The capabilities of a gas scintillation camera for cosmic X-ray astronomy

Astronomy and Astrophysics – Astronomy

Scientific paper

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Cosmic Rays, High Temperature Gases, Scintillation Counters, X Ray Sources, Collimators, Energy Spectra, Grazing Incidence, Plasma Spectra, Proportional Counters

Scientific paper

The capabilities of a gas scintillator camera for use in X-ray astronomy are investigated. Detailed experimental results are presented on both the position and energy resolution over the energy range 0.28 to 6 keV. The energy resolution varies from 38% to 9.5% for 0.28 keV C-K and 6 keV X-rays, respectively. Position resolutions of 1.8 mm and 3.5 mm for 6 keV and 1.5 keV Al-K X-rays were obtained. Image quality and uniformity over the camera aperture are also discussed, while further techniques leading to improvements in position resolution are outlined. Finally, applications of these cameras in conjunction with grazing incidence and coded mask X-ray optics are discussed.

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