1. CZT strip detectors for imaging and spectroscopy: collimated beam and ASIC readout experiments
- Author
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Peter K. Shu, J. Odom, Lyle M. Bartlett, A. M. Parsons, John Krizmanic, Bonnard J. Teegarden, C. Hanchak, P. Kurczynski, D. M. Palmer, N. Gehrels, F. Birsa, L. M. Barbier, J. Tueller, Scott Barthelmy, and Carl Michael Stahle
- Subjects
Physics ,Nuclear and High Energy Physics ,Physics::Instrumentation and Detectors ,business.industry ,Detector ,Astrophysics::Instrumentation and Methods for Astrophysics ,X-ray detector ,Particle detector ,Collimated light ,Cadmium zinc telluride ,Semiconductor detector ,chemistry.chemical_compound ,Optics ,Nuclear Energy and Engineering ,chemistry ,Optoelectronics ,Gamma spectroscopy ,Electrical and Electronic Engineering ,business ,Charge amplifier - Abstract
We report the status of ongoing investigations into cadmium zinc telluride (CZT) strip detectors for application in hard X-ray astronomy. We have instrumented a nine strip by nine strip region of a two sided strip detector made in our detector fabrication facility. In order to measure the position resolution of our detectors, we have implemented a collimated beam that concentrates radiation to a spot size less than 50 /spl mu/m. We have placed a 30 /spl mu/m upper limit on the width of the point spread function for this system. We have also performed charge collection studies as a function of incident photon energy and bias voltage with a single sided, 100 /spl mu/m pitch CZT strip detector wire bonded to an SVX ASIC charge amplifier. The detectors exhibited excellent strip uniformity in terms of photon count rate and spectroscopic information.
- Published
- 2002