HIGH-RESOLUTION VISIBLE SPECTROMETER FOR DIVERTOR STUDY IN JT-60U

Authors
KUBO H SUGIE T TAKENAGA H HIGASHIJIMA S SAKASAI A
Citation
H. Kubo et al., HIGH-RESOLUTION VISIBLE SPECTROMETER FOR DIVERTOR STUDY IN JT-60U, Fusion engineering and design, 34-5, 1997, pp. 277-280
Citations number
8
Categorie Soggetti
Nuclear Sciences & Tecnology
Journal title
Fusion engineering and design → ACNP
ISSN journal
09203796
Volume
34-5
Year of publication
1997
Pages
277 - 280
Database
ISI
SICI code
0920-3796(1997)34-5:<277:HVSFDS>2.0.ZU;2-L
Abstract
In JT-60U, a visible spectroscopic system with high wavelength resolut ion has been developed to observe Doppler broadening of spectral lines emitted from divertor plasmas. An echelle grating is used to obtain t he high wavelength resolution and the nominal wavelength resolution is 5.3 pm. Using optical fibre arrays, the Littrow mounting and a charge -coupled device camera, it is possible to observe 10 sight lines simul taneously with a spatial resolution of 1.2 cm. (C) 1997 Elsevier Scien ce B.V.