Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992esasp.356...33b&link_type=abstract
In ESA, Proceedings of an ESA Symposium on Photon Detectors for Space Instrumentation p 33-38 (SEE N94-15025 03-19)
Astronomy and Astrophysics
Astronomy
Microstrip Devices, Proportional Counters, X Ray Astronomy, X Ray Spectroscopy, Imaging Techniques, Spaceborne Astronomy, Spacecraft Instruments
Scientific paper
An investigation of the LEPC (Low Energy Proportional Counter) is presented. A set of four imaging Microstrip Proportional Counters (MSPC) are to be provided as part of XSPECT, a contribution to the SODART telescopes. A High EPC (HEPC) and an LEPC will be provided for each of the SODART telescopes. The design is fixed and a prototype of LEPC is under construction. The properties of this detector are described. The detector has an excellent energy resolution of delta(E)(sub FWHM) = 0.33 (E/1 keV)(exp 1/2) keV. The inherent position resolution is less than 0.2 mm around 6 keV, and positional nonlinearities are less than 0.1 mm. The measured point spread function shows the capability for studying weak objects in the vicinity of strong ones. The gas gain is independent of position to better than 0.5 percent. The efficiency of charged particle rejection was measured.
Bahnsen Axel
Budtz-Jorgensen Carl
Mohlmadsen M.
Schnopper Herbert W.
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