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Physics Design of the National Spherical Torus Experiment

1999; American Nuclear Society; Volume: 36; Issue: 1 Linguagem: Inglês

10.13182/fst99-a88

0748-1896

S. Kaye, M. Ono, Y.K.M. Peng, D. B. Batchelor, Mark D. Carter, Wonho Choe, R.J. Goldston, Yong‐Seok Hwang, E. F. Jaeger, T. R. Jarboe, S.C. Jardin, D. Johnson, R. Kaita, C. Kessel, H. Kugel, R. Maingi, R. Majeski, Janhardan Manickam, J. Ménard, D. R. Mikkelsen, D. J. Orvis, B. A. Nelson, Franco Paoletti, Neil Pomphrey, G. Rewoldt, S.A. Sabbagh, D.J. Strickler, E. J. Synakowski, J. R. Wilson,

Computational Physics and Python Applications

AbstractThe mission of the National Spherical Torus Experiment (NSTX) is to prove the principles of spherical torus physics by producing high-βt plasmas that are noninductively sustained and whose current profiles are in steady state. The NSTX will be one of the first ultralow-aspect-ratio tori (R/a ≤ 1.3) to operate at high power (Pinput up to 11 MW) to produce high-βt (25 to 40%), low-collisionality, high-bootstrap-fraction (≤70%) discharges. Both radio-frequency and neutral beam heating and current drive will be employed. Built into the NSTX is sufficient configurational flexibility to study a range of operating space and the resulting dependences of the confinement, micro- and magnetohydrodynamic stability, and particle- and power-handling properties. NSTX research will be carried out by a nationally based science team.