Results
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