Electron Density Measurement of a Tokamak Plasma by an HCN-Laser Interferometer

1976 ◽  
Vol 15 (9) ◽  
pp. 1753-1760
Author(s):  
Akimitsu Nishizawa ◽  
Masaru Masuzaki ◽  
Akihiro Mohri
Keyword(s):  
Electron Density ◽  
Laser Interferometer ◽  
Density Measurement ◽  
Tokamak Plasma ◽  
Hcn Laser

Multichannel HCN laser interferometer for electron density measurements of the JIPP T‐IIU tokamak

1989 ◽  
Vol 60 (12) ◽  
pp. 3734-3738 ◽  
Author(s):  
Kazuo Kawahata ◽  
Kiichiro Haba ◽  
Junji Fujita ◽  
Shigeki Okajima
Keyword(s):  
Electron Density ◽  
Laser Interferometer ◽  
Density Measurements ◽  
Hcn Laser

Use of He(I) 447.1-nm Line with Forbidden Component for Electron Density Determination in Plasmas

1997 ◽  
Vol 51 (3) ◽  
pp. 396-400 ◽  
Author(s):  
Z. Mijatović ◽  
R. Kobilarov ◽  
S. Djurović ◽  
M. Stevanov
Keyword(s):  
Electron Density ◽  
Plasma Density ◽  
Laser Interferometer ◽  
Density Measurement ◽  
Plasma Source ◽  
Density Determination ◽  
Pulsed Arc

Four parameters of the He(I) 447.1-nm line with a forbidden component were measured. A pulsed arc was used as a plasma source. Electron density in the range (1.9–5.9) 1021 m−3 was measured with a CO2 laser interferometer. On the basis of the comparisons of the obtained results with several theories and empirical formulae for plasma density determination, it is shown that this line could be used for simple but precise electron density measurement, with an error < 10%.

CO2 laser interferometer for electron density measurement in JT‐60U tokamak

1992 ◽  
Vol 63 (10) ◽  
pp. 4971-4973 ◽  
Author(s):  
Yasunori Kawano ◽  
Akira Nagashima ◽  
Shinichi Ishida ◽  
Takeshi Fukuda ◽  
Tohru Matoba
Keyword(s):  
Electron Density ◽  
Co2 Laser ◽  
Laser Interferometer ◽  
Density Measurement
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