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Improved accuracy in the estimation of the tearing mode stability parameters (Delta ' and w(c)) using 2D ECEI data in KSTAR SCIE SCOPUS
- Title
- Improved accuracy in the estimation of the tearing mode stability parameters (Delta ' and w(c)) using 2D ECEI data in KSTAR
- Authors
- Choi, MJ; Yun, GS; Lee, W; Park, HK; Park, YS; Sabbagh, SA; Gibson, KJ; Bowman, C; Domier, CW; Luhmann, NC; Bak, JG; Lee, SG
- Date Issued
- 2014-08
- Publisher
- IOP Publishing
- Abstract
- The accuracy in estimation of two important tearing mode stability parameters (Delta' and w(c)) is improved by employing two-dimensional (2D) ECE imaging data which help one to overcome the resolution limit of conventional one-dimensional data. The experimentally measured 2D images are directly compared with synthetic ones from a tearing mode T-e model to estimate the parameters and an excellent agreement is achieved. The results imply that the observed tearing mode is classically stable but has non-negligible bootstrap current drive.
- ISSN
- 0029-5515
- Article Type
- Article
- Citation
- NUCLEAR FUSION, vol. 54, no. 8, page. 83010, 2014-08
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