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首页> 外文期刊>Applied radiation and isotopes: including data, instrumentation and methods for use in agriculture, industry and medicine >A comparison of simple algorithms for gamma-ray spectrometers in radioactive source search applications
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A comparison of simple algorithms for gamma-ray spectrometers in radioactive source search applications

机译:放射源搜索应用中伽马射线能谱仪简单算法的比较

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摘要

Large variation in ambient gamma-ray backgrounds challenges the search for radiation sources. Raising detection thresholds is a common response, but one that comes at the price of reduced detection sensitivity. In response to this challenge, we explore several tripwire detection algorithms for gamma-ray spectrometers. We assess their ability to mitigate background variation and find that the best-performing algorithms focus on the spectral shape over several energy bins using spectral comparison ratios and dynamically predict background with the Kalman Filter. (c) 2007 Elsevier Ltd. All rights reserved.
机译:环境伽玛射线背景的巨大变化挑战了寻找辐射源的挑战。提高检测阈值是一种常见的响应,但这是以降低检测灵敏度为代价的。为了应对这一挑战,我们探索了几种用于伽马射线谱仪的绊线检测算法。我们评估了它们减轻背景变化的能力,并发现性能最佳的算法使用光谱比较率着重于几个能量仓的光谱形状,并使用卡尔曼滤波器动态预测背景。 (c)2007 Elsevier Ltd.保留所有权利。

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