Abstract
The results of an experimental study of the stochastic fluctuations of the energy of IBR-2M pulses, which are used to obtain some parameters of the reactor kinetics, are presented. A pulse energy sequence was recorded at different average power levels and the distribution parameters were calculated. An ionization chamber, placed near the core, with boron was used as the neutron detector. The results obtained made it possible to evaluate the following: the average lifetime of prompt neutrons τ= (6.5 ± 0.2)·10–8 sec, the absolute power of the reactor and the source of spontaneous-fission neutrons S sp ≤ (6.72 ± 0.12)·106 sec–1. It is shown that the experimental results are close to the computational results.
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