Absolute cross sections for single and double charge-exchange in Feq+ impacting on He

被引：14

作者：

Cadez, I

Greenwood, JB

Lozano, J

Mawhorter, RJ

Niimura, M

Smith, SJ

Chutjian, A

机构：

[1] CALTECH, Jet Prop Lab, Pasadena, CA 91109 USA

[2] Jozef Stefan Inst, Dhaka 1000, Bangladesh

[3] Queens Univ Belfast, Dept Phys, Belfast BT7 1NN, Antrim, North Ireland

[4] Pomona Coll, Dept Phys & Astron, Claremont, CA 91711 USA

来源：

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS | 2003年 / 36卷 / 15期

关键词：

D O I：

10.1088/0953-4075/36/15/311

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We report measured absolute single and double charge-exchange cross sections (CSs) for Feq+ ions with He at the ion impact energy of 7.0 x q keV for q = 5-13. The range of ion velocities is 350 km s(-1) for q = 5, to 560 km s(-1) for q = 13, comparable to typical solar wind velocities. A retarding-field method is used for charge-state analysis of the ion beam after traversing the stationary target gas cell. The CSs are determined from absolute measurements of the ion currents and He target gas pressure.

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页码：3303 / 3314

页数：12

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