Issue 1, 2021

Correction for neutron self-shielding and gamma-ray self-absorption in prompt-gamma activation analysis for large and irregularly shaped samples

Abstract

Prompt-gamma activation analysis (PGAA) is a useful method to determine the elemental composition of bulky samples, where non-destructivity, representativity, and high metrological quality are of great importance. Voluminous samples significantly attenuate both the exciting neutron beam and the emerging gamma radiation within the sample. We have developed a generally applicable correction for the neutron self-shielding and gamma-ray self-absorption effect for large and irregularly shaped samples, based on digital geometry data and Monte Carlo simulations. The numerical correction gives results that agree well with those from destructive sampling.

Graphical abstract: Correction for neutron self-shielding and gamma-ray self-absorption in prompt-gamma activation analysis for large and irregularly shaped samples

Supplementary files

Article information

Article type
Paper
Submitted
06 aug 2020
Accepted
21 okt 2020
First published
22 okt 2020
This article is Open Access
Creative Commons BY-NC license

J. Anal. At. Spectrom., 2021,36, 103-110

Correction for neutron self-shielding and gamma-ray self-absorption in prompt-gamma activation analysis for large and irregularly shaped samples

L. Szentmiklósi, Z. Kis, B. Maróti and L. Z. Horváth, J. Anal. At. Spectrom., 2021, 36, 103 DOI: 10.1039/D0JA00364F

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