Formation of a Narrow Radial Density Profile of Fast Ions in the GDT Device
- Budker Institute of Nuclear Physics, Siberian Division, Russian Academy of Sciences, pr. Akademika Lavrent'eva 11, Novosibirsk, 630090 (Russian Federation)
The radial density profile of fast ions with a mean energy of 10 keV is measured in experiments with a two-component high-{beta} plasma in the GDT device. Fast ions are produced by injecting neutral beams into a warm plasma. The measured fast-ion density profile is found to be narrower than that calculated with allowance for the neutral beam trapping and Coulomb scattering. Special experiments with a movable limiter have indicated that the formation of a narrow fast-ion density profile in GDT cannot be attributed to the loss of fast ions. Possible mechanisms responsible for this effect are discussed.
- OSTI ID:
- 20718847
- Journal Information:
- Plasma Physics Reports, Journal Name: Plasma Physics Reports Journal Issue: 11 Vol. 31; ISSN PPHREM; ISSN 1063-780X
- Country of Publication:
- United States
- Language:
- English
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