CdTe focal plane detector for hard x-ray focusing optics

Paul Seller; Matthew D. Wilson; Matthew C. Veale; Andreas Schneider; Jessica Gaskin; Colleen Wilson-Hodge; Steven Christe; Albert Y. Shih; Kyle Gregory; Andrew Inglis; Marco Panessa

doi:10.1117/12.2191617

24 August 2015 CdTe focal plane detector for hard x-ray focusing optics

Paul Seller, Matthew D. Wilson, Matthew C. Veale, Andreas Schneider, Jessica Gaskin, Colleen Wilson-Hodge, Steven Christe, Albert Y. Shih, Kyle Gregory, Andrew Inglis, Marco Panessa

Author Affiliations +

Proceedings Volume 9601, UV, X-Ray, and Gamma-Ray Space Instrumentation for Astronomy XIX; 960103 (2015) https://doi.org/10.1117/12.2191617
Event: SPIE Optical Engineering + Applications, 2015, San Diego, California, United States

Abstract

The demand for higher resolution x-ray optics (a few arcseconds or better) in the areas of astrophysics and solar science has, in turn, driven the development of complementary detectors. These detectors should have fine pixels, necessary to appropriately oversample the optics at a given focal length, and an energy response also matched to that of the optics. Rutherford Appleton Laboratory have developed a 3-side buttable, 20 mm x 20 mm CdTe-based detector with 250 μm square pixels (80x80 pixels) which achieves 1 keV FWHM @ 60 keV and gives full spectroscopy between 5 keV and 200 keV. An added advantage of these detectors is that they have a full-frame readout rate of 10 kHz. Working with NASA Goddard Space Flight Center and Marshall Space Flight Center, 4 of these 1mm-thick CdTe detectors are tiled into a 2x2 array for use at the focal plane of a balloon-borne hard-x-ray telescope, and a similar configuration could be suitable for astrophysics and solar space-based missions. This effort encompasses the fabrication and testing of flightsuitable front-end electronics and calibration of the assembled detector arrays. We explain the operation of the pixelated ASIC readout and measurements, front-end electronics development, preliminary X-ray imaging and spectral performance, and plans for full calibration of the detector assemblies. Work done in conjunction with the NASA Centers is funded through the NASA Science Mission Directorate Astrophysics Research and Analysis Program.

Citation Download Citation

Paul Seller, Matthew D. Wilson, Matthew C. Veale, Andreas Schneider, Jessica Gaskin, Colleen Wilson-Hodge, Steven Christe, Albert Y. Shih, Kyle Gregory, Andrew Inglis, and Marco Panessa "CdTe focal plane detector for hard x-ray focusing optics", Proc. SPIE 9601, UV, X-Ray, and Gamma-Ray Space Instrumentation for Astronomy XIX, 960103 (24 August 2015); https://doi.org/10.1117/12.2191617

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available