十年来核裂变电荷分布研究的新进展

    PROGRESS ON THE NUCLEAR CHARGE DISTRIBUTION IN FISSION IN THE LAST DECADE

    • 摘要: 近十年来电荷分布研究取得了显著进展。独立产额测量技术的进步加快了实验数据积累,得到了较为丰富的信息。在分析总结现有效据基础上提出并建立了某些新的电荷分布经验模型。新模型为低能核裂变电荷分布系统学研究、独立产额实验数据评价和预报提供了一个更为有效的方法。

       

      Abstract: The progress on the nuclear charge distribution in low energy fission of actinide is reviewed briefly. The improvements in existing radiochemical and physical techniques have resulted in a great number of new results of independent yields in the last decade. From all available data concerning nuclear charge distribution in fission, the new Zp and A'p empirical models, which describe, respectively, charge dispersion for constant mass number and mass number dispersion for constant atomic number have been developed. The variation of parameters in empirical models with the Z, A, and excitation energy of the fission nucleus indicates the some systematic trends for nuclear charge distribution in low energy fission.

       

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