A large area (1 m2 medium energy (1-30 MeV) telescope for gamma ray astronomy is discussed. This telescope utilizes the double scattering of gamma rays between two scintillator arrays with directional discrimination by means of time-of-fligt. The first and second arrays consist of a series of plastic and NaI(Tl) scintillators, respectively, in the shape of long (1 m) linear elements viewed by photomultiplier tubes at both ends. The lateral position of the interaction in the plastic is determined by timing and in the NaI(Tl) by pulse height. Neutron-induced background is eliminated by using a pulse shape discrimination plastic scintillator. At 6 MeV, the telescope has an area-efficiency factor of 300 cm2, an energy resolution of 8 % (FWHM), an angular resolution of 3 deg (HWHM) and a sensitivity of 5.106 gamma's/cm2 secon for line emission. Discrete sources can be located to 0.5 deg.


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    Titel :

    Doublesscatter telescope for medium energy gamma ray astronomy from a satellite


    Weitere Titelangaben:

    Doppel-Streu-Teleskop fuer die Gammastrahlenastronomie im mittleren Energiebereich vom Satelliten aus


    Beteiligte:
    Zych, A.D. (Autor:in) / Wilson, R.B. (Autor:in) / Zaurosso, E. (Autor:in) / White, R.S. (Autor:in) / Dayton, B. (Autor:in) / Simone, J. (Autor:in)

    Erschienen in:

    IEEE Transactions on Nuclear Science ; NS-26 , 1Pt.1 ; 506-512


    Erscheinungsdatum :

    1979


    Format / Umfang :

    7 Seiten, 9 Bilder, 1 Tabelle, 28 Quellen



    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch




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