Development of next-generation event-driven x-ray hybrid CMOS detectors

2026/08/05 by Timothy R. Emeigh, Abraham D. Falcone, Joseph M. Colosimo +14
Physics and Astronomy · #astro-ph.IM #physics.ins-det

paper · pdf · doi:10.1117/12.3102648

8 pages, 8 figures, submitted to Proceedings of SPIE Astronomical Telescopes + Instrumentation 2026

arxiv created 2026/08/05 · arxiv updated 2026/08/07

Abstract

The Penn State University High Energy Astrophysics Detector and Instrumentation Lab, in collaboration with Teledyne Imaging Sensors, has developed a next-generation event-driven X-ray hybrid CMOS detector. This detector is an HCD with a 1,024x1,024 array of 21-micron pitch pixels, featuring a comparator in each pixel to enable event-driven readout. While the full frame operation of this detector can reach readout speeds of up to 150 Hz, this event-driven operation allows readout of only those pixels that surpass a user-set charge threshold, enabling effective rates of up to 10 kHz. Here we report on the past detector development efforts at Penn State and describe these new detectors and expected performance improvements.

Citations

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