The high-speed X-ray camera on AXIS: design and performance updates
Eric D. Miller, Catherine E. Grant, Robert Goeke, Marshall W. Bautz, Christopher Leitz, Kevan Donlon, Steven W. Allen, Sven Herrmann, Abraham D. Falcone, F. Elio Angile, Tanmoy Chattopadhyay, Michael Cooper, Mallory A. Jensen, Jill Juneau, Beverly LaMarr, Andrew Malonis

TL;DR
The paper details the design and performance enhancements of the AXIS high-speed X-ray camera, enabling high-resolution spectral imaging for astrophysics with improved throughput and speed.
Contribution
It introduces novel CCD and ASIC technologies for the AXIS camera, achieving faster, low-noise X-ray detection with high spectral performance.
Findings
Prototype CCDs completed fabrication and testing.
Performance tests show excellent spectral response at high readout rates.
The camera design meets mission requirements for high-speed X-ray imaging.
Abstract
AXIS, a Probe mission concept now in a Phase A study, will provide transformative studies of high-energy astrophysical phenomena thanks to its high-resolution X-ray spectral imaging. These capabilities are enabled by improvements to the mirror design that greatly increase the X-ray throughput per unit mass; and to the detector system, which operates more than an order of magnitude faster than heritage instruments while maintaining excellent spectral performance. We present updates to the design of the AXIS High-Speed Camera, a collaborative effort by MIT, Stanford University, the Pennsylvania State University, and the Southwest Research Institute. The camera employs large-format MIT Lincoln Laboratory CCDs that feature multiple high-speed, low-noise output amplifiers and an advanced single-layer polysilicon gate structure for fast, low-power clock transfers. A first lot of prototype…
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Taxonomy
TopicsMedical Imaging Techniques and Applications · Advanced X-ray Imaging Techniques · Advanced X-ray and CT Imaging
