Statiscal differences and systematic effect on measurement procedure in thermoluminescent dosimetry of the iodine-125 brachytherapy seed
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2009
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INTERNATIONAL NUCLEAR ATLANTIC CONFERENCE; MEETING ON NUCLEAR APPLICATIONS, 9th; MEETING ON REACTOR PHYSICS AND THERMAL HYDRAULICS, 16th; MEETING ON NUCLEAR INDUSTRY, 1st
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In order to provide the dosimetry for Iodine-125 seed production in Brazil, Harshaw thermoluminescent
dosimeters (TLD-100) will be used. Even if measurements with TLD-100 of the same batch of fabrication are
performed, the response will not be the same. As a consequence, they must be measured one by one. These
dosimeters are LiF type with a micro-cube (1mm x 1mm x 1mm) shape. Irradiations were performed using
Iodine-125 seeds to guarantee the same absorbed dose of 5 Gy in each dosimeter. It has been used a Solid Water
Phantom with three concentrically circle with 20mm, 50mm and 70mm diameters. The angle of positions used
was 0º, 30º, 60º and 90º. Of course there are 2 positions in 0º and 90º and 4 positions in 30º and 60º. These
complete procedures were carried out five times in order to compare the data and minimize the systematic error.
The iodine-125 seed used in the experiment was take off in each measure and put again turning his position 180º
to guarantee the systematic error was minimized. This paper presents also a little discussion about the statistical
difference in the measurement and the calculation procedure to determine the systematic error in these
measurements.
Como referenciar
ZEITUNI, CARLOS A.; MOURA, EDUARDO S.; ROSTELATO, MARIA E.C.M.; MANZOLI, JOSE E.; MOURA, JOAO A.; FEHER, ANSELMO; KARAM, DIB. Statiscal differences and systematic effect on measurement procedure in thermoluminescent dosimetry of the iodine-125 brachytherapy seed. In: INTERNATIONAL NUCLEAR ATLANTIC CONFERENCE; MEETING ON NUCLEAR APPLICATIONS, 9th; MEETING ON REACTOR PHYSICS AND THERMAL HYDRAULICS, 16th; MEETING ON NUCLEAR INDUSTRY, 1st, September 27 - October 2, 2009, Rio de Janeiro, RJ. Proceedings... Disponível em: http://repositorio.ipen.br/handle/123456789/12262. Acesso em: 06 Jun 2024.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.