Abstract We describe the fabrication and flight performance of a balloon-borne large area hard X-ray (20–100 keV) telescope for spectral studies of discrete cosmic X-ray sources. The telescope consists of two multi-wire Xenon filled proportional counters of effective area 1200 cm2 each, mounted on an orientable platform. It can be pre-programmed to track any celestial source with a pointing accuracy of 0.5 degrees. For one hour of observation the telescope has a 5 σ detection sensitivity of 10−5 ph cm−2 s−1. The laboratory test results and the performance in a series of balloon flights conducted in 1984–1986 period is discussed and the preliminary results obtained for some X-ray sources are presented.


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    Title :

    Fabrication and flight performance of a large area balloon borne hard X-ray telescope


    Contributors:
    Rao, A.R. (author) / Agrawal, P.C. (author) / Manchanda, R.K. (author) / Shah, M.R. (author)

    Published in:

    Publication date :

    1987-01-01


    Size :

    3 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English



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