Grouping in Partitioning of HLW for Burning and/or Transmutation with Nuclear Reactors

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著者

    • KITAMOTO Asashi
    • Research Laboratory for Nuclear Reactors, Tokyo Institute of Technology
    • MULYANTO
    • Research Laboratory for Nuclear Reactors, Tokyo Institute of Technology

抄録

A basic concept on partitioning and transmutation treatment by neutron reaction was developed in order to improve the waste management and the disposal scenario of high level waste (HLW). The grouping in partitioning was important factor and closely linked with the characteristics of B/T (burning and/or transmutation) treatment. The selecting and grouping concept in partitioning of HLW was proposed herein, such as Group MA1 (Np, Am, and unrecovered U and Pu), Group MA2 (Cm, Cf etc.), Group A (Tc and I), Group B (Cs and Sr) and Group R (the partitioned remain of HLW), judging from the three criteria for B/T treatment proposed in this study, which is related to (1) the value of hazard index for long-term tendency based on ALI, (2) the relative dose factor related to the mobility or retardation in ground water penetrated through geologic layer, and (3) burning and/or transmutation characteristics for recycle B/T treatment and the decay acceleration ratio by neutron reaction. Group MA1 and Group A could be burned effectively by thermal B/T reactor. Group MA2 could be burned effectively by fast B/T reactor. Transmutation of Group B by neutron reaction is difficult, therefore the development of radiation application of Group B (Cs and Sr) in industrial scale may be an interesting option in the future. Group R, i.e. the partitioned remains of HLW, and also a part of Group B should be immobilized and solidified by the glass matrix. HI<SUB>ALI</SUB>, the hazard index based on ALI, due to radiotoxicity of Group R can be lower than HI<SUB>ALI</SUB> due to standard mill tailing (smt) or uranium are after about 300 years.

収録刊行物

  • Journal of nuclear science and technology

    Journal of nuclear science and technology 32(6), 565-576, 1995-06-25

    Atomic Energy Society of Japan

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各種コード

  • NII論文ID(NAID)
    10002072783
  • NII書誌ID(NCID)
    AA00703720
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    00223131
  • データ提供元
    CJP書誌  CJP引用  J-STAGE 
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