Progress in nuclear data measurement of long-lived fission products

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作者：
China Institute of Atomic Energy, P.O. Box 275-26, Beijing 102413, China [1 ]
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来源：
Yuanzineng Kexue Jishu | 2006年 / 2卷 / 199-205期
关键词：
Atoms - Geology - Neutrons - Nuclear physics - Purification - Radioactive waste disposal - Radioactivity - Separation;
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摘要：
The long-lived fission products (LLFPs) are critical nuclides for geological disposal and partitioning-transmutation of high-level waste. This paper reviews the measurement, present status and the progress of fission products nuclear data, such as half-life, fission yield and thermal neutron cross section for 13 long-lived fission products with the half-life of more than 10 a and fission yields of more than 0.01%. The radiochemical separation and purification, measurements of atom number and radioactivity of the long-lived nuclides in the field of measurement of fission products nuclear data are discussed and some interesting ideas are pointed out.
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