Spectroscopic comparison between 1200 grooves/mm ruled and holographic gratings of a flat-field spectrometer and its absolute sensitivity calibration using bremsstrahlung continuum

A flat-field extreme ultraviolet (EUV) spectrometer with a varied line spacing groove grating (1200 grooves/mm at grating center) has been developed to study the emission spectra from highly ionized medium Z impurities in large helical device (LHD). It covers a wavelength range of 50-500 A using a m...

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Bibliographic Details
Published in:Review of scientific instruments 2007-02, Vol.78 (2), p.023501
Main Authors: Chowdhuri, Malay Bikas, Morita, Shigeru, Goto, Motoshi, Nishimura, Hiroaki, Nagai, Keiji, Fujioka, Shinsuke
Format: Article
Language:English
Subjects:
BRANCHING RATIO
BREMSSTRAHLUNG
CALIBRATION
COMPARATIVE EVALUATIONS
EMISSION SPECTRA
EXTREME ULTRAVIOLET RADIATION
GRATINGS
HOLOGRAPHY
INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
LHD DEVICE
PLASMA
PLASMA IMPURITIES
RESOLUTION
SENSITIVITY
SPECTROMETERS
STELLARATORS
WAVELENGTHS
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