Online spectral unmixing in gamma-ray spectrometry

被引：2

作者：

Malfrait, Paul ^{[1
]}

Bobin, Jerome ^{[2
]}

Ott, Anne de Vismes ^{[1
]}

机构：

[1] PSE ENV SAME LMRE, Inst Radioprotect & Surete Nucl IRSN, F-91400 Orsay, France

[2] CEA IRFU DEDIP, F-91191 Gif Sur Yvette, France

来源：

APPLIED RADIATION AND ISOTOPES | 2023年 / 201卷

关键词：

Gamma-ray spectrometry; Model; Full spectrum analysis; Poisson statistics-based spectral unmixing; Metrological analysis;

D O I：

10.1016/j.apradiso.2023.111011

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

We introduced in a previous paper a time-dependent full-spectrum analysis algorithm speeding up the estimation of the activity of the radionuclides present in a sample. In this paper, we present a new version of the algorithm allowing online estimation. It uses only on a buffer of few segments while keeping the time information by using a time dependent regularization, thus reducing the size of the data matrices and the length of the processing of each iteration. The algorithm is optimized and tested on both simulated and measured spectra of aerosol samples.

引用

页数：9

共 17 条

[1] Metrological approach of γ-emitting radionuclides identification at low statistics: application of sparse spectral unmixing to scintillation detectors [J].

Andre, Remi ;

Bobin, Christophe ;

Bobin, Jerome ;

Xu, Jiaxin ;

de Vismes Ott, Anne .

METROLOGIA, 2021, 58 (01)

[2]

Berlizov A., 2012, CORRELATED PARTICLE, P183

[3] Application of adversarial learning for identification of radionuclides in gamma-ray spectra [J].

Chaouai, Zakariya ;

Daniel, Geoffrey ;

Martinez, Jean-Marc ;

Limousin, Olivier ;

Benoit-Levy, Aurelien .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2022, 1033

[4] Artificial gamma ray spectra simulation using Generative Adversarial Networks (GANs) and Supervised Generative Networks (SGNs) [J].

de Oliveira, Felipe M. F. ;

Daniel, G. ;

Limousin, O. .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2023, 1047

[5]

Gilmore G., 2001, PRACTICAL GAMMA RAY, Vsecond

[6] Full-spectrum analysis of natural γ-ray spectra [J].

Hendriks, PHGM ;

Limburg, J ;

de Meijer, RJ .

JOURNAL OF ENVIRONMENTAL RADIOACTIVITY, 2001, 53 (03) :365-380

[7] Poisson Statistical Methods for the Analysis of Low-Count Gamma Spectra [J].

Kirkpatrick, John M. ;

Young, Brian M. .

IEEE TRANSACTIONS ON NUCLEAR SCIENCE, 2009, 56 (03) :1278-1282

[8]

Knoll G.F., 2010, Radiation Detection and Measurement, V4rd

[9] ON INFORMATION AND SUFFICIENCY [J].

KULLBACK, S ;

LEIBLER, RA .

ANNALS OF MATHEMATICAL STATISTICS, 1951, 22 (01) :79-86

[10] Learning the parts of objects by non-negative matrix factorization [J].

Lee, DD ;

Seung, HS .

NATURE, 1999, 401 (6755) :788-791

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