Imaging Gas Counters for X- and Gamma Ray Astronomy

Details Imaging Gas Counters for X- and Gamma Ray Astronomy Imaging Gas Counters for X- and Gamma Ray Astronomy

Dec 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995exa.....6..119r&link_type=abstract

Experimental Astronomy, Volume 6, Issue 4, pp.119-127

Astronomy and Astrophysics

Astronomy

X-Rays, Imaging, Gas-Filled Detectors, Proportional Counters

Scientific paper

Gas-filled detectors, such as proportional counters, have long been used in x-ray astronomy. They are robust, relatively easy to fabricate, and can provide large collecting areas with reasonable spatial and energy resolution. Despite coming of age in the 50's and 60's, their versatility is such that they are still planned for future missions. A vigorous development program, led mostly by the high energy physics community, has ensured continued improvements in proportional counter technology. These include multistep counters, microstrip technologies and optical avalanche chambers. High fill-gas pressures and the use of suitable converters permit operation up to 100s of GeV. The current status of imaging gas-filled detectors will be reviewed, concentrating on the lower energy region (<100 keV) but also briefly covering higher energy applications up to the GeV region. This review is not intended to be exhaustive and draws heavily on work currently in progress at MSFC.

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