Practical beta limit in ITER-shaped discharges in DIII-D and its increase by higher collisionality

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The maximum beta which can be sustained for a long pulse in ITER-shaped plasmas in DIII-D with q{sub 95} {approx_gt} 3, ELMs, and sawteeth is found to be limited by resistive tearing modes, particularly m/n = 3/2 and 2/1. At low collisionality comparable to that which will occur in ITER, the beta limit is a factor of two below the usually expected n = {infinity} ballooning and n = 1 kink ideal limits.

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12 p.

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La Haye, R.J.; Chu, M.S. & Callen, J.D. October 1, 1996.

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Description

The maximum beta which can be sustained for a long pulse in ITER-shaped plasmas in DIII-D with q{sub 95} {approx_gt} 3, ELMs, and sawteeth is found to be limited by resistive tearing modes, particularly m/n = 3/2 and 2/1. At low collisionality comparable to that which will occur in ITER, the beta limit is a factor of two below the usually expected n = {infinity} ballooning and n = 1 kink ideal limits.

Physical Description

12 p.

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INIS; OSTI as DE97003362

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  • 16. International Atomic Energy Agency (IAEA) international conference on plasma physics and controlled nuclear fusion research, Montreal (Canada), 7-11 Oct 1996

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  • Other: DE97003362
  • Report No.: GA--A22427
  • Report No.: CONF-961005--16
  • Grant Number: AC03-89ER51114;AC02-76CH03073;FG02-92ER54139
  • Office of Scientific & Technical Information Report Number: 453506
  • Archival Resource Key: ark:/67531/metadc676883

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  • October 1, 1996

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  • July 25, 2015, 2:21 a.m.

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  • Aug. 4, 2016, 7:04 p.m.

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La Haye, R.J.; Chu, M.S. & Callen, J.D. Practical beta limit in ITER-shaped discharges in DIII-D and its increase by higher collisionality, article, October 1, 1996; San Diego, California. (digital.library.unt.edu/ark:/67531/metadc676883/: accessed June 23, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.