Title :
A broad band X-ray imaging spectrophotometer for astrophysical studies
Author :
Lum, Kenneth S K ; Lee, Dong Hwan ; Ku, W.H.
Author_Institution :
Columbia Astrophys. Lab., Columbia Univ., New York, NY, USA
Abstract :
A broad band X-ray imaging spectrophotometer (BBXRIS) has been built for astrophysical studies. The BBXRIS is based on a large-imaging gas scintillation proportional counter (LIGSPC), a combination of a gas scintillation proportional counter and a multiwire proportional counter, which achieves 8% (FWHM) energy resolution and 1.5-mm (FWHM) spatial resolution at 5.9 keV. The LIGSPC can be integrated with a grazing incidence mirror and a coded aperture mask to provide imaging over a broad range of X-ray energies. The results of tests involving the LIGSPC and a code aperture mask are presented, and possible applications of the BBXRIS are discussed.<>
Keywords :
X-ray apparatus; X-ray astronomy; astronomical instruments; proportional counters; scintillation counters; spectrophotometers; 5.9 keV; BBXRIS; astrophysical studies; broad band X-ray imaging spectrophotometer; coded aperture mask; energy resolution; grazing incidence mirror; large-imaging gas scintillation proportional counter; multiwire proportional counter; spatial resolution; Apertures; Astrophysics; Energy resolution; Laboratories; Mirrors; Optical imaging; Radiation detectors; Spatial resolution; X-ray detectors; X-ray imaging;
Journal_Title :
Nuclear Science, IEEE Transactions on
