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The MM-PAD-2.1: A Wide-Dynamic-Range Detector for High-Energy X-Ray Imaging

Cornell Affiliated Author(s)

Author

K.S. Shanks
H.T. Philipp
D. Gadkari
J.T. Weizeorick
J. Baldwin
M.W. Tate
A. Miceli
Sol Gruner

Abstract

We have fabricated 128×128 pixel readout ASICs for the MM-PAD-2.1, a wide-dynamic-range photon-integrating detector intended for high-energy x-ray imaging (>20 keV). Design specifications include a signal-to-noise ratio of 10 for measurement of a single 20-keV photon, a maximum measureable signal of 108 20-keV photons/pixel/frame, and the ability to accurately measure sustained photon rates of ≥ 109 20-keV photons/pixel/s. The pixel pitch is 150 µm, resulting in an active area of 19.2 mm × 19.2 mm per single-chip module. ASICs have been bonded to both Si and CdTe sensors. Detector control firmware has been designed that allows for selective readout of a 128×128 pixel area at 9 kHz, or readout of the full array at 1.5 kHz. First results from characterization of the full-scale chip are reported. © 2020 IEEE

Date Published

Conference Name

Conference

URL

https://www.scopus.com/inward/record.uri?eid=2-s2.0-85124701568&doi=10.1109%2fNSS%2fMIC42677.2020.9507923&partnerID=40&md5=99eea9b208019ab3691ccee1114b3051

DOI

10.1109/NSS/MIC42677.2020.9507923

Group (Lab)

Sol M. Gruner Group

Funding Source

DE-SC0016035
DE-SC0017631

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