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Proceedings Paper

Measurements of Si hybrid CMOS x-ray detector characteristics
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Paper Abstract

The development of Hybrid CMOS Detectors (HCDs) for X-Ray telescope focal planes will place them in contention with CCDs on future satellite missions due to their faster frame rates, flexible readout scenarios, lower power consumption, and inherent radiation hardness. CCDs have been used with great success on the current generation of X-Ray telescopes (e.g. Chandra, XMM, Suzaku, and Swift). However their bucket-brigade readout architecture, which transfers charge across the chip with discrete component readout electronics, results in clockrate limited readout speeds that cause pileup (saturation) of bright sources and an inherent susceptibility to radiation induced displacement damage that limits mission lifetime. In contrast, HCDs read pixels with low power, on-chip multiplexer electronics in a random access fashion. Faster frame rates achieved with multi-output readout design will allow the next generation's larger effective area telescopes to observe bright sources free of pileup. Radiation damaged lattice sites effect a single pixel instead of an entire row. Random access, multi-output readout will allow for novel readout modes such as simultaneous bright-source-fast/whole-chip-slow readout. In order for HCDs to be useful as X-Ray detectors, they must show noise and energy resolution performance similar to CCDs while retaining advantages inherent to HCDs. We will report on readnoise, conversion gain, and energy resolution measurements of an X-Ray enhanced Teledyne HAWAII-1RG (H1RG) HCD and describe techniques of H1RG data reduction.

Paper Details

Date Published: 21 August 2009
PDF: 12 pages
Proc. SPIE 7435, UV, X-Ray, and Gamma-Ray Space Instrumentation for Astronomy XVI, 74350E (21 August 2009); doi: 10.1117/12.826515
Show Author Affiliations
Stephen D. Bongiorno, The Pennsylvania State Univ. (United States)
Abe D. Falcone, The Pennsylvania State Univ. (United States)
David N. Burrows, The Pennsylvania State Univ. (United States)
Robert Cook, The Pennsylvania State Univ. (United States)
Yibin Bai, Teledyne Imaging Sensors (United States)
Mark Farris, Teledyne Imaging Sensors (United States)


Published in SPIE Proceedings Vol. 7435:
UV, X-Ray, and Gamma-Ray Space Instrumentation for Astronomy XVI
Oswald H. Siegmund, Editor(s)

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