首页> 外文期刊>Journal of Nuclear Physics, Material Sciences, Radiation and Applications >Study of Excitation Functions of (p, n) Reactions for 56 Fe and 57 Fe Target from Threshold to 30 MeV
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Study of Excitation Functions of (p, n) Reactions for 56 Fe and 57 Fe Target from Threshold to 30 MeV

机译:从阈值到30 MeV对 56 Fe和 57 Fe目标的(p,n)反应激发函数的研究

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The theoretical calculation of the cross section for formation of ~(56,57) c o in (p, n) reaction from ~(56,57) Fe target have been studied from reaction threshold to 30 MeV using TAL y S-1.4 nuclear model reaction code whereby we have studied major nuclear reaction mechanisms, including direct, pre- equilibrium and compound nuclear reactions. These calculations were carried out by adjusting the effective imaginary potential, level density and shell damping parameters. It is observed that an excellent agreement between the theoretical calculated and experimental data is obtained with minimal effort on parameter fitting. w e have also observed that there is significant contribution of pre-equilibrium emission in (p, n) reaction cross-section of ~(56) Fe and ~(57) Fe. The systematic increase in (p, n) cross-sections with increasing neutron number in reactions induced by protons on ~(56) Fe and ~(57) Fe is explained in terms of compound and pre-equilibrium mode.
机译:使用TAL y S-1.4核模型研究了从〜(56,57)Fe目标在(p,n)反应中形成〜(56,57)co的截面的理论计算,从反应阈值到30 MeV。我们已经研究了主要的核反应机理,包括直接反应,预平衡反应和复合核反应。这些计算是通过调整有效假想电势,能级密度和壳体阻尼参数来进行的。可以观察到,在参数拟合上花费了最小的努力,从而在理论计算值和实验数据之间获得了极好的一致性。我们还观察到,在〜(56)Fe和〜(57)Fe的(p,n)反应截面中,平衡前发射有很大贡献。由质子在〜(56)Fe和〜(57)Fe上引起的质子反应中,随着中子数的增加,(p,n)截面的系统增加用化合物和预平衡模式解释。

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