Maximal bootstrap current tokamak equilibria in the first stability regime

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A series of tokamak equilibria are studied in order to identify characteristics which may maximize the proportion of toroidal current naturally provided by the bootstrap effect. These plasmas are typical of high field reactors considered by the ARIES (Advanced Reactor Innovation and Evaluation Study) collaboration and are assumed to have rather flat density profiles and broad pressure profiles. With the use of noninductive current drive to provide the seed current it is possible to operate with q/sub axis/ approx. = 2.0; this results in a (bootstrap-assissted) current drive power of P/sup B//sub CD/ - 117 MW and a figure of ... continued below

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Pages: 31

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Ehst, D.A. & Evans, K. Jr. January 1, 1989.

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Description

A series of tokamak equilibria are studied in order to identify characteristics which may maximize the proportion of toroidal current naturally provided by the bootstrap effect. These plasmas are typical of high field reactors considered by the ARIES (Advanced Reactor Innovation and Evaluation Study) collaboration and are assumed to have rather flat density profiles and broad pressure profiles. With the use of noninductive current drive to provide the seed current it is possible to operate with q/sub axis/ approx. = 2.0; this results in a (bootstrap-assissted) current drive power of P/sup B//sub CD/ - 117 MW and a figure of merit /sub gamma//sup B/ = 1.12 for reference reactor with /bar T//sub e/ approx. = 21 keV. For the reference reactor P/sub f/ = 2880 MW so Q = 24. Without the bootstrap effect the absorbed current drive power would be P/sub CD/ = 285 MW, so T /equivalent to/ 1 /minus/ (/sub gamma///sub gamma//sup B)/ = 0.59. 10 refs., 9 figs., 2 tabs.

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Pages: 31

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NTIS, PC A03/MF A01 - OSTI; 1.

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  • Other Information: Portions of this document are illegible in microfiche products

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  • Other: DE89008201
  • Report No.: ANL/FPP/TM-235
  • Grant Number: W-31109-ENG-38
  • DOI: 10.2172/6391532 | External Link
  • Office of Scientific & Technical Information Report Number: 6391532
  • Archival Resource Key: ark:/67531/metadc1212631

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  • January 1, 1989

Added to The UNT Digital Library

  • July 5, 2018, 11:11 p.m.

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  • Oct. 31, 2018, 5:36 p.m.

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Ehst, D.A. & Evans, K. Jr. Maximal bootstrap current tokamak equilibria in the first stability regime, report, January 1, 1989; Illinois. (digital.library.unt.edu/ark:/67531/metadc1212631/: accessed December 11, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.