Radio frequency-driven energetic tritium ion tail measurements in the Tokamak Fusion Test Reactor using the pellet charge exchange diagnostic
- General Atomics ORAU Fellow, San Diego, California 92186 (United States)
- General Atomics, San Diego, California 92186 (United States)
- Princeton Plasma Physics Laboratory, Princeton, New Jersey 08543 (United States)
- A. F. Ioffe Physical-Technical Institute, St. Petersburg, 194021 (Russia)
Charge exchange interactions of ions with the ablation cloud of an injected low-Z impurity pellet can be used to measure the energy spectrum and radial profile of confined fast ions in a fusion plasma. On the Tokamak Fusion Test Reactor we use this technique to directly measure energetic alphas from D{endash}T reactions, tritons from D{endash}D reactions, and radio frequency (rf)-driven minority tail ions (e.g., H, {sup 3}He, T). We describe the status of the pellet charge exchange (PCX) diagnostic including a brief description of the measurement technique and discussion of operational experience. PCX measurements of the energy spectrum, radial density distribution, and heating deposition profile of rf-driven tritium ions during 2{Omega}{sub T} heating of L-mode plasmas are presented. {copyright} {ital 1997 American Institute of Physics.}
- Research Organization:
- Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
- DOE Contract Number:
- AC02-76CH03073
- OSTI ID:
- 451734
- Report Number(s):
- CONF-960543-; ISSN 0034-6748; TRN: 97:006122
- Journal Information:
- Review of Scientific Instruments, Vol. 68, Issue 1; Conference: 11. annual high-temperature plasma diagnostics conference, Monterey, CA (United States), 12-16 May 1996; Other Information: PBD: Jan 1997
- Country of Publication:
- United States
- Language:
- English
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