Correction factors for non-uniform large-area reference sources
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Applied Radiation and Isotopes
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Based on uniformity measurements of large-area reference sources used in calibration procedures of surface
contamination monitors, an investigation was carried out to obtain a method that estimates the bias originated
from surface source intensity distribution deviation from the ideal uniform distribution and corrects it. It relies
on correcting the estimated instrument efficiency by applying correction factors driven from the uniformity
distribution profiles of the sources used in calibration procedure. Simulations of the monitor calibration procedure
are run for 2 distinct surface source distributions: the real and the ideally uniform distributions.
Correction factors are driven from counting rate estimates obtained from each source representation. In order to
evaluate adequacy of this proposition it was validated against a method proposed by the NPL in the Good
Practices Guide No.14.
Como referenciar
SILVA JÚNIOR, IREMAR A.; SIQUEIRA, PAULO de T.D.; NASCIMENTO, EDUARDO do; YORIYAZ, HELIO; SORDI, GIAN-MARIA A.A.; VIVOLO, VITOR; POTIENS, MARIA da P.A. Correction factors for non-uniform large-area reference sources. Applied Radiation and Isotopes, v. 160, p. 1-6, 2020. DOI: 10.1016/j.apradiso.2020.109082. Disponível em: http://repositorio.ipen.br/handle/123456789/31343. Acesso em: 30 Dec 2025.
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.