The use of energy windowing to discriminate SNM from NORM in radiation portal monitors

被引：100

作者：

Ely, James ^{[1
]}

Kouzes, Richard ^{[1
]}

Schweppe, John ^{[1
]}

Siciliano, Edward ^{[1
]}

Strachan, Denis ^{[1
]}

Weier, Dennis ^{[1
]}

机构：

[1] Pacific NW Natl Lab, Richland, WA 99352 USA

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2006年 / 560卷 / 02期

关键词：

energy windowing; portal monitors; naturally occurring radioactive material; NORM; special nuclear material; SNM; plastic scintillator; background rejection; radiation detection; border security; shadow shielding; baseline depression;

D O I：

10.1016/j.nima.2006.01.053

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Energy windowing is an algorithmic alarm method that can be applied to plastic scintillator-based radiation portal monitor (RPM) systems to improve operational sensitivity to certain threat sources while reducing the alarm rates from naturally occurring radioactive material. Various implementations of energy windowing have been tested and documented by industry and at Pacific Northwest National Laboratory, and are available in commercial RPMs built by several manufacturers. Moreover, energy windowing is being used in many deployed RPMs to reduce nuisance alarms and improve operational sensitivity during the screening of cargo. This paper describes energy windowing algorithms and demonstrates how these algorithms succeed when applied to "controlled" experimental measurements and "real world" vehicle traffic data. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：373 / 387

页数：15

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