原子核的体积效应对类铍离子轨道半径和能级的影响  

The influences of the finite nuclear effects size on the radius and levels of beryllium-like ions

作　　者：郑曙东[1] 

机构地区：[1]青海大学基础部,青海西宁810016

出　　处：《青海大学学报（自然科学版）》2017年第4期91-94,共4页Journal of Qinghai University(Natural Science)

基　　金：青海大学中青年科研基金项目(2013-QGY-5)

摘　　要：为了分析原子核的体积效应对原子结构的影响,文中在全相对论理论框架下,运用grasp92程序包,从典型的多电子体系元素——类铍元素出发,计算了Fermi核与点电荷核模型下类铍元素的轨道半径差和轨道能级差,分析原子核的有限体积效应对多电子体系元素的影响。结果表明:核的有限体积效应对类铍元素特别是对其内壳层电子的轨道半径和轨道能的有着复杂影响,采用Fermi核模型是提高相关计算精度的有效方法。In order to study the influences of the finite nuclear size effects on the atomic structure, based on the relativity theory and taking the typical multi - electron system element - beryllium - like as an object, the orbital radius and the energy levels difference of beryllium - like element were calculated between Piont - like nuclear and Fermi nuclear models in the grasp92 package. The finite nuclear size effects on multi - electron system were analyzed. The results show that the finite volume effect of the nucleus has a complex effect on the orbital radius and orbital energy of the electrons in the inner shell. The Fermi nuclear model is an effective method to improve the calculation accuracy of atomic structure.

关 键 词：轨道半径 体积效应 原子核 能级差 类铍离子 多电子体系 计算精度 相对论理论 

分 类 号：O562.1[理学—原子与分子物理]