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Characterization of Redlen CZT detectors for hard x-ray astronomy

Pike, Sean N. and Harrison, Fiona A. and Burnham, Jill A. and Cook, Walter and Grefenstette, Brian W. and Madsen, Kristin K. and Miyasaka, Hiromasa and Sanders, Julian M. and Sosanya, Andrew A. (2018) Characterization of Redlen CZT detectors for hard x-ray astronomy. In: Hard X-Ray, Gamma-Ray, and Neutron Detector Physics XX. Proceedings of SPIE. No.10762. Society of Photo-optical Instrumentation Engineers (SPIE) , Bellingham, WA, Art. No. 1076214. ISBN 9781510620957.

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We present the results of ongoing characterization of Cadmium Zinc Telluride (CZT) semiconductors produced by Redlen Technologies. In particular we hope to determine their viability for future X-ray astronomy missions such as the High Energy X-ray Probe (HEX-P). The fully fabricated hybrid detectors consist of CZT crystals with a collecting area of 2 cm × 2 cm and thickness of 3 mm mounted on a custom pixelated ASIC originally designed for the Nuclear Spectroscopic Telescope Array (NuSTAR) mission, which launched in 2012. We present the results of inter-pixel conductance and leakage current tests as well as spectral characterization using an 241Am source. Although further calibration and testing is necessary to determine the capabilities of these detectors, preliminary results indicate that Redlen CZT will be able to achieve spectral resolution and noise levels comparable to those of the CZT detectors currently in use aboard NuSTAR.

Item Type:Book Section
Related URLs:
URLURL TypeDescription
Pike, Sean N.0000-0002-8403-0041
Harrison, Fiona A.0000-0003-2992-8024
Grefenstette, Brian W.0000-0002-1984-2932
Madsen, Kristin K.0000-0003-1252-4891
Miyasaka, Hiromasa0000-0002-8074-4186
Additional Information:© 2018 Society of Photo-Optical Instrumentation Engineers (SPIE). This work was supported under NASA grant NNX13AC55G.
Group:Space Radiation Laboratory, NuSTAR, Astronomy Department
Funding AgencyGrant Number
Subject Keywords:CZT, Redlen Technologies, X-ray detectors, NuSTAR, astronomy
Series Name:Proceedings of SPIE
Issue or Number:10762
Record Number:CaltechAUTHORS:20190104-094928664
Persistent URL:
Official Citation:Sean N. Pike, Fiona A. Harrison, Jill A. Burnham, Walter Cook, Brian W. Grefenstette, Kristin K. Madsen, Hiromasa Miyasaka, Julian M. Sanders, Andrew A. Sosanya, "Characterization of Redlen CZT detectors for hard x-ray astronomy," Proc. SPIE 10762, Hard X-Ray, Gamma-Ray, and Neutron Detector Physics XX, 1076214 (13 September 2018); doi: 10.1117/12.2321990
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:92093
Deposited By: George Porter
Deposited On:07 Jan 2019 15:41
Last Modified:16 Nov 2021 03:46

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