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Proceedings Paper

Spectroscopic CZT detectors development for x- and gamma-ray imaging instruments
Author(s): Egidio M. Quadrini; Michela Uslenghi; Monica Alderighi; Fabio Casini; Sergio D' Angelo; Mauro Fiorini; Nicola La Palombara; Marcello Mancini; Serena Monti; Angela Bazzano; Sergio Di Cosimo; Massimo Frutti; Lorenzo Natalucci; Pietro Ubertini; Giuseppe M. Guadalupi; Matteo Sassi; Barbara Negri
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Paper Abstract

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.

Paper Details

Date Published: 13 September 2007
PDF: 12 pages
Proc. SPIE 6686, UV, X-Ray, and Gamma-Ray Space Instrumentation for Astronomy XV, 66860R (13 September 2007); doi: 10.1117/12.734340
Show Author Affiliations
Egidio M. Quadrini, INAF-IASF Milano (Italy)
Michela Uslenghi, INAF-IASF Milano (Italy)
Monica Alderighi, INAF-IASF Milano (Italy)
Fabio Casini, INAF-IASF Milano (Italy)
Sergio D' Angelo, INAF-IASF Milano (Italy)
Mauro Fiorini, INAF-IASF Milano (Italy)
Nicola La Palombara, INAF-IASF Milano (Italy)
Marcello Mancini, INAF-IASF-Milano (Italy)
Serena Monti, INAF-IASF Milano (Italy)
Angela Bazzano, INAF-IASF Roma (Italy)
Sergio Di Cosimo, INAF-IASF Roma (Italy)
Massimo Frutti, INAF-IASF Roma (Italy)
Lorenzo Natalucci, INAF-IASF Roma (Italy)
Pietro Ubertini, INAF-IASF Roma (Italy)
Giuseppe M. Guadalupi, Venezia Tecnologie (Italy)
Matteo Sassi, Uni-Milano (Italy)
Barbara Negri, ASI (Italy)

Published in SPIE Proceedings Vol. 6686:
UV, X-Ray, and Gamma-Ray Space Instrumentation for Astronomy XV
Oswald H.W. Siegmund, Editor(s)

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