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Post calibration of the two-dimensional electron cyclotron emission imaging instrument with electron temperature characteristics of the magnetohydrodynamic instabilities SCIE SCOPUS
- Title
- Post calibration of the two-dimensional electron cyclotron emission imaging instrument with electron temperature characteristics of the magnetohydrodynamic instabilities
- Date Issued
- 2016-01
- Publisher
- AIP Publishing
- Abstract
- The electron cyclotron emission imaging (ECEI) instrument is widely used to study the local electron temperature (T-e) fluctuations by measuring the ECE intensity I-ECE proportional to T-e in tokamak plasmas. The ECEI measurement is often processed in a normalized fluctuation quantity against the time averaged value due to complication in absolute calibration. In this paper, the ECEI channels are relatively calibrated using the flat T-e assumption of the sawtooth crash or the tearing mode island and a proper extrapolation. The 2-D relatively calibrated electron temperature (T-e,T-rel) images are reconstructed and the displacement amplitude of the magnetohydrodynamic modes can be measured for the accurate quantitative growth analysis. (C) 2016 AIP Publishing LLC.
- ISSN
- 0034-6748
- Article Type
- Article
- Citation
- REVIEW OF SCIENTIFIC INSTRUMENTS, vol. 87, no. 1, page. 13506, 2016-01
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