Alpha diagnostics using pellet charge exchange: Results on TFTR and prospects for ITER

Conference · Wed May 01 00:00:00 EDT 1996

OSTI ID:378873

Fisher, R K; Duong, H H; McChesney, J M ^[1]

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1. and others

Confinement of alpha particles is essential for fusion ignition and alpha physics studies are a major goal of the TFTR, JET, and ITER DT experiments, but alpha measurements remain one of the most challenging plasma diagnostic tasks. The Pellet Charge Exchange (PCX) diagnostic has successfully measured the radial density profile and energy distribution of fast (0.5 to 3.5 MeV) confined alpha particles in TFTR. This paper describes the diagnostic capabilities of PCX demonstrated on TFTR and discusses the prospects for applying this technique to ITER. Major issues on ITER include the pellet`s perturbation to the plasma and obtaining satisfactory pellet penetration into the plasma.

• Research Organization: General Atomics, San Diego, CA (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: FG03-92ER54150
• OSTI ID: 378873
• Report Number(s): GA-A22339; CONF-960543-34; ON: DE96014774; TRN: 97:004309
• Resource Relation: Conference: 11. annual high-temperature plasma diagnostics conference, Monterey, CA (United States), 12-16 May 1996; Other Information: PBD: May 1996
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION
TFTR TOKAMAK
PLASMA DIAGNOSTICS
ITER TOKAMAK
CHARGE EXCHANGE
PELLET INJECTION
ALPHA PARTICLES
ENERGY SPECTRA
SPATIAL DISTRIBUTION
D-T OPERATION
IONIC COMPOSITION
ION DENSITY