Hokkaido University Collection of Scholarly and Academic Papers >
Graduate School of Engineering / Faculty of Engineering >
Peer-reviewed Journal Articles, etc >
Reconstruction of plasma shape and eddy current profile based on modified cauchy condition surface method in merging spherical tokamak
This item is licensed under:Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
Title: | Reconstruction of plasma shape and eddy current profile based on modified cauchy condition surface method in merging spherical tokamak |
Authors: | Ushiki, Tomohiko Browse this author | Inomoto, Michiaki Browse this author | Itagaki, Masafumi Browse this author →KAKEN DB |
Keywords: | Spherical tokamak | Merging start-up | Modified CCS method | Plasma shape reconstruction | Eddy current |
Issue Date: | Nov-2017 |
Publisher: | Elsevier |
Journal Title: | Fusion engineering and design |
Volume: | 122 |
Start Page: | 35 |
End Page: | 41 |
Publisher DOI: | 10.1016/j.fusengdes.2017.09.012 |
Abstract: | The spherical tokamak merging start-up is one of the central solenoid-free start-up method. For controlling the merging actively, it is essential to identify the plasma shapes during the merging process. In the present work, the modified Cauchy condition surface method is applied to demonstrate the reconstruction of the plasma boundary shapes as well as the eddy current profiles at three different representative phases in the merging start-up process (a. initial phase, b. merging phase, c. after merging). Profiles of magnetic flux and plasma boundary have been reconstructed accurately using noiseless magnetic sensor signals and reconstructed with a fairly good accuracy using sensor signals with 3% noise. The eddy current profile have been also reconstructed with a fairly accuracy. |
Rights: | © 2017, Elsevier. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/ | http://creativecommons.org/licenses/by-nc-nd/4.0/ |
Type: | article (author version) |
URI: | http://hdl.handle.net/2115/75988 |
Appears in Collections: | 工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
|
Submitter: 板垣 正文
|