch, France
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13
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Marrale M, Longo A, Barbon A, Brustolon M, Brai M. Radical distributions in ammonium tartrate single crystals exposed to photon and neutron beams. RADIATION PROTECTION DOSIMETRY 2014; 161:398-402. [PMID: 24591730 DOI: 10.1093/rpd/ncu033] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
The radiation therapy carried out by means of heavy charged particles (such as carbon ions) and neutrons is rapidly becoming widespread worldwide. The success of these radiation therapies relies on the high density of energy released by these particles or by secondary particles produced after primary interaction with matter. The biological damages produced by ionising radiations in tissues and cells depend more properly on the energy released per unit pathlength, which is the linear energy transfer and which determines the radiation quality. To improve the therapy effectiveness, it is necessary to grasp the mechanisms of free radical production and distribution after irradiation with these particles when compared with the photon beams. In this work some preliminary results on the analysis of the spatial distributions of the free radicals produced after exposure of ammonium tartrate crystals to various radiation beams ((60)Co gamma photons and thermal neutrons) were reported. Electron spin resonance analyses were performed by the electron spin echo technique, which allows the determination of local spin concentrations and by double electron-electron resonance technique, which is able to measure the spatial distance distribution (range 1.5-8 nm) among pairs of radicals in solids. The results of these analyses are discussed on the basis of the different distributions of free radicals produced by the two different radiation beams used.
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Affiliation(s)
- M Marrale
- Dipartimento di Fisica e Chimica, Università di Palermo, Viale delle Scienze, Ed.18, I-90128 Palermo, Italy Gruppo V, INFN, Sezione di Catania, Catania, Italy
| | - A Longo
- Dipartimento di Fisica e Chimica, Università di Palermo, Viale delle Scienze, Ed.18, I-90128 Palermo, Italy Gruppo V, INFN, Sezione di Catania, Catania, Italy
| | - A Barbon
- Dipartimento di Scienze Chimiche, Università di Padova, Via F. Marzolo 1, 35131 Padova, Italy Sezione di Padova Istituto Nazionale di Fisica Nucleare, Via Marzolo 8, 35131 Padova, Italy
| | - M Brustolon
- Dipartimento di Scienze Chimiche, Università di Padova, Via F. Marzolo 1, 35131 Padova, Italy Sezione di Padova Istituto Nazionale di Fisica Nucleare, Via Marzolo 8, 35131 Padova, Italy
| | - M Brai
- Dipartimento di Fisica e Chimica, Università di Palermo, Viale delle Scienze, Ed.18, I-90128 Palermo, Italy Gruppo V, INFN, Sezione di Catania, Catania, Italy
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Marrale M, Longo A, Brai M, Barbon A, Brustolon M. Discrimination of Radiation Quality Through Second Harmonic Out-of-Phase cw-ESR Detection. Radiat Res 2014; 181:184-92. [DOI: 10.1667/rr13436.1] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- Maurizio Marrale
- Dipartimento di Fisica e Chimica, Università di Palermo, Viale delle Scienze, Edificio 18, 90128 Palermo, Italy and Gruppo V INFN Sezione di Catania, Via Santa Sofia, 64, Catania, 95123, Italy
| | - Anna Longo
- Dipartimento di Fisica e Chimica, Università di Palermo, Viale delle Scienze, Edificio 18, 90128 Palermo, Italy and Gruppo V INFN Sezione di Catania, Via Santa Sofia, 64, Catania, 95123, Italy
| | - Maria Brai
- Dipartimento di Fisica e Chimica, Università di Palermo, Viale delle Scienze, Edificio 18, 90128 Palermo, Italy and Gruppo V INFN Sezione di Catania, Via Santa Sofia, 64, Catania, 95123, Italy
| | - Antonio Barbon
- Dipartimento di Scienze Chimiche, Università di Padova, Via Marzolo 1, 35131 Padova, Italy, and Gruppo V INFN Sezione di Padova, Via Marzolo, 8, Padova, 35131, Italy
| | - Marina Brustolon
- Dipartimento di Scienze Chimiche, Università di Padova, Via Marzolo 1, 35131 Padova, Italy, and Gruppo V INFN Sezione di Padova, Via Marzolo, 8, Padova, 35131, Italy
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15
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Jiang LH, Zhang YL, Gong XM, Pang R, Zhang S, Li CY, Su Q. LiSr4(BO3)3:Ce3+ phosphor as a new material for ESR dosimetry. Appl Radiat Isot 2013; 84:66-9. [PMID: 24321766 DOI: 10.1016/j.apradiso.2013.11.029] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2013] [Revised: 09/09/2013] [Accepted: 10/31/2013] [Indexed: 11/28/2022]
Abstract
LiSr4(BO3)3:0.01Ce(3+) phosphor was investigated to assess its potential as a material for measurements of radiotherapeutic doses with electron spin resonance (ESR). The ESR spectrum of the phosphor irradiated with (60)Co features five ESR signals. An isochronal annealing experiment has shown that the strongest of these signals is associated with the same trap center as the 473 K peak on the TL glow curve of this material. The dose-response is linear in the studied range from 0.89 to 90.30 Gy. Fading of the signal was also investigated.
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Affiliation(s)
- L H Jiang
- State Key Laboratory of Application of Rare Earth Resources, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
| | - Y L Zhang
- Ionizing Radiation Division, National Institute of Metrology, Beijing 110000, China
| | - X M Gong
- Ionizing Radiation Division, National Institute of Metrology, Beijing 110000, China
| | - R Pang
- State Key Laboratory of Application of Rare Earth Resources, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
| | - S Zhang
- State Key Laboratory of Application of Rare Earth Resources, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
| | - C Y Li
- State Key Laboratory of Application of Rare Earth Resources, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China.
| | - Q Su
- State Key Laboratory of Application of Rare Earth Resources, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China; State Key Laboratory of Optoelectronic Materials and Technology, School of Chemistry and Chemical Engineering Department, Sun Yat-sen University, Guangzhou 510275, China
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16
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Eaton SS, Eaton GR. The world as viewed by and with unpaired electrons. JOURNAL OF MAGNETIC RESONANCE (SAN DIEGO, CALIF. : 1997) 2012; 223:151-63. [PMID: 22975244 PMCID: PMC3496796 DOI: 10.1016/j.jmr.2012.07.025] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2012] [Revised: 07/26/2012] [Accepted: 07/27/2012] [Indexed: 06/01/2023]
Abstract
Recent advances in electron paramagnetic resonance (EPR) include capabilities for applications to areas as diverse as archeology, beer shelf life, biological structure, dosimetry, in vivo imaging, molecular magnets, and quantum computing. Enabling technologies include multifrequency continuous wave, pulsed, and rapid scan EPR. Interpretation is enhanced by increasingly powerful computational models.
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Affiliation(s)
- Sandra S Eaton
- Department of Chemistry and Biochemistry, University of Denver, Denver, CO 80208, USA
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Marrale M, Longo A, Spanò M, Bartolotta A, D'Oca MC, Brai M. Sensitivity of Alanine Dosimeters with Gadolinium Exposed to 6 MV Photons at Clinical Doses. Radiat Res 2011; 176:821-6. [DOI: 10.1667/rr2256.1] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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18
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Marrale M, Longo A, Brai M, Barbon A, Brustolon M, Fattibene P. Pulsed EPR analysis of tooth enamel samples exposed to UV and γ-radiations. RADIAT MEAS 2011. [DOI: 10.1016/j.radmeas.2011.05.020] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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19
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Spasojević I. Free radicals and antioxidants at a glance using EPR spectroscopy. Crit Rev Clin Lab Sci 2011; 48:114-42. [DOI: 10.3109/10408363.2011.591772] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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20
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Zoleo A, Bortolussi C, Brustolon M. Echo detected EPR as a tool for detecting radiation-induced defect signals in pottery. RADIAT MEAS 2011. [DOI: 10.1016/j.radmeas.2011.06.012] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Watch glasses exposed to 6 MV photons and 10 MeV electrons analysed by means of ESR technique: A preliminary study. RADIAT MEAS 2011. [DOI: 10.1016/j.radmeas.2011.05.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Fattibene P, Callens F. EPR dosimetry with tooth enamel: A review. Appl Radiat Isot 2010; 68:2033-116. [PMID: 20599388 DOI: 10.1016/j.apradiso.2010.05.016] [Citation(s) in RCA: 123] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2010] [Accepted: 05/09/2010] [Indexed: 11/30/2022]
Abstract
When tooth enamel is exposed to ionizing radiation, radicals are formed, which can be detected using electron paramagnetic resonance (EPR) techniques. EPR dosimetry using tooth enamel is based on the (presumed) correlation between the intensity or amplitude of some of the radiation-induced signals with the dose absorbed in the enamel. In the present paper a critical review is given of this widely applied dosimetric method. The first part of the paper is fairly fundamental and deals with the main properties of tooth enamel and some of its model systems (e.g., synthetic apatites). Considerable attention is also paid to the numerous radiation-induced and native EPR signals and the radicals responsible for them. The relevant methods for EPR detection, identification and spectrum analyzing are reviewed from a general point of view. Finally, the needs for solid-state modelling and studies of the linearity of the dose response are investigated. The second part is devoted to the practical implementation of EPR dosimetry using enamel. It concerns specific problems of preparation of samples, their irradiation and spectrum acquisition. It also describes how the dosimetric signal intensity and dose can be retrieved from the EPR spectra. Special attention is paid to the energy dependence of the EPR response and to sources of uncertainties. Results of and problems encountered in international intercomparisons and epidemiological studies are also dealt with. In the final section the future of EPR dosimetry with tooth enamel is analyzed.
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Affiliation(s)
- Paola Fattibene
- Istituto Superiore di Sanità, Department of Technology and Health, Viale Regina Elena, Rome, Italy.
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Ranjbar AH, Aliabadi R, Amraei R, Tabasi M, Mirjalily G. ESR response of bulk samples of clear fused quartz (CFQ) material to high doses from 10 MeV electrons: its possible application for radiation processing and medical sterilization. Appl Radiat Isot 2009; 67:1023-6. [PMID: 19230695 DOI: 10.1016/j.apradiso.2009.01.003] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2008] [Revised: 09/13/2008] [Accepted: 01/08/2009] [Indexed: 11/19/2022]
Abstract
Clear fuse quartz (CFQ) could be a good candidate for dose measurements in the radiation processing of food material and in the sterilization of disposable medical and pharmaceutical products. In this study, bulk samples of CFQ materials were exposed to 10 MeV electrons at doses between 5-15 and 25-35 kGy; the dose ranges normally used for processing and sterilization. After irradiation, the samples were subjected to electron spin resonance analysis to test the intensity of their signal against the applied doses. The reproducibility of dose curve of the material to 10 MeV electrons was also studied, in which the dosed samples were annealed at 800 degrees C for 20 min and reused for further dose curve reproducibility investigation. The dose response curves of the reused samples showed a good linearity between the absorbed dose and the ESR intensity of the signals. They also indicated that the ESR intensity in the dose response curve, in both dose ranges, decreased by approximately 37% for the first reuse process and approximately 41% for the second reuse process of the samples in comparison to the first measurement. The thermal fading of the cylindrical samples of the CFQ, at room temperature, showed a sharp decay of approximately 20% over a period of 15 days, after which the decay-rate was negligible for a measured period of 60 days.
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Affiliation(s)
- A H Ranjbar
- Physics Department, Faculty of Science, Shahid Bahonar University of Kerman, Kerman, Iran.
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Ranjbar A, Randle K. Hyper pure quartz as a promising material for retrospective and radiation processing dosimetry using ESR technique. Appl Radiat Isot 2008; 66:1240-4. [DOI: 10.1016/j.apradiso.2008.01.016] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2007] [Revised: 01/16/2008] [Accepted: 01/30/2008] [Indexed: 11/25/2022]
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Characterization, stability, and origin of natural radiation-induced defects in the biogenic calcite of Belemnitella americana from the Upper Cretaceous: An electron paramagnetic resonance study. Radiat Phys Chem Oxf Engl 1993 2008. [DOI: 10.1016/j.radphyschem.2007.08.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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