Emission of Negative Ions from Metal Surfaces Bombarded by Positive Cesium Ions
Journal Article
·
· Journal of Applied Physics
High yields (>1%) of negative metal ions, usually including clusters of metal atoms and oxides, are observed from targets of Cu, Ag, Au, Be, Cd, Al, Sn, Ta, W, and Ni bombarded by a beam of positive cesium ions. The increase observed in the negative-ion yields when an auxiliary beam of neutral cesium is directed at a copper target indicates that the presence of cesium on the target is an important factor in the production of large numbers of negative ions. From targets of aluminum and tin, respectively, the Al2 and Sn2 yields are an order of magnitude greater than the corresponding single-atom yields.
- Research Organization:
- Space Technology Labs., Inc., Redondo Beach, Calif.
- Sponsoring Organization:
- USDOE
- NSA Number:
- NSA-17-005087
- OSTI ID:
- 4756307
- Journal Information:
- Journal of Applied Physics, Vol. 33, Issue 12; Other Information: Orig. Receipt Date: 31-DEC-63; ISSN 0021-8979
- Publisher:
- American Institute of Physics (AIP)
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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