Measurements of Plasma Expansion due to Background Gas in the Electron Diffusion Gauge Experiment
The expansion of pure electron plasmas due to collisions with background neutral gas atoms in the Electron Diffusion Gauge (EDG) experiment device is observed. Measurements of plasma expansion with the new, phosphor-screen density diagnostic suggest that the expansion rates measured previously were observed during the plasma's relaxation to quasi-thermal-equilibrium, making it even more remarkable that they scale classically with pressure. Measurements of the on-axis, parallel plasma temperature evolution support the conclusion.
- Research Organization:
- Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC) (US)
- DOE Contract Number:
- AC02-76CH03073
- OSTI ID:
- 814741
- Report Number(s):
- PPPL-3853; TRN: US0304343
- Resource Relation:
- Other Information: PBD: 11 Aug 2003
- Country of Publication:
- United States
- Language:
- English
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