2020-01-27T09:14:49Z
https://www.heighpubs.org/oai/oai.php
oai:heighpubs.org:10.29328/journal.jro.1001003
2017-02-06
JRO:VOL1
Using Mathematical Procedure to Compute the Attenuation Coeffi cient in Spectrometry Field
Mohamed Elsafi Mona. M. Gouda Mohamed. S. Badawi Abouzeid. A. Thabet Ahmed. M. El Khatib Mahmoud. I. AbbasKholud. S. Almugren
In gamma-ray spectrometry, the analysis of the environmental radioactivity samples (soil, sediment and ash of a living organism) needs to know the linear attenuation coefficient of the sample matrix. This coefficient is required to calculate the self-absorption correction factor through the sample bulk.In addition, these parameters are very important because the unidentified samples can be different in the composition and density from the reference liquid sources which are usually used for efficiency calibration in the radioactive monitoring process. The present work is essentially concerned to introduce a mathematical method to calculate the linear attenuation coefficient without using any collimator. This method was based mainly on the calculations of the effective solid angle subtended by the source-to-the detector configurations, the efficiency transfer technique and the average path lengths through the samples itself. The method can be used as a tool for the calculation of the linear attenuation coefficient of unidentified materials with good facility to use it in the calibration process of γ-ray detectors, particularly in the study of soil samples. The results are compared with the data from NIST-XCOM to show how much the results are in close agreement and to give the validity of the approach.</p>
Journal of Radiology and Oncology - Heighten Science Publications Corporation
2017-02-06
Case Reporthttps://www.heighpubs.org/jro/jro-aid1003.phpenCopyright Â© Mohamed Elsafi et al.