Physics – Optics
Scientific paper
Jul 1979
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979sao..reptq.....&link_type=abstract
Final Report, 1 May 1976 - 30 Jun. 1977 Smithsonian Astrophysical Observatory, Cambridge, MA.
Physics
Optics
Imaging Techniques, Proportional Counters, Scintillation, X Ray Analysis, Fiber Optics, Image Intensifiers, Resolution, Ultraviolet Radiation, X Ray Imagery, Xenon
Scientific paper
A position sensitive proportional scintillation detector was developed and evaluated for use in applications involving X-ray imaging as well as spectroscopy. Topics covered include limitations of the proportional scintillation counter for use in space; purification of the xenon gas in the detector, and the operation of the detector system. Results show that the light signal in a proportional scintillation detector remains well localized. With modest electric fields in xenon, the primary electrons from a photoelectric absorption of an X-ray can be brought a distance of a few millimeters to a higher field region without spreading more than a millimeter or so. Therefore, it is possible to make a proportional scintillation detector with good position sensitivity that could be used to calibrate out the difference in light collection over its sensitive volume.
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