Inner-shell ionization cross sections of atoms by positron impact

被引：0

作者：

Wang, Yuan-Cheng ^{[1
,2
,3
]}

Ma, Jia ^{[4
]}

Jiao, Li-Guang ^{[2
,3
,5
]}

Fritzsche, Stephan ^{[2
,3
,6
]}

机构：

[1] Shenyang Normal Univ, Coll Phys Sci & Technol, Shenyang 110034, Peoples R China

[2] Helmholtz Inst Jena, D-07743 Jena, Germany

[3] GSI Helmholtzzentrum Schwerionenforschung GmbH, D-64291 Darmstadt, Germany

[4] Shenyang Aerosp Univ, Coll Sci, Shenyang 110136, Peoples R China

[5] Jilin Univ, Coll Phys, Changchun 130012, Peoples R China

[6] Friedrich Schiller Univ Jena, Theoret Phys Inst, Jena, Germany

来源：

COMMUNICATIONS IN THEORETICAL PHYSICS | 2024年 / 76卷 / 06期

基金：

中国国家自然科学基金;

关键词：

positron scattering; ionization cross section; binary-encounter-Bethe model; ELECTRON; SCATTERING; HYDROGEN;

D O I：

10.1088/1572-9494/ad3907

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The relativistic binary-encounter-Bethe model with Wannier-type threshold law is employed to obtain the inner-shell ionization cross sections of multi-electron atoms (Ni, Cu, Y, Ag, Au, Yb, Ta, and Pb) for positron impact energies from the thresholds up to 105 keV. There is good agreement between the present calculations and the experimental data. The constant in the acceleration term derived from the Wannier law is determined to be 0.2 and 0.5 for the K- and L-shells, respectively.

引用

页数：6

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