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Andrade EMR, Paixão L, Mendes BM, Fonseca TCF. RFPID: development and 3D-printing of a female physical phantom for whole-body counter. Biomed Phys Eng Express 2024; 10:045015. [PMID: 38697045 DOI: 10.1088/2057-1976/ad4650] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Accepted: 05/02/2024] [Indexed: 05/04/2024]
Abstract
Whole-body counters (WBC) are used in internal dosimetry forin vivomonitoring in radiation protection. The calibration processes of a WBC set-up include the measurement of a physical phantom filled with a certificate radioactive source that usually is referred to a standard set of individuals determined by the International Commission on Radiological Protection (ICRP). The aim of this study was to develop an anthropomorphic and anthropometric female physical phantom for the calibration of the WBC systems. The reference female computational phantom of the ICRP, now called RFPID (Reference Female Phantom for Internal Dosimetry) was printed using PLA filament and with an empty interior. The goal is to use the RFPID to reduce the uncertainties associated within vivomonitoring system. The images which generated the phantom were manipulated using ImageJ®, Amide®, GIMP®and the 3D Slicer®software. RFPID was split into several parts and printed using a 3D printer in order to print the whole-body phantom. The newly printed physical phantom RFPID was successfully fabricated, and it is suitable to mimic human tissue, anatomically similar to a human body i.e., size, shape, material composition, and density.
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Affiliation(s)
- E M R Andrade
- Nuclear Engineering Department, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
- Nuclear Technology Development Center, Belo Horizonte, Minas Gerais, Brazil
| | - L Paixão
- Anatomy and Imaging Department, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - B M Mendes
- Nuclear Technology Development Center, Belo Horizonte, Minas Gerais, Brazil
| | - T C F Fonseca
- Nuclear Engineering Department, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
- Nuclear Technology Development Center, Belo Horizonte, Minas Gerais, Brazil
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Ferreira CVG, Piedade JS, Prado MRD, Benavente J, Mendes BM, Paixão L, Fonseca TCF. Monte Carlo calculation of whole body counter efficiency factors for different computational phantoms. Appl Radiat Isot 2023; 194:110685. [PMID: 36758323 DOI: 10.1016/j.apradiso.2023.110685] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2022] [Revised: 12/28/2022] [Accepted: 01/15/2023] [Indexed: 02/09/2023]
Abstract
Individual monitoring can provide an estimate of the radioactivity present in the body of the exposed individuals. Periodic monitoring of occupationally exposed individuals is of great importance in case of accidental incorporation. Computational phantoms and Monte Carlo codes are often used to complement the calibration method of counting systems in internal dosimetry. Here, counting efficiency (CE) factors for a WBC system were calculated using MC simulations. The WBC system with a NaI(Tl) detector and the BOMAB phantom was modeled using three MC codes. After validation, the models were used to obtain CE values for a wide range of energies, and a CE curve was generated for the WBC system. To estimate the effects of anatomical differences on the measurement process, two anthropomorphic voxel phantoms were modeled using the VMC code. For the detector position with the highest CE value, the differences when comparing BOMAB results with the MaMP and Yale results were (-1 ± 6)% and (-1 ± 3)%, respectively. The results confirm that the use of the BOMAB phantom is a good approach for the calibration of the whole-body counter system. Measurements should be made at detector position with the highest CE values, and it is recommended to use the mean Monte Carlo CE values calculated in this work.
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Affiliation(s)
- Carlos V G Ferreira
- Universidade Federal de Minas Gerais, Escola de Engenharia - Departamento de Engenharia Nuclear, Programa de Pós-graduação em Ciências e Técnicas Nucleares, Av. Pres. Antônio Carlos 6627, Belo Horizonte MG, Brazil.
| | - Jennifer S Piedade
- Universidade Federal de Minas Gerais, Faculdade de Medicina - Departamento de Anatomia e Imagem, Av. Prof. Alfredo Balena 190, Belo Horizonte, MG, Brazil
| | - Max R D Prado
- Centro universitário de Belo Horizonte, Av. Mário Werneck 1685, Belo Horizonte MG, Brazil
| | - Jhonny Benavente
- Universidade Federal de Minas Gerais, Escola de Engenharia - Departamento de Engenharia Nuclear, Programa de Pós-graduação em Ciências e Técnicas Nucleares, Av. Pres. Antônio Carlos 6627, Belo Horizonte MG, Brazil
| | - Bruno M Mendes
- Centro de Desenvolvimento da Tecnologia Nuclear - CDTN/CNEN, Av. Pres. Antônio Carlos 6627, Belo Horizonte MG, Brazil
| | - Lucas Paixão
- Universidade Federal de Minas Gerais, Faculdade de Medicina - Departamento de Anatomia e Imagem, Av. Prof. Alfredo Balena 190, Belo Horizonte, MG, Brazil
| | - Telma C F Fonseca
- Universidade Federal de Minas Gerais, Escola de Engenharia - Departamento de Engenharia Nuclear, Programa de Pós-graduação em Ciências e Técnicas Nucleares, Av. Pres. Antônio Carlos 6627, Belo Horizonte MG, Brazil.
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Development of a physical head phantom using of a solid brain equivalent tissue for the calibration of the 18F-FDG internal monitoring system. Radiat Phys Chem Oxf Engl 1993 2019. [DOI: 10.1016/j.radphyschem.2018.08.037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Galeano D, Santos W, Alves M, Souza D, Carvalho A. Fluence-to-dose conversion coefficients based on the posture modification of Adult Male (AM) and Adult Female (AF) reference phantoms of ICRP 110. Radiat Phys Chem Oxf Engl 1993 2016. [DOI: 10.1016/j.radphyschem.2015.12.018] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Paiva FG, Oliveira AHD, Mendes BM, Pinto JR, Filho NDNA, Dantas BM, Dantas ALA, Silva TAD, Lacerda MADS, Fonseca TCF. Improvement of the WBC calibration of the Internal Dosimetry Laboratory of the CDTN/CNEN using the physical phantom BOMAB and MCNPX code. Appl Radiat Isot 2016; 117:123-127. [PMID: 26778764 DOI: 10.1016/j.apradiso.2015.12.059] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2015] [Revised: 12/23/2015] [Accepted: 12/29/2015] [Indexed: 10/22/2022]
Abstract
The Laboratory of Internal Dosimetry of the Center for Development of Nuclear Technology (LDI/CDTN) is responsible for routine internal monitoring of occupationally exposed individuals. The determination of photon emitting radionuclides in the human body requires calibration of the detector in specific counting geometries. The calibration process uses physical phantoms containing certified activities of the radionuclides of interest. The objective of this work was to obtain calibration efficiency curves of the Whole Body Counter in operation at the LDI/CDTN using a BOMAB physical phantom and Monte Carlo simulations.
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Affiliation(s)
- Fernanda Guerra Paiva
- Departamento de Engenharia Nuclear - Programa de Pós Graduação em Ciências e Técnicas Nucleares, Universidade Federal de Minas Gerais, Av. Pres. Antônio Carlos, 6627, 31270-901 Belo Horizonte, MG, Brazil
| | - Arno Heeren de Oliveira
- Departamento de Engenharia Nuclear - Programa de Pós Graduação em Ciências e Técnicas Nucleares, Universidade Federal de Minas Gerais, Av. Pres. Antônio Carlos, 6627, 31270-901 Belo Horizonte, MG, Brazil
| | - Bruno Melo Mendes
- Centro de Desenvolvimento da Tecnologia Nuclear - CDTN/CNEN, Av. Pres. Antônio Carlos, 6627, 31270-901 Belo Horizonte, MG, Brazil
| | - Jacqueline Rosária Pinto
- Centro de Desenvolvimento da Tecnologia Nuclear - CDTN/CNEN, Av. Pres. Antônio Carlos, 6627, 31270-901 Belo Horizonte, MG, Brazil
| | - Nelson do Nascimento A Filho
- Centro de Desenvolvimento da Tecnologia Nuclear - CDTN/CNEN, Av. Pres. Antônio Carlos, 6627, 31270-901 Belo Horizonte, MG, Brazil
| | - Bernardo Maranhão Dantas
- Instituto de Radioproteção e Dosimetria - IRD/CNEN, Av. Salvador Allende s/n-Barra da Tijuca, 22783-127 Rio de Janeiro, RJ, Brazil
| | - Ana Letícia A Dantas
- Instituto de Radioproteção e Dosimetria - IRD/CNEN, Av. Salvador Allende s/n-Barra da Tijuca, 22783-127 Rio de Janeiro, RJ, Brazil
| | - Teógenes Augusto da Silva
- Programa de Pós Graduação do Centro de Desenvolvimento da Tecnologia Nuclear - CDTN/CNEN, Av. Pres. Antônio Carlos, 6627, 31270-901 Belo Horizonte, MG Brazil
| | - Marco Aurélio de Sousa Lacerda
- Programa de Pós Graduação do Centro de Desenvolvimento da Tecnologia Nuclear - CDTN/CNEN, Av. Pres. Antônio Carlos, 6627, 31270-901 Belo Horizonte, MG Brazil
| | - Telma Cristina Ferreira Fonseca
- Programa de Pós Graduação do Centro de Desenvolvimento da Tecnologia Nuclear - CDTN/CNEN, Av. Pres. Antônio Carlos, 6627, 31270-901 Belo Horizonte, MG Brazil.
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Fonseca TCF, Bogaerts R, Hunt J, Vanhavere F. A methodology to develop computational phantoms with adjustable posture for WBC calibration. Phys Med Biol 2014; 59:6811-25. [DOI: 10.1088/0031-9155/59/22/6811] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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