Operational limits in the National Spherical Torus Experiment

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Description

The National Spherical Torus Experiment (NSTX) is a proof-of-principle scale device whose mission is to establish the physics basis of low aspect configurations most notably in the areas of plasma stability, transport and non-inductive current drive. The first series of physics experiments was conducted during the period from Sept. 1999 through Jan. 2000. Among the first experiments was a study to map out and characterize the operational density and q-limits. Density limits have typically been associated with enhanced radiated power due to overfuelling or impurity influx, although ion neoclassical transport may impose a density limit at very high densities in ... continued below

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473 Kilobytes pages

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Kaye, S.M.; Bell, M. G.; Bell, R. E.; Gates, D.; Maingi, R.; Mazzucato, E. et al. June 12, 2000.

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Description

The National Spherical Torus Experiment (NSTX) is a proof-of-principle scale device whose mission is to establish the physics basis of low aspect configurations most notably in the areas of plasma stability, transport and non-inductive current drive. The first series of physics experiments was conducted during the period from Sept. 1999 through Jan. 2000. Among the first experiments was a study to map out and characterize the operational density and q-limits. Density limits have typically been associated with enhanced radiated power due to overfuelling or impurity influx, although ion neoclassical transport may impose a density limit at very high densities in ohmic, gas-fueled plasmas. q-limits have typically been manifestations of destabilization of m=2/n=1 kink or tearing modes that lead to a sudden discharge termination.

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473 Kilobytes pages

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INIS; OSTI as DE00757304

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  • Other Information: PBD: 12 Jun 2000

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  • Report No.: PPPL-3454
  • Grant Number: AC02-76CH03073
  • DOI: 10.2172/757304 | External Link
  • Office of Scientific & Technical Information Report Number: 757304
  • Archival Resource Key: ark:/67531/metadc710852

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  • June 12, 2000

Added to The UNT Digital Library

  • Sept. 12, 2015, 6:31 a.m.

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  • April 15, 2016, 10:05 p.m.

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Kaye, S.M.; Bell, M. G.; Bell, R. E.; Gates, D.; Maingi, R.; Mazzucato, E. et al. Operational limits in the National Spherical Torus Experiment, report, June 12, 2000; Princeton, New Jersey. (digital.library.unt.edu/ark:/67531/metadc710852/: accessed September 21, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.