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ASCOT modelling of ...
ASCOT modelling of ripple effects on toroidal torque
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Salmi, A. (författare)
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- Johnson, Thomas J. (författare)
- KTH,Fusionsplasmafysik
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Parai, V. (författare)
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Heikkinen, J. (författare)
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Hynonen, V. (författare)
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Kiviniemi, T. P. (författare)
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Kurki-Suonio, T. (författare)
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(creator_code:org_t)
- Wiley, 2008
- 2008
- Engelska.
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Ingår i: Contributions to Plasma Physics. - : Wiley. - 0863-1042 .- 1521-3986. ; 48:1-3, s. 77-81
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Toroidal field ripple, delta=(B-max-B-min)/(B-max+B-min) in ITER will be relatively large, about 0.5% at the outer midplane. Due to the importance of toroidal rotation on plasma stability and confinement it is important to understand the consequences of a non-negligible ripple field on rotation. Guiding centre following Monte Carlo code ASCOT is used to evaluate the torque on plasma from co-current NBI in presence of toroidal magnetic field ripple. Simulations are made for a JET discharge from 2007 Ripple Campaign aimed to clarify the effect of ripple on fusion plasmas in preparation for ITER. ASCOT results show large reduction of torque from co-NBI and negative torque from thermal ions, which together could create a counter rotating edge plasma.
Nyckelord
- MC
- GC orbit following
- ripple
- torque
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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