Physics-based Radionuclide Event Mode Sequence and Radioactive Pattern Analysis

DOI

10.2991/jimec-18.2018.45How to use a DOI?

Keywords

radionuclide detection; physics-based approach; event sequence mode; Kalman filtering

Abstract

The accurate and rapid identification of radio-nuclide is an extremely important matter of radioactive material control and public security check. The classical detection method using γ-ray spectrum depends on large numbers of γ-ray measurements, which means a long time cost, especially when the radioactivity is low. A physics-based radionuclide γ-ray event modes sequence, representing specific nuclide is introduced, which offers a pattern recognition approach to attack this problem. The development of radionuclide representation in terms of characteristic γ-ray energy along with branching ratio that utilizes the measurement of photon energies by the detector and the probable γ-ray emission is described. The Kalman filtering is used to estimate the underlying characteristic γ-ray energy parameter in specific energy interval related to interested nuclides from the uncertain measurement photon by photon in this paper. The implementation of this approach is applied to experimental data to demonstrate its validity.

Copyright

© 2019, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Chao Gao
AU  - Zongliang Fang
AU  - Lijun Zhang
AU  - Jianfeng Cao
AU  - Shenghua Zhang
PY  - 2018/12
DA  - 2018/12
TI  - Physics-based Radionuclide Event Mode Sequence and Radioactive Pattern Analysis
BT  - Proceedings of the 2018 3rd Joint International Information Technology，Mechanical and Electronic Engineering Conference (JIMEC 2018)
PB  - Atlantis Press
SP  - 210
EP  - 214
SN  - 2589-4943
UR  - https://doi.org/10.2991/jimec-18.2018.45
DO  - 10.2991/jimec-18.2018.45
ID  - Gao2018/12
ER  -