【摘 要】
：
用扩散模型考察了轻的幻核100Sn在裂变过程中蒸发的轻粒子多重性．发现壳仅对质子的发射有很强的影响,而对中子几乎没有影响,这与132Sn核的情况正好相反．因此把这种现象归因于系
【机 构】
：
东南大学物理系 南京 210096
论文部分内容阅读
用扩散模型考察了轻的幻核100Sn在裂变过程中蒸发的轻粒子多重性．发现壳仅对质子的发射有很强的影响,而对中子几乎没有影响,这与132Sn核的情况正好相反．因此把这种现象归因于系统中质比(N／Z)的影响．通过比较加104Sn和100Sn发射的粒子,N／Z的影响得到了进一步证实．计算发现高激发能弱化了N／Z效应．
The diffusion model was used to investigate the multiplicity of light particles evaporating during the fission of the light phantom 100Sn. The shell was found to have a strong effect on the emission of protons but little on neutrons, as opposed to the 132Sn core. Therefore, this phenomenon is attributed to the influence of the system’s mass ratio (N / Z). The effect of N / Z is further confirmed by comparing the particles emitted with 104Sn and 100Sn. Calculations show that high excitation energy attenuates the N / Z effect.
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