FORMATION OF HE- IONS IN CHARGE-CHANGING COLLISIONS DURING PASSAGE OF FAST HELIUM BEAMS THROUGH HYDROGEN

被引：26

作者：

GILBODY, HB

BROWNING, R

DUNN, KF

MCINTOSH, AI

机构：

来源：

JOURNAL OF PHYSICS PART B ATOMIC AND MOLECULAR PHYSICS | 1969年 / 2卷 / 04期

关键词：

D O I：

10.1088/0022-3700/2/4/305

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The role of fast metastable helium atoms in the formation of He- ions by charge-changing collisions during the passage of 100 kev helium beams through hydrogen has been investigated quantitatively. It is shown that He - ions are formed by collisions involving one-electron capture by fast metastable helium atoms while all other possible production mechanisms are found to be relatively insignificant. A lower bound of 5·4 ± 0·4 × 10-18 cm2 is obtained for the cross section for He- formation from He(2 3S) atoms.

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页码：465 / &

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