Plasma current start-up by the outer ohmic heating coils in the Saskatchewan TORus Modified (STOR-M) iron core tokamak

Mitarai, O.; Xiao, C.; McColl, D.; Dreval, M.; Hirose, A.; Peng, M.

doi:10.1063/1.4915316

Title: Plasma current start-up by the outer ohmic heating coils in the Saskatchewan TORus Modified (STOR-M) iron core tokamak

Abstract

A plasma current up to 15 kA has been driven with outer ohmic heating (OH) coils in the STOR-M iron core tokamak. Even when the inner OH coil is disconnected, the outer OH coils alone can induce the plasma current as primary windings and initial breakdown are even easier in this coil layout. Our results suggest a possibility to use an iron core in a spherical tokamak to start up the plasma current without a central solenoid. Finally, the effect of the iron core saturation on the extension of the discharge pulse length has been estimated for further experiments in the STOR-M tokamak.

Authors:

Mitarai, O. ^[1]; Xiao, C. ^[2]; McColl, D. ^[2];

^[2]; Hirose, A. ^[2]; Peng, M. ^[3]

Tokai Univ., Kumamoto (Japan)
Univ. of Saskatchewan, Saskatoon, SK (Canada)
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

Publication Date:: Tue Mar 24 00:00:00 EDT 2015

Research Org.:: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1287002

Grant/Contract Number:: AC05-00OR22725

Resource Type:: Accepted Manuscript

Journal Name:: Review of Scientific Instruments

Additional Journal Information:: Journal Volume: 86; Journal Issue: 3; Journal ID: ISSN 0034-6748

Publisher:: American Institute of Physics (AIP)

Country of Publication:: United States

Language:: English

Subject:: 70 PLASMA PHYSICS AND FUSION TECHNOLOGY

Citation Formats


                    Mitarai, O., Xiao, C., McColl, D., Dreval, M., Hirose, A., and Peng, M. Plasma current start-up by the outer ohmic heating coils in the Saskatchewan TORus Modified (STOR-M) iron core tokamak.  United States: N. p., 2015. 
Web.  doi:10.1063/1.4915316.

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                    Mitarai, O., Xiao, C., McColl, D., Dreval, M., Hirose, A., & Peng, M. Plasma current start-up by the outer ohmic heating coils in the Saskatchewan TORus Modified (STOR-M) iron core tokamak.  United States.  https://doi.org/10.1063/1.4915316

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                    Mitarai, O., Xiao, C., McColl, D., Dreval, M., Hirose, A., and Peng, M. Tue .  
"Plasma current start-up by the outer ohmic heating coils in the Saskatchewan TORus Modified (STOR-M) iron core tokamak".  United States.  https://doi.org/10.1063/1.4915316.  https://www.osti.gov/servlets/purl/1287002.

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@article{osti_1287002,

  title        = {Plasma current start-up by the outer ohmic heating coils in the Saskatchewan TORus Modified (STOR-M) iron core tokamak},

  author       = {Mitarai, O. and Xiao, C. and McColl, D. and Dreval, M. and Hirose, A. and Peng, M.},

  abstractNote = {A plasma current up to 15 kA has been driven with outer ohmic heating (OH) coils in the STOR-M iron core tokamak. Even when the inner OH coil is disconnected, the outer OH coils alone can induce the plasma current as primary windings and initial breakdown are even easier in this coil layout. Our results suggest a possibility to use an iron core in a spherical tokamak to start up the plasma current without a central solenoid. Finally, the effect of the iron core saturation on the extension of the discharge pulse length has been estimated for further experiments in the STOR-M tokamak.},

  doi          = {10.1063/1.4915316},

  journal      = {Review of Scientific Instruments},

  number       = 3,

  volume       = 86,

  place        = {United States},

  year         = {Tue Mar 24 00:00:00 EDT 2015},

  month        = {Tue Mar 24 00:00:00 EDT 2015}

}

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Works referenced in this record:

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journal, April 1992

Sykes, A.; Bosco, E. Del; Colchin, R. J.
Nuclear Fusion, Vol. 32, Issue 4
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Current drive operation in a tokamak
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Mitarai, O.; Hirose, A.
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Model circuit analysis for current drive operations in a tokamak
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Title: Plasma current start-up by the outer ohmic heating coils in the Saskatchewan TORus Modified (STOR-M) iron core tokamak

Abstract

Citation Formats

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