13 September 2007 Spectroscopic CZT detectors development for x- and gamma-ray imaging instruments
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In the context of R&D studies financed by the Italian Space Agency (ASI), a feasibility study to evaluate the Italian Industry interest in medium-large scale production of enhanced CZT detectors has been performed by an Italian Consortium. The R&D investment aims at providing in-house source of high quality solid state spectrometers for Space Astrophysics applications. As a possible spin-off industrial applications to Gamma-ray devices for non-destructive inspections in medical, commercial and security fields have been considered by ASI. The short term programme mainly consists of developing proprietary procedures for 2-3" CZT crystals growth, including bonding and contact philosophy, and a newly designed low-power electronics readout chain. The prototype design and breadboarding is based on a fast signal AD conversion with the target in order to perform a new run for an already existing low-power (<0.7 mW/pixel) ASIC. The prototype also provides digital photon energy reconstruction with particular care for multiple events and polarimetry evaluations. Scientific requirement evaluations for Space Astrophysics Satellite applications have been carried out in parallel, targeted to contribute to the ESA Cosmic Vision 2015-2025 Announcement of Opportunity. Detailed accommodation studies are undergoing, as part of this programme, to size a "Large area arcsecond angular resolution Imager" for the Gamma Ray Imager satellite (Knödlseder et al., this conference).and a new Gamma-ray Wide Field Camera for the "EDGE" proposal (Piro et al., this conference). Finally, an extended market study for cost analysis evaluation in view of the foreseen massive detector production has been performed.
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Egidio M. Quadrini, Egidio M. Quadrini, Michela Uslenghi, Michela Uslenghi, Monica Alderighi, Monica Alderighi, Fabio Casini, Fabio Casini, Sergio D' Angelo, Sergio D' Angelo, Mauro Fiorini, Mauro Fiorini, Nicola La Palombara, Nicola La Palombara, Marcello Mancini, Marcello Mancini, Serena Monti, Serena Monti, Angela Bazzano, Angela Bazzano, Sergio Di Cosimo, Sergio Di Cosimo, Massimo Frutti, Massimo Frutti, Lorenzo Natalucci, Lorenzo Natalucci, Pietro Ubertini, Pietro Ubertini, Giuseppe M. Guadalupi, Giuseppe M. Guadalupi, Matteo Sassi, Matteo Sassi, Barbara Negri, Barbara Negri, } "Spectroscopic CZT detectors development for x- and gamma-ray imaging instruments", Proc. SPIE 6686, UV, X-Ray, and Gamma-Ray Space Instrumentation for Astronomy XV, 66860R (13 September 2007); doi: 10.1117/12.734340; https://doi.org/10.1117/12.734340

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