Measurement of the shape of magnetic flux surfaces in a high temperature plasma using a soft X-ray CCD imaging camera

Author

Liang, Yunfeng ; Ida, Katsumi ; Kado, Shinichiro ; Watanabe, Kiyomasa ; Sakakibara, Satoru ; Yamada, Hiroshi ; Okamura, Shoichi ; Matsuoka, Keisuke

Author_Institution

Nat. Inst. for Fusion Sci., Gifu, Japan

Volume

30

Issue

1

fYear

2002

fDate

2/1/2002 12:00:00 AM

Firstpage

84

Lastpage

85

Abstract

Tangential soft X-ray images (1-10 keV) are measured with a charge coupled device camera in the large helical device (LHD). The shape of the magnetic flux surface is obtained by choosing the magnetic flux surface from databases, which is consistent with the measured two-dimensional profile. The images are also used to analyze the equilibrium in the LHD, in particular the Shafranov shift of the plasma with an accuracy of less than 10 mm

Keywords

CCD image sensors; X-ray applications; X-ray imaging; magnetic flux; photographic applications; plasma diagnostics; plasma temperature; stellarators; 1 to 10 keV; LHD; Large Helical Device; Shafranov shift; charge coupled device camera; databases; high temperature plasma; magnetic axis; magnetic flux surface shape measurement; plasma equilibrium; soft X-ray CCD imaging camera; tangential soft X-ray images; two-dimensional profile; Charge measurement; Charge-coupled image sensors; Current measurement; Image analysis; Image databases; Magnetic analysis; Magnetic flux; Plasma measurements; Shape measurement; X-ray imaging;

fLanguage

English

Journal_Title

Plasma Science, IEEE Transactions on

Publisher

ieee

ISSN

0093-3813

Type

jour

DOI

10.1109/TPS.2002.1003935

Filename

1003935