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  Comparison of high-field-side and low-field-side launch ECCD in the W7-AS stellarator

Romé, M., Erckmann, V., Laqua, H. P., Maassberg, H., & Marushchenko, N. B. (2003). Comparison of high-field-side and low-field-side launch ECCD in the W7-AS stellarator. Plasma Physics and Controlled Fusion, 45, 783-792. doi:10.1088/0741-3335/45/5/318.

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 Creators:
Romé, M.1, Author              
Erckmann, V.2, Author              
Laqua, H. P.3, Author              
Maassberg, H.1, Author              
Marushchenko, N. B.1, Author              
Affiliations:
1Experimental Plasma Physics 3 (E3), Max Planck Institute for Plasma Physics, Max Planck Society, ou_1856291              
2W7-X: Physics (PH), Max Planck Institute for Plasma Physics, Max Planck Society, ou_1856305              
3External Organizations, ou_persistent22              

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 Abstract: The electron cyclotron current drive (ECCD) with extraordinary mode at the second cyclotron harmonic launched from the high-field-side (HFS) is investigated in W7-AS stellarator. Trapped particle effects and quasi-linear effects are taken into account in linear ray-tracing and quasi-linear bounce-averaged Fokker–Planck computations of the driven current. The results for both low-field-side (LFS) and HFS injection in W7-AS are compared with the experimental results. A slightly lower current drive efficiency is obtained, both theoretically and experimentally, in the case of HFS injection, confirming the LFS launch as the preferred mode of operation for ECCD

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Language(s): eng - English
 Dates: 2003
 Publication Status: Published in print
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 Table of Contents: -
 Rev. Type: Peer
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Title: Plasma Physics and Controlled Fusion
  Alternative Title : Plasma Phys. Control. Fusion
Source Genre: Journal
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Pages: - Volume / Issue: 45 Sequence Number: - Start / End Page: 783 - 792 Identifier: -