Role of plasma edge in the direct launch Ion Bernstein Wave experiment in TFTR

Journal Article · Tue Apr 01 00:00:00 EST 1997 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.53377· OSTI ID:570269

Ono, M ^[1]; Bush, C E ^[2]; Cesario, R ^[3]; Hanson, G R ^[2]; Hosea, J; LeBlanc, B; Majeski, R ^[1]; Paoletti, F ^[4]; Phillips, C K; Rogers, J H ^[1]; Sauter, O ^[5]; Schilling, G; Wilson, J R ^[1]

---

1. Princeton Plasma Physics Laboratory, Princeton University, New Jersey (United States)
2. Oak Ridge National Laboratory, Oak Ridge, Tennessee (United States)
3. C.R.E., Association EUR-ENEA, Frascati (Italy)
4. Department of Applied Physics, Columbia University, New York (United States)
5. Association EURATOM-SUISSE, EPFL Lausanne (Switzerland)

Two types of direct IBW launching, EPW{R_arrow}IBW and CESICW{R_arrow}IBW are investigated using two numerical codes, Full Hot Plasma Ray-Tracing Code and SEMAL Full Wave Slab Code, for the TFTR direct launch IBW experimental parameters. The measured density profiles (by microwave reflectometry) in TFTR appear to be satisfactory for IBW launching while the observed stored energy rise compared to the expected value (ray tracing+TRANSP) indicates only up to 50{percent} of launched power is reaching the plasma core. Possible causes of IBW inefficiency are also discussed. {copyright} {ital 1997 American Institute of Physics.}

• Research Organization: Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC02-76CH03073
• OSTI ID: 570269
• Report Number(s): CONF-9704102-; ISSN 0094-243X; TRN: 98:003624
• Journal Information: AIP Conference Proceedings, Vol. 403, Issue 1; Conference: 12. topical conference on radio frequency power in plasmas, Savannah, GA (United States), 1-3 Apr 1997; Other Information: PBD: Apr 1997
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION
TFTR TOKAMAK
PLASMA HEATING
COMPUTERIZED SIMULATION
BERNSTEIN MODE
ANTENNAS
WKB APPROXIMATION