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Title: Mathematical approach to determine the linear attenuation coefficient without collimator in gamma-ray spectrometry.
Authors: Kim, Chang-Jong; Cho, Yoon-Hae; Byun, Jong-In; Yun, Ju-Yong
Abstract: The linear attenuation coefficient is an important factor in the correction of self-attenuation. In this study, a cone beam from a source of ∼1 μCi was utilised, not equipped with the collimator, and a complete geometric configuration was mathematically modelled. Samples of NaCl, Na2CO3 and (NH4)2SO4 were used to verify the mathematical model. The linear attenuation coefficient can be calculated within ∼4 % of difference in the cylindrical sample at energies of 59.5, 121.8, 244.7, 344.2 and 444.0 keV.
Subjects: GAMMA ray spectrometry; COLLIMATORS; LINEAR statistical models; ATTENUATION of light; MATHEMATICAL analysis; CYLINDER (Shapes)
Publication: Radiation Protection Dosimetry, 2013, Vol 155, Issue 2, p236
ISSN: 0144-8420
Publication type: Academic Journal
DOI: 10.1093/rpd/ncs329

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Mathematical approach to determine the linear attenuation coefficient without collimator in gamma-ray spectrometry.