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Results of investigation of quantum count mode gallium arsenide pixel detectors are demonstrated. It was shown that at room temperature energy resolution of GaAs detector similar to silicon ones. But detection quantum efficiency (DQE) of 30 keV gamma-quanta of GaAs detector exceeds DQE of Si detector more then order of magnitude.
Compton imaging is of interest in the fields of astrophysics, homeland security and nuclear medicine as it can provide high spatial resolution and detection efficiency even at high γ-ray energies. In this work, carried out under the auspices of a project of the Italian Space Agency, aimed to explore novel technologies for Compton architectures with high-efficiency and low background for the detection...
The paper reports a Silicon Drift Detectors (SDD) with on-chip front-end electronics. These detectors will be used for high resolution X-rays spectroscopy applications, either at room temperature or at cryogenic conditions, and can efficiently operate at very high rates of the impinging radiation (105 cps/cm2). Silicon Drift Detectors, proposed for the first time in 1983, are fully depleted detectors...
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