1990年12月
COMPUTER-TOMOGRAPHY OF M=1 MODE DURING SAWTOOTH OSCILLATION WITH 3 SOFT-X-RAY DETECTOR ARRAYS ON THE WT-3 TOKAMAK
PLASMA PHYSICS AND CONTROLLED FUSION
- 巻
- 32
- 号
- 14
- 開始ページ
- 1289
- 終了ページ
- 1299
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1088/0741-3335/32/14/003
- 出版者・発行元
- IOP PUBLISHING LTD
Soft X-rays (SXRs) emitted from plasma in the WT-3 Tokamak were measured by three SXR detector arrays, viewing the plasma from three different angles. From these experimental data, we reconstructed the two dimensional (2-D) contour of constant SXR emissivity as a function of time, using the technique of computer tomography (CT). Computer simulation results show that data from three or more sets of detector arrays are required to reconstruct the 2-D emissivity structure with sufficient accuracy to distinguish Kadomtsev's model from the quasi-interchange (Wesson's) model of sawtooth crash. Further, it is shown that if the noise amplitude is more than 1.5%, reconstruction of the real 2-D SXR emissivity structure is difficult.
- リンク情報
- ID情報
-
- DOI : 10.1088/0741-3335/32/14/003
- ISSN : 0741-3335
- Web of Science ID : WOS:A1990ER57000003