Confinement of high-density pellet-fueled discharges in TFTR

S. L. Milora, G. L. Schmidt, V. Arunasalam, M. G. Bell, M. Bitter, C. E. Bush, S. K. Combs, P. C. Efthimion, A. C. England, E. Fredrickson, Robert James Goldston, B. Grek, L. Grisham, R. J. Hawyrluk, W. Heidbrink, H. W. Hendel, K. W. Hill, D. Johnson, L. C. Johnson, P. LaMarcheR. Little, D. Mansfield, D. C. McCune, K. McGuire, D. M. Meade, D. Mueller, E. B. Nieschmidt, D. K. Owens, H. Park, A. T. Ramsey, J. F. Schivell, S. Sesnic, F. Stauffner, B. L. Stratton, G. Taylor, H. H. Towner, R. M. Wieland, J. B. Wilgen, M. C. Zarnstorff

Research output: Contribution to journalArticle

12 Scopus citations

Abstract

High-density plasmas with peak-to-average values greater than two have been produced by pellet injection in TFTR. In ohmically heated plasmas at 1.6 MA, ntau values of 1.4 x 1014 cm-3. s have been achieved. Tangential neutral beam injection in these plasmas is characterized by power deposition profiles peaked near the q = 2 surface, values of global confinement that do not deteriorate relative to those obtained in gas-fueled cases with more centrally peaked power deposition profiles, and a strong transient reheat of the central plasma during which the central energy confinement time exceeds 1 s.

Original languageEnglish (US)
Article number020
Pages (from-to)1435-1439
Number of pages5
JournalPlasma Physics and Controlled Fusion
Volume28
Issue number9 A
DOIs
StatePublished - Dec 1 1986

All Science Journal Classification (ASJC) codes

  • Nuclear Energy and Engineering
  • Condensed Matter Physics

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