A Study of The Peak Boundary Method and Effect Evaluation Based on NaI(TI) Detector for -Spectrum Analysis

DOI

10.2991/iccsee.2013.498How to use a DOI?

Keywords

-spectrum, Gaussian fitting, Weighted least squre fitting, boundary determine

Abstract

In order to accurately analyze the result, which comes from quantitative and qualitative detection based on gamma energy spectrum of NaI(T1) detector, peak boundary has become one of the main factors which influence the spectrum analysis. By implementing some common boundary determining algorithms in the Matlab such as simple comparison method, derivative method, symmetry zero-area method, the full width method and gaussian function fitting method, as well as comparing effectiveness among those algorithm, priority of those boundary algorithms is evaluated. At the same time, because the boundary determining algorithm based on traditional gaussian fitting is not ideal, the new boundary determining algorithm based on the least squares fitting of gaussian function with weighting factor is proposed. The practice verifies that this method is stability and can obtain preferable convergence result in boundary determining of unimodal or combination peaks.

Copyright

© 2013, 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  - Yaozong YANG
AU  - Fang FANG
AU  - Jianfeng HE
AU  - Junjun RAN
PY  - 2013/03
DA  - 2013/03
TI  - A Study of The Peak Boundary Method and Effect Evaluation Based on NaI(TI) Detector for -Spectrum Analysis
BT  - Proceedings of the 2nd International Conference on Computer Science and Electronics Engineering (ICCSEE 2013)
PB  - Atlantis Press
SP  - 1979
EP  - 1983
SN  - 1951-6851
UR  - https://doi.org/10.2991/iccsee.2013.498
DO  - 10.2991/iccsee.2013.498
ID  - YANG2013/03
ER  -