发明名称 |
ANOMALY DETECTION OF RADIOLOGICAL SIGNATURES |
摘要 |
Described herein is a method for determining the presence or absence of anomalous radioactive materials in a target in a detection zone. In the method, a target gamma ray spectrum is obtained from the target and a target data set is prepared from the target gamma ray spectrum. This data set comprise a plurality of intensity values, each intensity value being associated with an energy bin representing a gamma ray energy or range of gamma ray energies in the target gamma ray spectrum. The target data set is then pre-processed and projected into a principal component space which contains a pre-processed data library projected into the principal component space. A distance is then determined between the projected pre-processed target data set and one or more clusters of the projected pre-processed data library in the principal component space and this distance is compared with a predetermined threshold distance so as to determine if an anomalous radioactive material is present in the target. |
申请公布号 |
US2012311933(A1) |
申请公布日期 |
2012.12.13 |
申请号 |
US201013509086 |
申请日期 |
2010.11.11 |
申请人 |
REINHARD MARK;BOARDMAN DAVID;AUSTRALIAN NUCLEAR SCIENCE AND TECHNOLOGY ORGANISATION |
发明人 |
REINHARD MARK;BOARDMAN DAVID |
分类号 |
G06F15/00;E05F15/20 |
主分类号 |
G06F15/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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