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Radio-frequency He/sup -/ source and a source of negative ions by cesium sputtering

Conference ·
OSTI ID:5220778
Two sources of negative ions are described. An rf source produces up to 14 ..mu..A beams of He/sup -/ by charge exchange in Rb vapor. The other Source of Negative Ions by Cesium Sputtering (SNICS) produces a wide variety of negative ion beams in the ..mu..A range. Two important features of SNICS are its simple, compact construction and its very good beam emittance (2 to 4 ..pi..mm mrad MeV/sup 1/). Both sources have lifetimes >200 hours and they are used extensively on the Wisconsin EN tandem.
Research Organization:
Wisconsin Univ., Madison (USA)
DOE Contract Number:
AC02-76ER00007
OSTI ID:
5220778
Report Number(s):
DOE/ER/00007-931; CONF-801111-59; ON: DE82011121
Country of Publication:
United States
Language:
English