Results from energetic electron beam metal vapor vacuum arc and Z-discharge plasma metal vapor vacuum arc: Development of new sources of intense high charge state heavy-ion beams
- Brookhaven National Laboratory, Upton, New York 11973-5000 (United States)
- Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States)
We are exploring a new approach for heavy-ion beam injection (e.g., into the relativistic heavy-ion collider at BNL), as well as new sources of intense high charge state ions to be mounted on a relatively low voltage platform for high energy ion implantation. While conventional metal vapor vacuum arc (Mevva) ion sources can produce up to hundreds of milliamps or more of several-times-ionized metal ions (e.g., U3+), the recent results from Batalin {ital et al.} indicate that the addition of an energetic electron beam may lead to considerably higher charge states. An alternative way to produce the electron beam is where a Z-discharge plasma is used to enhance multiple ionization. As the vacuum arc plasma plume expands into a magnetized drift region, a Z-discharge is triggered in the drifting metal plasma. The ions are then extracted and analyzed using a time-of-flight system. We report initial results using these schemes with applied discharge and electron beam voltages from 1 to 2 kV. {copyright} {ital 1998 American Institute of Physics.}
- OSTI ID:
- 591898
- Report Number(s):
- CONF-980145-; ISSN 0034-6748; TRN: 98:004857
- Journal Information:
- Review of Scientific Instruments, Vol. 69, Issue 2; Conference: 7. international conference on ion sources, Shirahama (Japan), 26-27 Jan 1998; Other Information: PBD: Feb 1998
- Country of Publication:
- United States
- Language:
- English
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