发明名称 |
Relating to ion detection |
摘要 |
The apparatus and method provide a technique for improving detection of alpha and/or beta emitting sources on items or in locations using indirect means. The emission forms generate ions in a medium surrounding the item or location and the medium is then moved to a detecting location where the ions are discharged to give a measure of the emission levels. To increase the level of ions generated and render the system particularly applicable for narrow pipes and other forms of conduits, the medium pressure is increased above atmospheric pressure.
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申请公布号 |
US6326626(B1) |
申请公布日期 |
2001.12.04 |
申请号 |
US19990307365 |
申请日期 |
1999.05.07 |
申请人 |
BRITISH NUCLEAR FUELS PLC;UNIV CALIFORNIA |
发明人 |
ORR CHRISTOPHER HENRY;LUFF CRAIG JANSON;DOCKRAY THOMAS;MACARTHUR DUNCAN WHITTEMORE |
分类号 |
G01T1/18;G01T1/185;H01J47/02;(IPC1-7):G01T1/18 |
主分类号 |
G01T1/18 |
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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