Abstract
A new prototype Lixiscope (Low Intensity X-ray Imaging Scope) is described for operation in the 20–200 keV region. In addition to good spatial resolution, the new prototype is capable of providing simultaneous gamma-ray or X-ray single-photon counting, imaging, and energy resolution. The observed energy resolution determined from gamma-ray pulse-height spectra is only a factor of two poorer than that of a NAI(T1)-PMT (photomultipler tube) system. Taking into account the good spatial resolution, such a Lixiscope is thus equivalent to operating thousands of NaI(T1)-PMT systems in parallel with minimal degradation in overall energy resolution. These characteristics make the new prototype Lixiscope a compact and rugged device eminently suited for possible low-flux imaging applications.
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