Deuterium-tritium TFTR plasmas in the high poloidal beta regime
- Columbia Univ., New York, NY (United States). Dept. of Applied Physics; and others
Deuterium-tritium plasmas with enhanced energy confinement and stability have been produced in the high poloidal beta, advanced tokamak regime in TFTR. Confinement enhancement H {triple_bond} {tau}{sub E}/{tau}{sub E ITER-89P} > 4 has been obtained in a limiter H-mode configuration at moderate plasma current I{sub p} = 0.85 {minus} 1.46 MA. By peaking the plasma current profile, {beta}{sub N dia} {triple_bond} 10{sup 8} < {beta}{sub t{perpendicular}} > aB{sub 0}/I{sub p} = 3 has been obtained in these plasma,s exceeding the {beta}{sub N} limit for TFTR plasmas with lower internal inductance, l{sub i}. Fusion power exceeding 6.7 MW with a fusion power gain Q{sub DT} = 0.22 has been produced with reduced alpha particle first orbit loss provided by the increased l{sub i}.
- Research Organization:
- Princeton Univ., NJ (United States). Plasma Physics Lab.; Columbia Univ., New York, NY (United States). Dept. of Applied Physics; Massachusetts Inst. of Tech., Cambridge, MA (United States). Plasma Fusion Center
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC02-76CH03073; FG02-89ER53297; FG02-90ER54084
- OSTI ID:
- 34433
- Report Number(s):
- PPPL--3078; IAEA-CN--60/A-5-I-6; CONF-940933--42; ON: DE95009393
- Country of Publication:
- United States
- Language:
- English
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