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Lépy MC, Thiam C, Anagnostakis M, Cosar C, de Blas A, Dikmen H, Duch MA, Galea R, Ganea ML, Hurtado S, Karfopoulos K, Luca A, Lutter G, Mitsios I, Persson H, Potiriadis C, Röttger S, Salpadimos N, Savva MI, Sima O, Thanh TT, Townson RW, Vargas A, Vasilopoulou T, Verheyen L, Vidmar T. A benchmark for Monte Carlo simulations in gamma-ray spectrometry Part II: True coincidence summing correction factors. Appl Radiat Isot 2024; 204:111109. [PMID: 38029636 DOI: 10.1016/j.apradiso.2023.111109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Revised: 10/31/2023] [Accepted: 11/07/2023] [Indexed: 12/01/2023]
Abstract
The goal of this study is to provide a benchmark for the use of Monte Carlo simulation when applied to coincidence summing corrections. The examples are based on simple geometries: two types of germanium detectors and four kinds of sources, to mimic eight typical measurement conditions. The coincidence corrective factors are computed for four radionuclides. The exercise input files and calculation results with practical recommendations are made available for new users on a dedicated webpage.
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Affiliation(s)
- M-C Lépy
- Université Paris-Saclay, CEA, List, Laboratoire National Henri Becquerel (LNE-LNHB), F-91120, Palaiseau, France.
| | - C Thiam
- Université Paris-Saclay, CEA, List, Laboratoire National Henri Becquerel (LNE-LNHB), F-91120, Palaiseau, France
| | - M Anagnostakis
- Nuclear Engineering Department, School of Mechanical Engineering, National Technical University of Athens, Iroon Polytechniou 9, 15780, Zografou, Athens, Greece
| | - C Cosar
- Horia Hulubei National Institute for R&D in Physics and Nuclear Engineering (IFIN-HH), 30 Reactorului Street, PO Box MG-6, Magurele, Ilfov County, RO-077125, Romania; Physics Department, University of Bucharest, 405 Atomistilor Str., Magurele, Ilfov County, RO-077125, Romania
| | - A de Blas
- Universitat Politècnica de Catalunya (UPC), Avda. Diagonal, 647, 08028, Barcelona, Spain
| | - H Dikmen
- TENMAK-NUKEN, Nuclear Energy Research Institute, Saray Mahallesi Atom Caddesi No:27, 06980 Kahramankazan, Ankara, Turkey
| | - M A Duch
- Universitat Politècnica de Catalunya (UPC), Avda. Diagonal, 647, 08028, Barcelona, Spain
| | - R Galea
- National Research Council of Canada, 1200 Montreal Road, Ottawa, ON, K1A0R6, Canada
| | - M L Ganea
- Horia Hulubei National Institute for R&D in Physics and Nuclear Engineering (IFIN-HH), 30 Reactorului Street, PO Box MG-6, Magurele, Ilfov County, RO-077125, Romania
| | - S Hurtado
- Dpto. Física Aplicada II, ETSA, Universidad de Sevilla, Avda. Reina Mercedes 2, 41012, Seville, Spain
| | - K Karfopoulos
- Greek Atomic Energy Commission (EEAE), Environmental Radioactivity Monitoring Unit, P.O. Box 60092, 153 10, Agia Paraskevi, Athens, Greece
| | - A Luca
- Horia Hulubei National Institute for R&D in Physics and Nuclear Engineering (IFIN-HH), 30 Reactorului Street, PO Box MG-6, Magurele, Ilfov County, RO-077125, Romania
| | - G Lutter
- European Commission, Joint Research Centre, Retieseweg 111, 2440, Geel, Belgium; Belgium and Department of Environmental Engineering, Technical University of Denmark, DTU, Risø Campus, 4000, Roskilde, Denmark
| | - I Mitsios
- Nuclear Engineering Department, School of Mechanical Engineering, National Technical University of Athens, Iroon Polytechniou 9, 15780, Zografou, Athens, Greece
| | - H Persson
- Mirion Technologies, Inc, 800 Research Parkway, Meriden, CT, 06450, USA
| | - C Potiriadis
- Greek Atomic Energy Commission (EEAE), Environmental Radioactivity Monitoring Unit, P.O. Box 60092, 153 10, Agia Paraskevi, Athens, Greece
| | - S Röttger
- Physikalisch-Technische Bundesanstalt (PTB), Bundesallee 100, 38116, Braunschweig, Germany
| | - N Salpadimos
- Greek Atomic Energy Commission (EEAE), Environmental Radioactivity Monitoring Unit, P.O. Box 60092, 153 10, Agia Paraskevi, Athens, Greece
| | - M I Savva
- INRASTES, NCSR "Demokritos", P.O. Box 60037, 15310 Agia Paraskevi, Greece
| | - O Sima
- Horia Hulubei National Institute for R&D in Physics and Nuclear Engineering (IFIN-HH), 30 Reactorului Street, PO Box MG-6, Magurele, Ilfov County, RO-077125, Romania; Physics Department, University of Bucharest, 405 Atomistilor Str., Magurele, Ilfov County, RO-077125, Romania
| | - T T Thanh
- VNUHCM-University of Science, 227, Nguyen Van Cu Street, District 5, Ho Chi Minh City, Viet Nam
| | - R W Townson
- National Research Council of Canada, 1200 Montreal Road, Ottawa, ON, K1A0R6, Canada
| | - A Vargas
- Universitat Politècnica de Catalunya (UPC), Avda. Diagonal, 647, 08028, Barcelona, Spain
| | - T Vasilopoulou
- INRASTES, NCSR "Demokritos", P.O. Box 60037, 15310 Agia Paraskevi, Greece
| | - L Verheyen
- SCK-CEN, Belgian Nuclear Research Centre, Boeretang 200, 2400, Mol, Belgium
| | - T Vidmar
- SCK-CEN, Belgian Nuclear Research Centre, Boeretang 200, 2400, Mol, Belgium
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Hurtado-Bermúdez SJ, Expósito JC, Villa-Alfageme M. Correlation of phytoplankton satellite observations and radiological doses in molluscs. MARINE POLLUTION BULLETIN 2021; 172:112911. [PMID: 34482251 DOI: 10.1016/j.marpolbul.2021.112911] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 08/22/2021] [Accepted: 08/23/2021] [Indexed: 06/13/2023]
Abstract
In this work data of salinity, temperature, suspended particulate matter (SPM), chlorophyll-a, and phytoplankton concentration in the Gibraltar Strait coast, in the confluence of the Mediterranean Sean and the Atlantic Ocean, were analyzed together with 210Po, 40K, 210Pb and 234Th activity concentration in different types of bivalve molluscs at the same time-period. The physicochemical parameters were evaluated using the Copernicus Marine Environment Monitoring Service (CMEMS) products based on satellite observations. A multivariate statistical analysis, including contrasted natural radioactivity contents, allowed the discrimination of bivalve molluscs from Atlantic and Mediterranean coasts. Additionally, a cluster analysis determined a highly significant negative correlation 210Po concentration in molluscs and phytoplankton concentration suggesting that phytoplankton concentration in the water column is a determinant factor to regulate 210Po concentration in those animals. These results introduce a useful tool to calculate the radiological doses in seafood from chlorophyll satellite image.
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Affiliation(s)
- S J Hurtado-Bermúdez
- Departamento de Física Aplicada II, Universidad de Sevilla, Av. Reina Mercedes 2, 41012 Sevilla, Spain.
| | - J C Expósito
- Universidad Pablo de Olavide, Carretera de Utrera, Km. 1, 41013 Sevilla, Spain
| | - M Villa-Alfageme
- Departamento de Física Aplicada II, Universidad de Sevilla, Av. Reina Mercedes 2, 41012 Sevilla, Spain
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