Gamma spectrometry of iodine-125 produced in IEA-R1 nuclear reactor, using HPGe detector and fixation into epoxy matrix disc.

Autor: da Costa OL; Instituto de Pesquisas Energéticas e Nucleares (IPEN/CNEN-SP), Cidade Universitária, Av. Professor Lineu Prestes 2242, 05508-000, São Paulo, SP, Brazil. Electronic address: olcosta@ipen.br., de Souza DCB; Instituto de Pesquisas Energéticas e Nucleares (IPEN/CNEN-SP), Cidade Universitária, Av. Professor Lineu Prestes 2242, 05508-000, São Paulo, SP, Brazil., Castanho FG; Instituto de Pesquisas Energéticas e Nucleares (IPEN/CNEN-SP), Cidade Universitária, Av. Professor Lineu Prestes 2242, 05508-000, São Paulo, SP, Brazil., Feher A; Instituto de Pesquisas Energéticas e Nucleares (IPEN/CNEN-SP), Cidade Universitária, Av. Professor Lineu Prestes 2242, 05508-000, São Paulo, SP, Brazil., Moura JA; Instituto de Pesquisas Energéticas e Nucleares (IPEN/CNEN-SP), Cidade Universitária, Av. Professor Lineu Prestes 2242, 05508-000, São Paulo, SP, Brazil., Souza CD; Instituto de Pesquisas Energéticas e Nucleares (IPEN/CNEN-SP), Cidade Universitária, Av. Professor Lineu Prestes 2242, 05508-000, São Paulo, SP, Brazil., Oliveira HB; Instituto de Pesquisas Energéticas e Nucleares (IPEN/CNEN-SP), Cidade Universitária, Av. Professor Lineu Prestes 2242, 05508-000, São Paulo, SP, Brazil., Máduar MF; Instituto de Pesquisas Energéticas e Nucleares (IPEN/CNEN-SP), Cidade Universitária, Av. Professor Lineu Prestes 2242, 05508-000, São Paulo, SP, Brazil., Zeituni CA; Instituto de Pesquisas Energéticas e Nucleares (IPEN/CNEN-SP), Cidade Universitária, Av. Professor Lineu Prestes 2242, 05508-000, São Paulo, SP, Brazil., Rostelato MECM; Instituto de Pesquisas Energéticas e Nucleares (IPEN/CNEN-SP), Cidade Universitária, Av. Professor Lineu Prestes 2242, 05508-000, São Paulo, SP, Brazil.
Jazyk: angličtina
Zdroj: Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine [Appl Radiat Isot] 2021 Mar; Vol. 169, pp. 109568. Date of Electronic Publication: 2020 Dec 19.
DOI: 10.1016/j.apradiso.2020.109568
Abstrakt: Few places in the world produce iodine-125. In Brazil, the first production was achieved by using the IEA-R1 nuclear reactor located at Nuclear and Energy Research Institute - IPEN. To verify the quality of iodine-125 produced, and the amount of contaminants such as iodine-126, cesium-134 and caesium-137 among others, iodine-125 samples were immobilized into epoxy matrix disc, with the same geometry of a barium-133 reference radioactive source, used to calibrate an HPGe detector. The HPGe detector has a thin carbon composite window, which allows measure the iodine-125 photopeaks, between 27.1 and 35.4 keV. The method employed here was successful in producing and measurement of iodine-125.
(Copyright © 2020 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
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