Count-doubling time safety circuit

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G21C 1700, G01T 300

Patent

active

042773083

ABSTRACT:
There is provided a nuclear reactor count-factor-increase time monitoring circuit which includes a pulse-type neutron detector, and means for counting the number of detected pulses during specific time periods. Counts are compared and the comparison is utilized to develop a reactor scram signal, if necessary.

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patent: 3931522 (1976-01-01), Rusch
patent: 3942014 (1976-03-01), McDowell et al.
J. Nuc. Sci. & Tech., vol. 8 [10], pp. 558-562 (10/71), Iwokuchi et al., Digital Period Meter.
AIEE Trans., Pt. 1, vol. 79 (9/60), pp. 360-375, Lehr et al.
Power Reactor Tech., vol. 5, No. 2 (3/62), pp. 61-73.

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