Development of a Pixelated Silicon Detector for a Large-Area X-ray Timing Mission

Details Development of a Pixelated Silicon Detector for a Large-Area X-ray Timing Mission Development of a Pixelated Silicon Detector for a Large-Area X-ray Timing Mission

Sep 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006head....9.1832r&link_type=abstract

American Astronomical Society, HEAD meeting #9, #18.32; Bulletin of the American Astronomical Society, Vol. 38, p.386

Computer Science

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Scientific paper

The RXTE mission has been a resounding success over the last decade, showing that large-area X-ray timing is a powerful tool for probing matter in the most extreme environments of gravity, temperature, and magnetic field by studying phenomena in the kHz frequency range. A follow-on mission with an order of magnitude more effective area would make great progress in several areas where RXTE has just given us tantalizing glimpses. Solid-state silicon detectors have many promising characteristics compared to the traditional gas proportional counters, including much reduced weight and volume per unit area. We describe laboratory prototypes of pixelated silicon detectors and associated readout electronics that will enable such a large-area timing mission. Our 0.5-mm thick detectors cover the energy range 2--20 keV with high efficiency, sub-microsecond timing, minimal deadtime, and good spectral resolution. The power consumption is such that a detector with ten times the effective area of RXTE would require an instrument power under 1 kW.
This work has been funded by DARPA and ONR.

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