Plasma production and flow in negative ion beams
Conference
·
OSTI ID:5365321
Plasma generated in low-density vapor by a negative ion beam has been studied experimentally and computationally. We show that space charge neutralization of the beam occurs at very low vapor density, and that correspondingly the electron density may be much less than the beam and plasma ion densities. When there is a large local gas density, as in a charge changing cell, the resulting high electron density is also localized to the same region. Therefore, very few electrons will reach a negative ion accelerator even if it is placed one or two beam diameters from such a cell.
- Research Organization:
- California Univ., Livermore (USA). Lawrence Livermore Lab.
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 5365321
- Report Number(s):
- UCRL-80099; CONF-770940-5; TRN: 78-003045
- Resource Relation:
- Conference: Symposium on the production and neutralization of negative hydrogen ions and beams, Upton, NY, USA, 26 Sep 1977
- Country of Publication:
- United States
- Language:
- English
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