Radiant energy – Electrically neutral molecular or atomic beam devices and...
Patent
1982-12-20
1984-07-31
Smith, Alfred E.
Radiant energy
Electrically neutral molecular or atomic beam devices and...
2504922, 2504923, H01J 37317
Patent
active
044632550
ABSTRACT:
An apparatus for the enhanced neutralization of a positively charged particle beam has a source of primary electrons which are directed at a dummy target positioned adjacent the ion beam. The secondary electrons have a low energy and are susceptible to being entrapped within the volume of the positively charged beam. The ion beam attracts these low energy electrons until effective beam neutralization is achieved. The ions in the beam are individually neutralized when the beam strikes the target.
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Robertson David A.
Turner Norman L.
Cole Stanley Z.
Fields Carolyn E.
McClellan William R.
Smith Alfred E.
Varian Associates Inc.
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