Exploration of Spherical Torus Physics in the NSTX Device

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The National Spherical Torus Experiment (NSTX) is being built at the Princeton Plasma Physics Laboratory to test the fusion physics principles for the Spherical Torus (ST) concept at the MA level. The NSTX nominal plasma parameters are R {sub 0} = 85 cm, a = 67 cm, R/a greater than or equal to 1.26, B {sub T} = 3 kG, I {sub p} = 1 MA, q {sub 95} = 14, elongation {kappa} less than or equal to 2.2, triangularity {delta} less than or equal to 0.5, and plasma pulse length of up to 5 sec. The plasma heating/current drive ... continued below

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Barnes, G.; Blanchard, W.; Kaye, S.; Ono, M.; Peng, M. & al., et November 1, 1998.

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Description

The National Spherical Torus Experiment (NSTX) is being built at the Princeton Plasma Physics Laboratory to test the fusion physics principles for the Spherical Torus (ST) concept at the MA level. The NSTX nominal plasma parameters are R {sub 0} = 85 cm, a = 67 cm, R/a greater than or equal to 1.26, B {sub T} = 3 kG, I {sub p} = 1 MA, q {sub 95} = 14, elongation {kappa} less than or equal to 2.2, triangularity {delta} less than or equal to 0.5, and plasma pulse length of up to 5 sec. The plasma heating/current drive (CD) tools are High Harmonic Fast Wave (HHFW) (6 MW, 5 sec), Neutral Beam Injection (NBI) (5 MW, 80 keV, 5 sec), and Coaxial Helicity Injection (CHI). Theoretical calculations predict that NSTX should provide exciting possibilities for exploring a number of important new physics regimes including very high plasma beta, naturally high plasma elongation, high bootstrap current fraction, absolute magnetic well, and high pressure driven sheared flow. In addition, the NSTX program plans to explore fully noninductive plasma start-up, as well as a dispersive scrape-off layer for heat and particle flux handling.

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877 Kilobytes

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  • Other: DE00002381
  • Report No.: PPPL-3330
  • Grant Number: AC02-76CH03073
  • DOI: 10.2172/2381 | External Link
  • Office of Scientific & Technical Information Report Number: 2381
  • Archival Resource Key: ark:/67531/metadc672795

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Office of Scientific & Technical Information Technical Reports

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  • November 1, 1998

Added to The UNT Digital Library

  • June 29, 2015, 9:42 p.m.

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  • April 15, 2016, 7:56 p.m.

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Barnes, G.; Blanchard, W.; Kaye, S.; Ono, M.; Peng, M. & al., et. Exploration of Spherical Torus Physics in the NSTX Device, report, November 1, 1998; Princeton, New Jersey. (digital.library.unt.edu/ark:/67531/metadc672795/: accessed October 17, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.