DIII-D Advanced Tokamak Research Overview

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Description

This paper reviews recent progress in the development of long-pulse, high performance discharges on the DIII-D tokamak. It is highlighted by a discharge achieving simultaneously {beta}{sub N}H of 9, bootstrap current fraction of 0.5, noninductive current fraction of 0.75, and sustained for 16 energy confinement times. The physics challenge has changed in the long-pulse regime. Non-ideal MHD modes are limiting the stability, fast ion driven modes may play a role in fast ion transport which limits the stored energy and plasma edge behavior can affect the global performance. New control tools are being developed to address these issues.

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Creation Information

Chan, V.S.; Greenfield, C.M.; Lao, L.L.; Luce, T.C.; Petty, C.C. & Staebler, G.M. December 1, 1999.

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  • General Atomic Company
    Publisher Info: General Atomics, San Diego, CA (United States)
    Place of Publication: San Diego, California

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Description

This paper reviews recent progress in the development of long-pulse, high performance discharges on the DIII-D tokamak. It is highlighted by a discharge achieving simultaneously {beta}{sub N}H of 9, bootstrap current fraction of 0.5, noninductive current fraction of 0.75, and sustained for 16 energy confinement times. The physics challenge has changed in the long-pulse regime. Non-ideal MHD modes are limiting the stability, fast ion driven modes may play a role in fast ion transport which limits the stored energy and plasma edge behavior can affect the global performance. New control tools are being developed to address these issues.

Physical Description

Medium: P; Size: vp.

Notes

INIS; OSTI as DE00766827

Source

  • 2nd IAEA Technical Committee Meeting on Steady State Operation of Magnetic Fusion Devices, Fukuoka (JP), 10/25/1999--10/29/1999

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  • Report No.: GA-A23312
  • Grant Number: AC03-99ER54463
  • Grant Number: W-7405-ENG-48
  • Grant Number: AC05-96OR22464
  • Grant Number: AC04-94AL85000
  • Grant Number: AC02-76CH03073
  • Grant Number: FG03-86ER53225
  • Grant Number: FG03-95ER54294
  • Office of Scientific & Technical Information Report Number: 766827
  • Archival Resource Key: ark:/67531/metadc718385

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Creation Date

  • December 1, 1999

Added to The UNT Digital Library

  • Sept. 29, 2015, 5:31 a.m.

Description Last Updated

  • April 18, 2016, 5:59 p.m.

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Chan, V.S.; Greenfield, C.M.; Lao, L.L.; Luce, T.C.; Petty, C.C. & Staebler, G.M. DIII-D Advanced Tokamak Research Overview, article, December 1, 1999; San Diego, California. (digital.library.unt.edu/ark:/67531/metadc718385/: accessed August 18, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.