Covariance analysis of gamma ray spectra

Trainham R.; Tinsley J.

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Covariance analysis of gamma ray spectra

机译：γ射线光谱的协方差分析

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摘要

The covariance method exploits fluctuations in signals to recover information encoded in correlations which are usually lost when signal averaging occurs. In nuclear spectroscopy it can be regarded as a generalization of the coincidence technique. The method can be used to extract signal from uncorrelated noise, to separate overlapping spectral peaks, to identify escape peaks, to reconstruct spectra from Compton continua, and to generate secondary spectral fingerprints. We discuss a few statistical considerations of the covariance method and present experimental examples of its use in gamma spectroscopy.

机译：协方差方法利用信号的波动来恢复以相关性编码的信息，这些信息在发生信号平均时通常会丢失。在核光谱学中，可以将其视为巧合技术的概括。该方法可用于从不相关的噪声中提取信号，分离重叠的光谱峰，识别逃逸峰，从康普顿连续体重建光谱，并生成次级光谱指纹。我们讨论了协方差方法的一些统计考虑，并介绍了其在伽马光谱中的实验示例。

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来源
《Review of Scientific Instruments》 |2013年第1期|p.1-8|共8页
作者
Trainham R.; Tinsley J.;
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作者单位

Special Technologies Laboratory of National Security Technologies, LLC, 5520 Ekwill Street, Santa Barbara, California 93111, USA;

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正文语种 eng
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关键词
Compton effect; computerised instrumentation; correlation theory; covariance analysis; gamma-ray spectroscopy; signal denoising; signal reconstruction; 0250-r; 0705-t; 2930Kv;

机译：康普顿效应;电脑化仪器;相关理论协方差分析;伽玛射线光谱;信号去噪信号重建0250-r;0705-t;2930Kv;

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Covariance analysis of gamma ray spectra

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