COUNT RATE MEASUREMENT METHOD AND DEVICE

摘要

The invention relates to a fission-chamber count rate measurement device and to the associated fission-chamber calibration device. The count rate measurement device comprises : a measurement cell (1), which contains the fission chamber (CH); a neutron generator (6), which emits neutrons in the form of periodic pulses towards the fission chamber; a neutron counter (K), which detects and counts the neutrons emitted by the neutron generator; and a computing circuit (34), which delivers, over a predetermined time interval, a fission-chamber count rate normalized with reference to the number of neutrons counted by the neutron counter (K).