Alarm criteria in radiation portal monitoring

被引：21
作者：
Burr, Tom
Gattiker, James R.
Myers, Kary
Tompkins, George
机构：
[1] Los Alamos Natl Lab, Stat Sci Grp, Los Alamos, NM 87545 USA
[2] Los Alamos Natl Lab, Risk Anal & Decis Support Syst, Los Alamos, NM 87545 USA
来源：
APPLIED RADIATION AND ISOTOPES | 2007年 / 65卷 / 05期
关键词：
alarm criteria; passive gamma-counting; background suppression; experimental design; sequential testing; border security;
D O I：
10.1016/j.apradiso.2006.11.010
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
Gamma detectors at border crossings are intended to detect illicit nuclear material. These detectors collect counts that are used to deten-nine whether to trigger an alarm. Several candidate alarm rules are evaluated, with attention to background suppression caused by the vehicle. Because the count criterion leads to many nuisance alarms and because background suppression by the vehicle is smaller for ratios of counts, analysis of a ratio criterion is included. Detection probability results that consider the effects of 5 factors are given for 2 signal-injection studies,1 for counts, and 1 for count ratios. (c) 2007 Elsevier Ltd. All rights reserved.
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收藏
页码：569 / 580
页数：12
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