发明名称 |
検出ゾーンにおけるターゲットの異常な放射性物質の有無を判定するための方法、装置、コンピュータプログラム、および当該コンピュータプログラムを記録しているコンピュータ可読記憶媒体 |
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 comprises 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 |
JP5959436(B2) |
申请公布日期 |
2016.08.02 |
申请号 |
JP20120538144 |
申请日期 |
2010.11.11 |
申请人 |
オーストラリアン ニュークリア サイエンス アンド テクノロジー オーガニゼーション |
发明人 |
マーク・レインハード;デーヴィッド・ボードマン |
分类号 |
G01T1/167;G01T1/17;G01T1/36 |
主分类号 |
G01T1/167 |
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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