Introduction: In nuclear medicine, the use of a pixelated semiconductor detector such as CZT is an of growing interest for introducing new devices. Especially, the spatial resolution can be improved by using a pixelated parallel-hole collimator with equal holes and pixel sizes based on the pixelated detector. The purpose of this study was to compare the effect of pixelated and ...

Beam Test Results for Singleand Double-Sided Silicon Detector Prototypes of the CMS Central Detector O. Adriani5), E. Babucci8), N. Bacchetta7), G. Bagliesi9), P. Bartalini8), A. Basti9), G. M. Bilei8), D. Boemi4), L. Borrello4), F. Bosi9), R. Castaldi9), G. Castellini6), E. Catacchini5), U. Cazzola9), B. Checcucci8), C. Civinini5), D. Creanza3), R. D’Alessandro5), M. de Palma3), R. Dell’Orso9)...

An uncooled mid-wave infrared (MWIR) detector is developed by doping an n-type 4H-SiC with Ga using a laser doping technique. 4H-SiC is one of the polytypes of crystalline silicon carbide and a wide bandgap semiconductor. The dopant creates an energy level of 0.30  eV, which was confirmed by optical spectroscopy of the doped sample. This energy level corresponds to the MWIR wavelength of 4.21  ...

This paper concerns PN signal detection in multipath interference by using a passive correlation receiver with an OS CFAR processor. Noise level estimation is performed in both windows, using the ordered statistics (OS) approach. The minimum of the average decision threshold is used as an OS estimation criterion of effectiveness [1] The CFAR processor parameters are obtained by Monte Carlo simu...

This paper proposes a multiple-model (MM) hypothesis testing approach for detection of unknown target maneuvers that may have several possible prior distributions. An MM maneuver detector based on sequential hypothesis testing is developed. Simulation results that compare the performance of the proposed MM detector to that of traditional maneuver detectors are presented. They demonstrate that t...

NIST X-RAY DETECTOR HEADS FOR COMMERCIALIZATION NIST has granted co-exclusive licenses to two private companies for commercialization of a revolutionary microcalorimeter-based x-ray detector with an energy resolution of 2 eV, some 50 times better than conventional semiconductor-based detectors. The new technology will be used in instruments for the characterization and analysis of materials by ...