For questions to make up resource testing of high-enriched thermionic assemblies in water-cooled and water moderated reactor like the WWR type

Results of study for validity of possibility conducting resource testing of high-enriched thermionic assemblies for space reactor on fast neutrons in the WWR type testing reactor core are given. Using of control system with absorption gas - He 3 allows achieve conditions maximum approximate to natural one by such parameters as absolute value and profile of energy isolations in fuel compositions, neutron field spectra etc. Experiments made up on critical testing stand. Brief description of experimental devices and using methods are given