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Golkovsky, M.

Paper Title Page
MOPC089 About Carbides-made Nanoceramics Fission Target for RIB Production 268
 
  • V. Gubin, M. Golkovsky
    BINP SB RAS, Novosibirsk
  • O. Alyakrinsky
    INFN/LNL, Legnaro, Padova
  • S. P. Bardakhanov
    SB RAS Khristianovich Institute of Theoretical and Applied Mechanics, Novosibirsk
 
  Intensities of RIBs can be increased with improvement of release efficiency of fission targets. One of factor, which limits release efficiency of targets, is efficiency of release of isotopes from target material. This paper presents investigation of dependence of release efficiency from ceramics target on its grain size and inter-grains pores, as well shows some efficiency limits and ways to improve it. Simulations were performed for uniform target material made from powder of uranium carbide. Inter-grain spaces are taken relative to grain sizes, as another parameter to optimize is high density of target material. Results show that optimal grain size is in the range of hundreds - thousands nanometers, while recent target materials utilize one order more sizes of grains. In addition, key points of production of such ceramics are discussed. The beam technologies allow producing the nanopowders from carbides of different metals with controlled grain size. Exact methods also give to us possibilities to obtain ceramics with optimal ratio between grain and pores sizes. Possible problems and preliminary program of experiments and tests are discussed.