Imaging Proportional X-ray Counter for HEAO

Details Imaging Proportional X-ray Counter for HEAO Imaging Proportional X-ray Counter for HEAO

Feb 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978itns...25..445h&link_type=abstract

(IEEE, ERDA, and NASA, Nuclear Science Symposium, 4th, and Nuclear Power Systems Symposium, 9th, San Francisco, Calif., Oct. 19-

Astronomy and Astrophysics

Astronomy

2

Heao, Proportional Counters, Satellite-Borne Instruments, Spaceborne Telescopes, X Ray Telescopes, Automatic Test Equipment, Calibrating, Computer Techniques, Ground Tests, Signal Processing, Switching Circuits, Windows (Apertures), X Ray Imagery

Scientific paper

The HEAO-B Imaging Proportional Counter (IPC) is an X-ray imaging instrument designed for use in the High Energy Astronomy Observatory - Mission B (HEAO-B) X-ray Telescope. It measures the spatial location of individual X-ray photons by the risetime method and energy of photons by pulse height analysis. The IPC can locate photons in the energy range 0.2 to 4 keV to within 1 mm and provides 5 bits of energy level information. Each measured X-ray event is also time tagged with 7 bits of temporal data. The IPC also includes an in-flight-calibration source and uses a gas control system that maintains the counter gas density constant to an accuracy of 0.25 percent.

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