|Author||Balanin, A. L. ♦ Boyarinov, V. F. ♦ Glushkov, E. S. ♦ Zimin, A. A. ♦ Kompaniets, G. V. ♦ Nevinitsa, V. A. ♦ Moroz, N. P. ♦ Fomichenko, P. A. ♦ Timoshinov, A. V. ♦ Volkov, Yu. N.|
|Source||United States Department of Energy Office of Scientific and Technical Information|
|Subject Keyword||SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS ♦ ATOMIC AND MOLECULAR PHYSICS ♦ ASYMMETRY ♦ BUCKLING ♦ CONTROL ELEMENTS ♦ EFFICIENCY ♦ EXPERIMENTAL DATA ♦ FISSION ♦ HTGR TYPE REACTORS ♦ MOCKUP ♦ NUMERICAL ANALYSIS ♦ REACTION KINETICS ♦ REACTOR PROTECTION SYSTEMS ♦ THREE-DIMENSIONAL CALCULATIONS ♦ ZERO POWER REACTORS|
|Abstract||The application of experimental information on measured axial distributions of fission reaction rates for development of 3D numerical models of the ASTRA critical facility taking into account azimuthal asymmetry of the assembly simulating a HTGR with annular core is substantiated. Owing to the presence of the bottom reflector and the absence of the top reflector, the application of 2D models based on experimentally determined buckling is impossible for calculation of critical assemblies of the ASTRA facility; therefore, an alternative approach based on the application of the extrapolated assembly height is proposed. This approach is exemplified by the numerical analysis of experiments on measurement of efficiency of control rods mockups and protection system (CPS).|
|Learning Resource Type||Article|
|Publisher Place||United States|
|Journal||Physics of Atomic Nuclei|
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