Preliminary test results of pixel detectors developed for the All-sky X-ray & Gamma-ray Astronomy Monitor (AXGAM)

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 f ront-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 re solution and low energy threshold silicon and CZT pixel detector arrays. Th e preliminary test results obtained from our first silicon and CZT pixel de tectors are presented. These detectors may also be used with or without mod ification for medical and industrial imaging.