Journal article
Stellarator bootstrap current and plasma flow velocity at low collisionality
- Abstract:
- The bootstrap current and flow velocity of a low-collisionality stellarator plasma are calculated. As far as possible, the analysis is carried out in a uniform way across all low-collisionality regimes in general stellarator geometry, assuming only that the confinement is good enough that the plasma is approximately in local thermodynamic equilibrium. It is found that conventional expressions for the ion flow speed and bootstrap current in the low-collisionality limit are accurate only in the $1/\nu$-collisionality regime and need to be modified in the $\sqrt{\nu}$-regime. The correction due to finite collisionality is also discussed and is found to scale as $\nu^{2/5}$.
- Publication status:
- Published
- Peer review status:
- Peer reviewed
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- Files:
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(Preview, Accepted manuscript, pdf, 252.8KB, Terms of use)
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- Publisher copy:
- 10.1017/S0022377817000253
Authors
- Publisher:
- Cambridge University Press
- Journal:
- Journal of Plasma Physics More from this journal
- Volume:
- 83
- Issue:
- 2
- Pages:
- 1-25
- Publication date:
- 2017-03-27
- Acceptance date:
- 2017-03-07
- DOI:
- ISSN:
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0022-3778, 1469-7807
- Keywords:
- Pubs id:
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pubs:670975
- UUID:
-
uuid:0633c940-e99e-440a-ad62-317443990a9d
- Local pid:
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pubs:670975
- Source identifiers:
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670975
- Deposit date:
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2017-10-31
- ARK identifier:
Terms of use
- Copyright holder:
- © Cambridge University Press 2017
- Copyright date:
- 2017
- Notes:
- This is the author accepted manuscript following peer review version of the article. The final version is available online from Cambridge University Press at: 10.1017/S0022377817000253
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