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Published: 2021-09-03
Abstract Views: 210
Views PDF: 65
DOI: https://doi.org/10.53747/jnst.v9i4.138
Issue
Vol. 9 No. 4 (2019)
Section
Articles
How to Cite
Nguyen, D. Q., Trinh, V. C., Tran, T. A., Ho, V. D., Nguyen, T. T., & Ho, M. D. (2021). Determination of in situ detection efficiency for IM-NAA of non-standard geometrical samples. Nuclear Science and Technology, 9(4), 27-33. https://doi.org/10.53747/jnst.v9i4.138

Determination of in situ detection efficiency for IM-NAA of non-standard geometrical samples

Nguyen Duy Quang1, Trinh Van Cuong1, Tran Tuan Anh1, Ho Van Doanh1, Nguyen Thi Tho1, Ho Manh Dung2
1 Dalat Nuclear Research Institute, 01 Nguyen Tu Luc Street., Da Lat, Lam Dong
2 Center For Nuclear Techniques, 217 Nguyen Trai street, District 1, HCM City

Main Article Content

Abstract

The k0-based internal mono-standard (IM) method was first proposed for the concentration analysis of samples of non-standard geometry in the 2000s. The method has demonstrated several advantages such as the elimination of gamma-ray self-attenuation and geometrical effects. On the other hand, the accuracy of the method principally depends on the in situ relative detection efficiency, which requires to be obtained in each measurement. Therefore, the relative detection efficiency is always under consideration for the improvement of the analysis results. The present paper describes a simple and automatic procedure for the determination of the relative efficiency using one or more activation products emitting gamma rays over a considered range of the spectrum. The procedure can be applied for INAA and PGNAA analysis.

Article Details

Keywords

INAA, PGNAA, internal mono-standard method, relative efficiency, non-standard geometry samples

References

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