ELECTRON-EMISSION IN COLLISIONS OF SLOW, HIGHLY CHARGED IONS WITH GASES AND SOLID-SURFACES

被引:21
作者
KOHRBRUCK, R
LECLER, D
FREMONT, F
RONCIN, P
SOMMER, K
ZOUROS, TJM
BLECK-NEUHAUS, J
STOLTERFOHT, N
机构
[1] UNIV CRETE, DEPT PHYS, GR-71409 Iraklion, GREECE
[2] UNIV BREMEN, FACHBEREICH 1, W-2800 BREMEN 33, GERMANY
[3] UNIV PARIS 11, COLLIS ATOM LAB, F-91405 ORSAY, FRANCE
[4] HAHN MEITNER INST KERNFORSCH BERLIN GMBH, W-1000 BERLIN 39, GERMANY
关键词
D O I
10.1016/0168-583X(91)96010-I
中图分类号
TH7 [仪器、仪表];
学科分类号
0804 ; 080401 ; 081102 ;
摘要
We measured electron spectra produced in O6+ + He collisions and by N6+, O7+, Ne9+, and Ar(q+) (q = 9, 13, 14 and 16) incident on solid surfaces of Cu and C under 10-degrees with energies from 10q to 20q keV. Auger electrons were detected at various emission angles including 0-degrees and 180-degrees with respect to the incident beam. For the He gas target the angular distribution of oxygen L-Auger electrons is found to be isotropic between 10-degrees and 140-degrees but enhanced at 0-degrees. In ion-surface collisions, multiple electron capture is studied. By analyzing the Doppler shift of the projectile Auger electrons, the L-Auger electrons of argon were found to be emitted from ions incident on the surface and the K-Auger electrons of neon were observed to be emitted from reflected ions.
引用
收藏
页码:219 / 222
页数:4
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