Title :
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
fDate :
2/1/2002 12:00:00 AM
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;
Journal_Title :
Plasma Science, IEEE Transactions on
DOI :
10.1109/TPS.2002.1003935
