Development of a flat-field XUV spectrograph for laser plasma interaction studies

A flat-field grating XUV spectrograph has been set up for laser plasma interaction studies. It uses a variable groove-spacing concave grating in grazing incidence geometry and operates in the wavelength range of 25–290 Å. A brief description of the design principle, construction and operation is giv...

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Bibliographic Details
Published in:Sadhana (Bangalore) 1999-12, Vol.24 (6), p.557-566
Main Authors: Chowdhury, A, Joshi, R A, Kumbhare, S R, Naik, P A, Gupta, P D
Format: Article
Language:English
Subjects:
CCD cameras
Grooves
Laser plasma interactions
Laser plasmas
Microchannel plates
Microchannels
Plasma interactions
Spectral resolution
Streak cameras
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Summary:A flat-field grating XUV spectrograph has been set up for laser plasma interaction studies. It uses a variable groove-spacing concave grating in grazing incidence geometry and operates in the wavelength range of 25–290 Å. A brief description of the design principle, construction and operation is given. Variation of spectral resolution with respect to the position of detector plane is studied. A resolution of 0.2 Å (at λ=35.0 Å) observed from the emission spectrum of carbon plasma is in agreement with that expected from design considerations. The instrument facilitates recording of multiple spectra on a single film and can be coupled to a microchannel plate-CCD camera detection system for on-line monitoring and processing of the spectrum, and to an X-ray streak camera for temporally resolved spectral measurements.
ISSN:0256-2499
0973-7677
DOI:10.1007/BF02745629