Silicon x-ray array detector on spectrum-x-gamma satellite

The Silicon X-ray array, or 'SIXA' detector experiment will be carried by one of the 8-m focal length X-ray telescopes of the Spectrum-X-Gamma satellite. SIXA, which will measure X-ray spectra at good resolution simultaneously with the other X-ray telescope's gathering of images, uses 19 discrete, circular and closely packed Si(Li) detectors with an estimated resolution of 170-180 eV at 6 keV. The electronics of the SIXA instrument uses 19 parallel amplifier channels.