The spacelab 2 XRT xenon-filled position-sensitive proportional counters

Details The spacelab 2 XRT xenon-filled position-sensitive proportional counters The spacelab 2 XRT xenon-filled position-sensitive proportional counters

Dec 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988nimpa.273..682s&link_type=abstract

Nuclear Instruments and Methods in Physics Research Section A, Volume 273, Issue 2-3, p. 682-688.

Physics

2

Scientific paper

The dual coded-mask X-ray telescope flown on the Spacelab 2 mission utilised two position-sensitive proportional counters, the largest yet used in space for X-ray astronomy. Each had a geometric area of over 1000 cm2 and a depth of 5.3 cm atmospheres of xenon-methane, providing useful sensitivity up to 30 keV. A novel position readout technique used a combination of delay line timing and measuring ratios of cathode signal amplitudes. Analysis of flight data indicates the performance was close to that obtained during ground calibration tests. The possibilities for developments for higher energies and larger areas are discussed.

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