| 摘要 |
PURPOSE:To enable to perform ON-line monitor for the distribution of neutron flux at local position, by using the self output type radiant ray detector covered with the cover being the collector on a plurality of mutually isolated emitters. CONSTITUTION:The detectors are installed in the required location in the atomic reactor in measuring. When neutrons or gumma rays pass through the detectors, beta rays are produced from the emitter 3 and they are converted into the current signal at the collector 1. The detection signal of each emitter 3 is sequentially transmitted to the signal processing section 9 via the rotor section 7 in which the contacts are in turned in equal speed and the cable 8, and the distribution can be obtained with the signal processing.
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