Reactimeter of the IBR-2M Periodic Pulse Reactor

• Published in: Atomic energy (New York, N.Y.) Vol. 117; no. 5; pp. 307 - 313
• Main Authors: Marachev, A. A., Pepelyshev, Yu. N., Popov, A. K., Sumkhuu, D.
• Format: Journal Article
• Language: English
• Published: Boston Springer US 01-03-2015; Springer; Springer Nature B.V
• Subjects: Amplitudes; Deviation; Difference equations; Energy; Hadrons; Heavy Ions; Neutrons; Noise; Nonlinearity; Nuclear Chemistry; Nuclear Energy; Nuclear Physics; Nuclear reactors; Optimization; Physics; Physics and Astronomy; Reactors; Smoothing; Studies; Systems design; United States > US; Transient Process; Optimal Filter; Prompt Neutron; Power Pulse; Pulse Reactor
• ISSN: 1063-4258; 1573-8205
• DOI: 10.1007/s10512-015-9926-4

A reactimeter was developed for the IBR-2 periodic-pulse reactor. The reactor kinetics was described by difference equations, which relate the reactor’s parameters, corresponding to the instantaneous and preceding power pulses, and the nonlinear dependences of the energy of the power pulse and its amplitude on the reactivity. The fact that the regulated parameter of the reactor is the relative deviation of the amplitude of the power pulse from its base (prescribed average) value was taken into account. In studying transient processes, a statistically optimal filter was used to suppress the reactivity noise due to the reactor’s construction and principle of operation. The best location for inserting the filter in the block diagram of the reactimeter was chosen and the optimal smoothing coefficient determined.