We offer to your attention a preprint “The Dynamics of Oscillation Instability of the IBR-2M Reactor. The Noise Analysis” P13-2021-29 published by the JINR Publishing Department. The authors are Yu. N. Pepelyshev, Ts. Tsogtsaikhan.
The results of the study on noise dynamics and self-oscillations of the pulse energy in the IBR-2M for period from 2012 at the power of 2 MW until the middle of 2021 are presented. It is shown that with an increase in fuel burnup, the power spectral density of the pulse energy noise becomes more complicated and the amplitude of self-oscillations grows. Based on the data obtained, a strategy was developed to suppress the oscillatory instability of the IBR-2M, up to the life of the reactor in 2036. The need to continue research on the noise dynamics and oscillatory instability of the IBR-2M reactor was shown.
Submitted to “Atomic energy”
The investigation has been performed at the Frank Laboratory of Neutron Physics.
