X-Ray Monitor For All Sky (Xmas) Mission

A new high resolution and ultra wide field of view imaging high energy x-ray and low energy gamma ray detector is proposed for a future space mission. XMAS is expected to combine are minute angular resolution with 2 or 3 pi field-of-view for continuous monitoring of all sky. It will also have wide energy range from about 10 keV to over 250 keV with excellent energy resolution on the order of a few %. XMAS will be built in the form of a fine coded aperture in a geodesic dome format over a two-dimensional high resolution CdZnTe pixel detector array. It will be designed to have accurate timing information. The major scientific aim of this mission is to observe and monitor continuously gamma-ray bursts, AGNs, transient phenomenon and isolated pulsars with high position, time and energy resolutions.