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

Journal Article · Tue Mar 24 00:00:00 EDT 2015 · Review of Scientific Instruments

DOI:https://doi.org/10.1063/1.4915316· OSTI ID:1287002

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)

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.

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

Sponsoring Organization:: USDOE

Grant/Contract Number:: AC05-00OR22725

OSTI ID:: 1287002

Journal Information:: Review of Scientific Instruments, Vol. 86, Issue 3; ISSN 0034-6748

Publisher:: American Institute of Physics (AIP)Copyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 3 works

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References (18)

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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

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