AbstractThe Space Astrophysics Group is currently fabricating a novel EUV spectrometer for the ORFEUS-SPAS mission. It uses a set of four varied line-space spherical diffraction gratings to obtain high resolution ( λ Δλ ≳ 7000) spectra of point sources at wavelengths between 390 and 1200 Å. The spectra are recorded with two detector units, each containing curved surface microchannel plates and a delay-line anode readout system. An independent optical system detects the image of the source in the entrance aperture and tracks the source as it drifts during an observation, enabling a reconstruction of the spectra postflight. The overall system performance is discussed and illustrated by synthetic spectra.


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    Title :

    The Berkeley EUV spectrometer for ORFEUS


    Contributors:
    Hurwitz, M. (author) / Bowyer, S. (author)

    Published in:

    Advances in Space Research ; 11 , 11 ; 217-220


    Publication date :

    1991-01-01


    Size :

    4 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English



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