Stopping powers and ranges of electrons and positrons
Stopping powers and ranges of electrons and positrons
复制标题
电子和正电子的阻止本领和射程
DOI：
10.6028/nbs.ir.82-2550
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发表时间：
1982
影响因子：
6
通讯作者：
S. Seltzer
中科院分区：
文献类型：
--
作者：
M. J. Berger;S. Seltzer
翻译后摘要：表的阻止功率和相关数据给出的电子在37种元素和60种化合物，并在8种材料的位置。表中包括：（1）碰撞阻止本领;（2）辐射阻止本领;（3）总阻止本领;（4）射程（用连续减速近似计算）;（5）辐射产额（电子能量转化为韧致辐射的分数）;（6）所有这些量对介质平均激发能的对数导数。这些结果是在1000 MeV和10 keV之间的81个能量下给出的。限制碰撞阻止功率列表选定的材料，截止能量为1，10和100千电子伏。编制这些表的主要新内容是：（1）根据从停止功率测量和对实验激发强度分布和介电响应函数的分析中得到的最佳数据，修订和更新了进入贝特停止功率公式的平均激发能;（2）使用Sternheimer和Peierls的一般公式对碰撞阻止本领进行密度效应修正;（3）使用Tseng和Pratt的理论韧致辐射截面。（作者）
Abstract : Tables of stopping powers and related data are given for electrons in 37 elements and 60 compounds, and for positions in 8 materials. The tables include (1) collision stopping powers (2) radiative stopping powers, (3) total stopping powers, (4) ranges (computed in the continuous-slowing-down approximation), (5) radiation yields (fraction of electron energy converted into bremsstrahlung), and (6) the logarithmic derivatives of all these quantities with respect to the mean excitation energy of the medium. These results are given at 81 energies between 1000 MeV and 10 keV. Restricted collision stopping powers are tabulated for selected materials, with cut-off energies of 1, 10 and 100 keV. The principal new ingredients in the preparation of these tables were: (1) a revision and updating of the mean excitation energies which enter into the Bethe stopping-power formula, on the basis of the best available data from stopping-power measurements and analyses of experimental oscillator-strength distributions and dielectric-response functions; (2) use of the general formulation of Sternheimer and Peierls for the density-effect correcting to the collision stopping power; and (3) use of theoretical bremsstrahlung cross sections of Tseng and Pratt. (Author)