RESONANT vs. NON-RESONANT NEUTRALIZATION OF MULTIPLY CHARGED IONS IN THE INTERACTION WITH SOLID SURFACES

被引:0
作者
Nedeljkovic, N. N. [1 ]
Galijas, S. M. D. [1 ]
Obradovic, M. B. [1 ]
机构
[1] Univ Belgrade, Fac Phys, Belgrade, Serbia
来源
24TH SUMMER SCHOOL AND INTERNATIONAL SYMPOSIUM ON THE PHYSICS OF IONIZED GASES, CONTRIBUTED PAPERS | 2008年 / 84期
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中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
The two-state vector model is used to investigate the intermediate stages of the electron capture into the Rydberg states of multiply charged ArVIII ion, escaping solid surface. Two cases of the ionic velocities are considered: the low velocities (upsilon approximate to 0 a.u.) and the intermediate velocities (upsilon approximate to 1 a.u.). Within the framework of the two-state vector description of the neutralization dynamics the two wave functions are used to determine the state of a single active electron. The intermediate stages of the process are characterized by the two-amplitude, the neutralization probability and rate. These quantities are obtained in two different analytical forms in the two considered cases of the projectile velocities. The key difference of the intermediate velocity case in respect to the low-velocity case, is the non-resonant character of the electron transitions. The obtained rates in the low velocity case are well localized. The neutralization rates in the intermediate velocity case are oscillatory in character. At larger ion-surface distances R the neutralization is stabilized; the behavior of the rates becomes similar to that obtained for the low ionic velocities.
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页码:165 / 168
页数:4
相关论文
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