| 摘要 |
PURPOSE:To display a failed neutron detector for a measuring personnel by detecting the neutron detector which failed due to deterioration and failure in a system for measuring a neutron flux by processing the detection signal of the neutron detector using a radioactive sensitive substance. CONSTITUTION:In a system for monitoring a neutron flux for grasping a measurement value by a device 4 for displaying a neutron flux according to a signal S0 which is obtained by performing signal processing a voltage signal Sout' which is converted from a current output signal Sout of a sensor 1 by a current/voltage converter 2 using a signal processor 3, the signal Sout' is input to a threshold judging equipment 5 for detecting the abnormal signal at a high level and then a signal S1 is output to a memory device 6 when the threshold judging equipment 5 detects abnormality. Then, the degree of deterioration of the sensor 1 is judged according to occurrence count per unit time of the abnormal signal by a judging device 8 and then the judgement result is displayed on a display 10.
|
