原子和分子结构对电子阻止本领Se(E)的Z振荡的影响
THE EFFECT OF THE ATOMIC OR MOLECULAR STRUCTURE ON Z-OSCILLATION OF ELECT RON-STOPPING POWER
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摘要: 本文在Firsov理论基础上,引入Slater波函数等概念,解释了原子结构对Se(E)的Z振荡的影响。它不仅能解释常规能量范围内(101000keV)的轻元素靶和重元素靶的Z振荡行为,而且能解释更高的能量范围内(10100MeV)Z振荡行为。本文引用了分子轨道法理论来处理分子靶问题,导出了分子结构对Se(E)的Z振荡影响的方程式,使能处理相当宽的能量范围内的分子靶的Se(E)的Z振荡问题。应用本文方法所得结果与Z1C和Li+Z2靶的Z1(或Z2)振荡的实验结果进行了比较,同时还与在较高能量范围的S+Na和F+Ag系统的实验结果作了比较,都得到了满意的结果,说明本文提出的方法是令人满意的。
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关键词:
- Z振荡; 电子阻止本领; 原子和分子结构
Abstract: Based on Firsov theory (1959), the concept of the Slater wave function etc. is introduced, then the equation of the effect of atomic structure on Z-oscillation of Se(E) is derived. And by using the molecular orbital theory, the equation of the effect of the molecular structure on Z oscillation of,Se(E) is obtained. These obtained equatio nare suitable for light or heavy element target not only in the lower energy range (10-1000 keV), but also at the higher energy.The results calculated with these equations for Z1C and Li+Z2 in the lower energy range, S+Na and F+Agin the higher energy range, and H+-CdTe all are in good agreement with the experimental ones given in the literatures. -
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