Space‐resolving flat‐field vacuum ultraviolet spectrograph for plasma diagnostics
作者:
Naohiro Yamaguchi,
Jungo Katoh,
Yukiko Sato,
Tatsuya Aota,
Atsusi Mase,
Teruo Tamano,
期刊:
Review of Scientific Instruments
(AIP Available online 1994)
卷期:
Volume 65,
issue 11
页码: 3408-3414
ISSN:0034-6748
年代: 1994
DOI:10.1063/1.1144514
出版商: AIP
数据来源: AIP
摘要:
A spatial imaging vacuum ultraviolet (VUV) spectrograph has been constructed for simultaneous observation of spatial and spectral distributions of plasma radiation in the wavelength range 150–1050 A˚. The spectrograph consists of an entrance slit of limited height which provides spatial resolution, an aberration‐corrected concave grating with varied spacing grooves which gives a flat‐field spectral output plane, and an image‐intensified two‐dimensional detector system. The basic characteristics of the spectrograph have been investigated by ray‐tracing calculations. The expected performance has been confirmed through experiments using a dc glow discharge source on the reciprocal dispersion, the spatial resolution, or the incident angle dependence of spectral images. VUV spectra with spatial and time resolution have been obtained successfully in the GAMMA10 tandem mirror experiment.
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