Astronomy and Astrophysics – Astronomy
Scientific paper
Jun 1977
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977cosp.meetq....i&link_type=abstract
COSPAR, Plenary Meeting, 20th, Tel Aviv, Israel, June 7-18, 1977, Paper. 8 p. Research supported by the Department of Space of I
Astronomy and Astrophysics
Astronomy
Cameras, Gamma Ray Astronomy, Radiation Detectors, X Ray Telescopes, Charge Coupled Devices, Imaging Techniques, Photomultiplier Tubes, Vidicons, X Ray Sources
Scientific paper
Concepts are discussed concerning the construction of a hard X-ray camera that uses inorganic scintillators such as CsI or NaI and is designed for locating gamma-ray bursts detected in the energy range from 20 to 100 keV. The proposed camera consists of a dome-shaped mask coded with a random pinhole pattern that casts a shadow on three two-dimensional imaging detectors with their viewing axes almost normal to each other. Two possibilities are described for localizing an X-ray event: one involves a thin scintillator and coherent fiber bundles for transporting photons to an image intensifier, while the other achieves localization directly with a pair of crossed one-dimensional cameras and a detector divided into optically isolated longitudinal strips. Image processing is accomplished by means of a vidicon or a CCD array in the first case and with the aid of two photomultipliers in the second.
Iyengar V. S.
Kasturirangan K.
Marar M. K. T.
Rao U. R.
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