Impact of the Wall Conditioning Program on Plasma Performance in NSTX

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Description

High performance operating regimes have been achieved on NSTX (National Spherical Torus Experiment) through impurity control and wall-conditioning techniques. These techniques include HeGDC-aided boronization using deuterated trimethylboron, inter-discharge HeGDC, 350 C PFC bake-out followed by D2 and HeGDC, and experiments to test fueling discharges with either a He-trimethylboron mixture or pure trimethylboron. The impact of this impurity and density control program on recent advances in NSTX plasma performance is discussed.

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362 Kilobytes pages

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Kuge, H. W.; Soukhanovskii, V.; Bell, M.; Blanchard, W.; Gates, D.; LeBlanc, B. et al. July 12, 2002.

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Description

High performance operating regimes have been achieved on NSTX (National Spherical Torus Experiment) through impurity control and wall-conditioning techniques. These techniques include HeGDC-aided boronization using deuterated trimethylboron, inter-discharge HeGDC, 350 C PFC bake-out followed by D2 and HeGDC, and experiments to test fueling discharges with either a He-trimethylboron mixture or pure trimethylboron. The impact of this impurity and density control program on recent advances in NSTX plasma performance is discussed.

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362 Kilobytes pages

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INIS; OSTI as DE00808369

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  • Other Information: PBD: 12 Jul 2002

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  • Report No.: PPPL-3725
  • Grant Number: AC02-76CH03073
  • Office of Scientific & Technical Information Report Number: 808369
  • Archival Resource Key: ark:/67531/metadc739128

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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  • July 12, 2002

Added to The UNT Digital Library

  • Oct. 18, 2015, 6:40 p.m.

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  • July 13, 2017, 3:39 p.m.

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Kuge, H. W.; Soukhanovskii, V.; Bell, M.; Blanchard, W.; Gates, D.; LeBlanc, B. et al. Impact of the Wall Conditioning Program on Plasma Performance in NSTX, report, July 12, 2002; Princeton, New Jersey. (digital.library.unt.edu/ark:/67531/metadc739128/: accessed November 21, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.