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Threshold self-powered gamma detector for use as a monitor of power in a nuclear reactor
Threshold self-powered gamma detector for use as a monitor of power in a nuclear reactor
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机译:门限自供电伽马探测器,用作核反应堆中的功率监控器
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摘要
A self-powered gamma monitor for placement near the core of a nuclear reactor comprises a lead prism surrounded by a coaxial thin nickel sheet, the combination forming a collector. A coaxial polyethylene electron barrier encloses the collector and is separated from the nickel sheet by a vacuum region. The electron barrier is enclosed by a coaxial stainless steel emitter which, in turn, is enclosed within a lead casing. When the detector is placed in a flux of gamma rays, a measure of the current flow in an external circuit between emitter and collector provides a measure of the power level of the reactor.
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