Relativistic effects in ionization of heavy hydrogen-like ions by short x-ray pulses

被引：0
|
作者：
Novak, O. [1 ]
Diachenko, M. [1 ]
Kholodov, R. [1 ]
机构：
[1] Natl Acad Sci Ukraine, Inst Appl Phys, Petropavlivska St 58, UA-40000 Sumy, Ukraine
来源：
PHYSICA SCRIPTA | 2023年 / 98卷 / 06期
关键词：
strong field ionization; x-ray; perturbation theory; atomic processes; hydrogenic ions; ABOVE-THRESHOLD IONIZATION; GSI FUTURE FACILITY; SCIENTIFIC PROGRAM; ATOMIC PHYSICS; FIELD;
D O I：
10.1088/1402-4896/acd422
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The probability of photoionization of a heavy hydrogen like ion is calculated within the relativistic perturbation theory. The Coulomb potential of a heavy nucleus is taken into account accurately by usage of the corresponding solutions of the Dirac equation. The obtained probability is compared with both nonrelativistic limit and with nonperturbative results based on the numerical solution of the time-dependent Dirac equation. Suppression of ionization is observed in the secondary ionization channel at photon frequency of about PLANCK CONSTANT OVER TWO PI omega approximate to mc (2).
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页数：10
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