Recent advances in CZT strip detectors and coded mask imagers

¹ University of California San Diego, La Jolla, CA 92093-0424, U.S.A. e-mail: jmatteson@ucsd.eduThis research was supported by NASA Grants NAG5-5111, NAG5-5114, and NGT5-50170.
² Washington University, St. Louis, MO 63130-4899, U.S.A.
³ Nova R&D, Inc., Riverside, CA 92507 and University of California Riverside, Riverside, CA 92521, U.S.A.

Send offprint request to: J.L. Matteson

Received: 29 December 1998
Accepted: 18 May 1999

Abstract

The UCSD, WU, UCR and Nova collaboration has made significant progress on the necessary techniques for coded mask imaging of gamma-ray bursts: position sensitive CZT detectors with good energy resolution, ASIC readout, coded mask imaging, and background properties at balloon altitudes. Results on coded mask imaging techniques appropriate for wide field imaging and localization of gamma-ray bursts are presented, including a shadowgram and deconvolved image taken with a prototype detector/ASIC and MURA mask.