Display options
Cite
Vargas MJ, Timón AF, Díaz NC, et al. Monte Carlo simulation of the self-absorption corrections for natural samples in gamma-ray spectrometry. Appl Radiat Isot. 2002;57(6):893-8doi: 10.1016/s0969-8043(02)00220-8.
Vargas, M. J., Timón, A. F., Díaz, N. C., & Sánchez, D. P. (2002). Monte Carlo simulation of the self-absorption corrections for natural samples in gamma-ray spectrometry. Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine, 57(6), 893-8. https://doi.org/10.1016/s0969-8043(02)00220-8
Vargas, M Jurado, et al. "Monte Carlo simulation of the self-absorption corrections for natural samples in gamma-ray spectrometry." Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine vol. 57,6 (2002): 893-8. doi: https://doi.org/10.1016/s0969-8043(02)00220-8
Vargas MJ, Timón AF, Díaz NC, Sánchez DP. Monte Carlo simulation of the self-absorption corrections for natural samples in gamma-ray spectrometry. Appl Radiat Isot. 2002 Dec;57(6):893-8. doi: 10.1016/s0969-8043(02)00220-8. PMID: 12406634.
Copy Download .nbib Format: NLM
Share it on

Appl Radiat Isot. 2002 Dec;57(6):893-8. doi: 10.1016/s0969-8043(02)00220-8.

Monte Carlo simulation of the self-absorption corrections for natural samples in gamma-ray spectrometry.

Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine

M Jurado Vargas, A Fernández Timón, N Cornejo Díaz, D Pérez Sánchez

Affiliations

  1. Departamento de Física, Universidad de Extremadura, 06071, Badajoz, Spain. [email protected]

PMID: 12406634 DOI: 10.1016/s0969-8043(02)00220-8

Abstract

Gamma-ray self-attenuation corrections in the energy range 60-2000 keV were evaluated by means of Monte Carlo calculations for environmental samples in a cylindrical measuring geometry. The dependence of the full-energy peak efficiency on the sample density was obtained for some particular photon energies and, as a result, the corresponding self-attenuation correction factors were obtained. The calculations were performed by assuming that natural materials have mass attenuation coefficients very similar to those of water in the energy range studied. Three different HpGe coaxial detectors were considered: an n-type detector with 44.3% relative efficiency and two p-type detectors of relative efficiencies 20.0% and 30.5%. Our calculations were in very good agreement with the self-attenuation correction factors obtained experimentally by other workers for environmental samples of different densities. This work demonstrates the reliability of Monte Carlo calculations for correcting photon self-attenuation in natural samples. The results also show that the corresponding correction factors are essentially unaffected by the specific coaxial detector used.

Publication Types