Title :
Preliminary test results of pixel detectors developed for the All-sky X-ray and Gamma-ray Astronomy Monitor (AXGAM)
Author :
Souchkov, V.V. ; Gordon, E.E. ; Hamilton, W.J. ; Hurley, K. ; Maeding, D.G. ; Mohanty, G. ; Ogelman, H. ; Paulos, R.J. ; Puetter, R.C. ; Tumer, T.O. ; Zweerink, J.
Author_Institution :
California Univ., Riverside, CA, USA
Abstract :
New, high spatial resolution CdZnTe (CZT) and silicon (Si) pixel detectors are developed for high angular and high energy resolution X-ray astronomy. These detectors are proposed for use in wide field-of-view, imaging All-sky X-ray, and Gamma-ray Astronomy Monitor (AXGAM) in a possible future space mission. The high stopping power of CZT detectors combined with low-noise front-end readout electronics ASIC (application specific integrated circuit) makes possible an order of magnitude improvement in spatial (angular) and energy resolution in X-ray detection. The AXGAM instrument will be built in the form of a fine coded mask placed over two-dimensional, high spatial resolution and low energy threshold silicon and CZT pixel detector arrays. The preliminary test results obtained from our first silicon and CZT pixel detectors are presented. These detectors may also be used with or without modification for medical and industrial imaging
Keywords :
X-ray astronomy; analogue processing circuits; application specific integrated circuits; gamma-ray astronomy; nuclear electronics; position sensitive particle detectors; readout electronics; semiconductor counters; silicon radiation detectors; ASIC; AXGAM; CdZnTe; CdZnTe pixel detector; Si; Si pixel detector; X-ray detection; coded mask; energy resolution; front-end readout electronics; pixel detectors; spatial resolution; stopping power; Application specific integrated circuits; Astronomy; Energy resolution; High-resolution imaging; Silicon; Spatial resolution; Testing; X-ray detection; X-ray detectors; X-ray imaging;
Conference_Titel :
Nuclear Science Symposium, 1999. Conference Record. 1999 IEEE
Conference_Location :
Seattle, WA
Print_ISBN :
0-7803-5696-9
DOI :
10.1109/NSSMIC.1999.845748
