Calibration of the LDI/CDTN Whole Body Counter us-ing two physical phantoms
The Laboratory of Internal Dosimetry of the Center for Development of Nuclear Technology (LDI/CDTN) is responsible for routine monitoring of internal contamination of the Individuals Occupationally Exposed (IOEs) at the Unit for Research and Production of Radiopharmaceuticals (UPPR/CDTN), the Resear...
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| Language: | English |
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Brazilian Radiation Protection Society (Sociedade Brasileira de Proteção Radiológica, SBPR)
2017-10-01
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| Series: | Brazilian Journal of Radiation Sciences |
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| Online Access: | https://bjrs.org.br/revista/index.php/REVISTA/article/view/252 |
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| author | Fernanda Guerra Paiva Bruno Melo Mendes Marco Aurélio Lacerda Jaqueline Rosária Pinto Sônia Prates Nelson Nascimento Filho Bernardo Maranhão Dantas Ana Letícia Dantas Telma Cristina Ferreira Fonseca Teógenes Augusto da Silva |
| author_facet | Fernanda Guerra Paiva Bruno Melo Mendes Marco Aurélio Lacerda Jaqueline Rosária Pinto Sônia Prates Nelson Nascimento Filho Bernardo Maranhão Dantas Ana Letícia Dantas Telma Cristina Ferreira Fonseca Teógenes Augusto da Silva |
| author_sort | Fernanda Guerra Paiva |
| collection | DOAJ |
| description | The Laboratory of Internal Dosimetry of the Center for Development of Nuclear Technology (LDI/CDTN) is responsible for routine monitoring of internal contamination of the Individuals Occupationally Exposed (IOEs) at the Unit for Research and Production of Radiopharmaceuticals (UPPR/CDTN), the Research Reactor TRIGA-IPR-R1/CDTN and other workplaces of the institute where there is a risk of accidental intakes. Additionally, LDI supports the Institute of Radiation Protection and Dosimetry (IRD/CNEN) to attend radiological emergencies. The determination of photon emitting radionuclides in the human body requires the use of calibration techniques in different counting geometries for converting the count rates into activity in organs and tissues. This paper presents and discusses the calibration of the LDI/CDTN Whole Body Counter (WBC) using a standard BOMAB phantom (Bottle Mannequin Absorber) compared to a home-made phantom produced with Polyethylene Terephthalate bottles (PET). Initially, the BOMAB was filled with a cocktail containing 60Co, 137Cs and 133Ba. The phantom was counted at the LDI whole body counter and an Efficiency x Energy curve was obtained. Subsequently the PET-BOMAB was filled with the same standard source and a second curve was determined. The efficiency values in each region of interest as well as the shape of both curves were found to be equivalent. The results validate the use of the PET-BOMAB for the calibration of whole body geometry applied to the measurement of high energy radionuclides in the energy region evaluated in this work. |
| format | Article |
| id | doaj-art-5d5c30f33e964ef7b36ee49ad198eae9 |
| institution | DOAJ |
| issn | 2319-0612 |
| language | English |
| publishDate | 2017-10-01 |
| publisher | Brazilian Radiation Protection Society (Sociedade Brasileira de Proteção Radiológica, SBPR) |
| record_format | Article |
| series | Brazilian Journal of Radiation Sciences |
| spelling | doaj-art-5d5c30f33e964ef7b36ee49ad198eae92025-08-20T03:12:20ZengBrazilian Radiation Protection Society (Sociedade Brasileira de Proteção Radiológica, SBPR)Brazilian Journal of Radiation Sciences2319-06122017-10-015310.15392/bjrs.v5i3.252191Calibration of the LDI/CDTN Whole Body Counter us-ing two physical phantomsFernanda Guerra Paiva0Bruno Melo MendesMarco Aurélio LacerdaJaqueline Rosária PintoSônia PratesNelson Nascimento FilhoBernardo Maranhão DantasAna Letícia DantasTelma Cristina Ferreira FonsecaTeógenes Augusto da SilvaFederal University of Minas GeraisThe Laboratory of Internal Dosimetry of the Center for Development of Nuclear Technology (LDI/CDTN) is responsible for routine monitoring of internal contamination of the Individuals Occupationally Exposed (IOEs) at the Unit for Research and Production of Radiopharmaceuticals (UPPR/CDTN), the Research Reactor TRIGA-IPR-R1/CDTN and other workplaces of the institute where there is a risk of accidental intakes. Additionally, LDI supports the Institute of Radiation Protection and Dosimetry (IRD/CNEN) to attend radiological emergencies. The determination of photon emitting radionuclides in the human body requires the use of calibration techniques in different counting geometries for converting the count rates into activity in organs and tissues. This paper presents and discusses the calibration of the LDI/CDTN Whole Body Counter (WBC) using a standard BOMAB phantom (Bottle Mannequin Absorber) compared to a home-made phantom produced with Polyethylene Terephthalate bottles (PET). Initially, the BOMAB was filled with a cocktail containing 60Co, 137Cs and 133Ba. The phantom was counted at the LDI whole body counter and an Efficiency x Energy curve was obtained. Subsequently the PET-BOMAB was filled with the same standard source and a second curve was determined. The efficiency values in each region of interest as well as the shape of both curves were found to be equivalent. The results validate the use of the PET-BOMAB for the calibration of whole body geometry applied to the measurement of high energy radionuclides in the energy region evaluated in this work.https://bjrs.org.br/revista/index.php/REVISTA/article/view/252internal dosimetrywhole body counterbomabradioprotection. |
| spellingShingle | Fernanda Guerra Paiva Bruno Melo Mendes Marco Aurélio Lacerda Jaqueline Rosária Pinto Sônia Prates Nelson Nascimento Filho Bernardo Maranhão Dantas Ana Letícia Dantas Telma Cristina Ferreira Fonseca Teógenes Augusto da Silva Calibration of the LDI/CDTN Whole Body Counter us-ing two physical phantoms Brazilian Journal of Radiation Sciences internal dosimetry whole body counter bomab radioprotection. |
| title | Calibration of the LDI/CDTN Whole Body Counter us-ing two physical phantoms |
| title_full | Calibration of the LDI/CDTN Whole Body Counter us-ing two physical phantoms |
| title_fullStr | Calibration of the LDI/CDTN Whole Body Counter us-ing two physical phantoms |
| title_full_unstemmed | Calibration of the LDI/CDTN Whole Body Counter us-ing two physical phantoms |
| title_short | Calibration of the LDI/CDTN Whole Body Counter us-ing two physical phantoms |
| title_sort | calibration of the ldi cdtn whole body counter us ing two physical phantoms |
| topic | internal dosimetry whole body counter bomab radioprotection. |
| url | https://bjrs.org.br/revista/index.php/REVISTA/article/view/252 |
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