| 发明名称 | Self-powered gamma detector | ||
| 摘要 | A self-powered gamma detector which can hold the influence of neutron rays to the minimum, and can measure the dose of gamma rays accurately under a high neutron environment in the reactor is disclosed. The self-powered gamma detector has a columnar emitter member; a collector member arranged in surroundings of the emitter member through an insulating member, and the strength of gamma rays is measured by detecting the value of a current which flows between the emitter member and an MI cable connected with the emitter member, and the collector member. Especially, the emitter member consists of pure tungsten (W), whose inevitable impurities is in 0.03 percent by weight or less. | ||
| 申请公布号 | US9046611(B2) | 申请公布日期 | 2015.06.02 |
| 申请号 | US201314051674 | 申请日期 | 2013.10.11 |
| 申请人 | Japan Atomic Energy Agency;Sukegawa Electric Co., Ltd. | 发明人 | Takeuchi Tomoaki;Nagata Hiroshi;Ohtsuka Noriaki;Shibata Akira;Tsuchiya Kunihiko;Miura Kuniaki;Yamamoto Hiroshi |
| 分类号 | G01T1/17;G01T3/00 | 主分类号 | G01T1/17 |
| 代理机构 | Brundidge & Stanger, P.C. | 代理人 | Brundidge & Stanger, P.C. |
| 主权项 | 1. A self-powered gamma detector comprising: a solid columnar emitter member; a collector member surrounding said emitter member through an insulating member; the strength of gamma rays being measured by detecting the value of a current which flows between said emitter member and an MI cable connected with said emitter member, and said collector member; wherein said emitter member consists of pure tungsten (W), whose inevitable impurities is in 0.03 percent by weight or less. | ||
| 地址 | Ibaraki JP | ||