Electron density profile measurements on LHD

Author

Kawahata, K. ; Tanaka, Kiyoshi ; Tokuzawa, T. ; Ito, Yu ; Akiyama, Toyokazu ; Sanin, A. ; Okajima ; Iio, S. ; Vyacheslavov, L.

Author_Institution

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

fYear

2003

fDate

5-5 June 2003

Firstpage

270

Abstract

Summary form only given, as follows. The Large Helical Device (LHD) experiments has successfully started after the eight-years of construction period. The plasma is generated by ECRH of 84 and 82.6 GHz, and heated up by NBI and ICRF. For the electron density measurements of the LHD plasma, four kinds of diagnostics have been used a multi-channel FIR laser interferometer, a two color mm wave interferometer, a CO/sub 2/ laser imaging interferometer and a 3-channel tangential CO/sub 2/ laser polarimeter.

Keywords

Tokamak devices; fusion reactor instrumentation; light interferometers; measurement by laser beam; plasma diagnostics; polarimeters; 1.2 MJ; 3-channel tangential CO/sub 2/ laser polarimeter; 82.6 GHz; 84 GHz; CO/sub 2/ laser imaging interferometer; LHD; Large Helical Device; electron density measurements; multi-channel FIR laser interferometer; two color mm wave interferometer; Density measurement; Electrons; Laser tuning; Optical interferometry; Plasma density; Plasma diagnostics; Plasma measurements; Plasma temperature; Pump lasers; Superconducting coils;

fLanguage

English

Publisher

ieee

Conference_Titel

Plasma Science, 2003. ICOPS 2003. IEEE Conference Record - Abstracts. The 30th International Conference on

Conference_Location

Jeju, South Korea

ISSN

0730-9244

Print_ISBN

0-7803-7911-X

Type

conf

DOI

10.1109/PLASMA.2003.1228808

Filename

1228808