Self-attenuation as a function of gamma ray energy in naturally occurring radioactive material in the oil and gas industry

Self-attenuation correction factors were experimentally determined using radioactive point sources in combination with a subject material of naturally occurring radioactive material (NORM) obtained from oil exploration waste products. The self-attenuation correction factors were taken across a range...

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Published in:Applied radiation and isotopes 2015-03, Vol.97, p.21-23
Main Authors: Millsap, D.W., Landsberger, S.
Format: Article
Language:English
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Gamma ray absorption
Naturally occurring radioactive material (NORM)
Oil and gas industry
Self-attenuation correction factor
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description Self-attenuation correction factors were experimentally determined using radioactive point sources in combination with a subject material of naturally occurring radioactive material (NORM) obtained from oil exploration waste products. The self-attenuation correction factors were taken across a range of gamma ray energies from 41.73 to 1408.0keV. It is noted that the greatest amount of self-attenuation occurs in the energy regime below 200keV and rises to near zero attenuation at higher energies for these types of samples. For the 46.5keV gamma ray of 210Pb there can be an underestimation of 62%. •Self attenuation of gamma-rays.•Naturally occurring radioactive material in oil and gas industry.•Ra-226, Ra-228 and Pb-210.
doi_str_mv 10.1016/j.apradiso.2014.12.008
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subjects Gamma ray absorption
Naturally occurring radioactive material (NORM)
Oil and gas industry
Self-attenuation correction factor
title Self-attenuation as a function of gamma ray energy in naturally occurring radioactive material in the oil and gas industry
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