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Proceedings Paper

Development of a 3D CZT detector prototype for Laue Lens telescope
Author(s): Ezio Caroli; Natalia Auricchio; Stefano Del Sordo; Leonardo Abbene; Carl Budtz-Jørgensen; Fabio Casini; Rui M. Curado da Silva; Irfan Kuvvetlli; Luciano Milano; Lorenzo Natalucci; Egidio M. Quadrini; John B. Stephen; Pietro Ubertini; Massimiliano Zanichelli; Andrea Zappettini
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Paper Abstract

We report on the development of a 3D position sensitive prototype suitable as focal plane detector for Laue lens telescope. The basic sensitive unit is a drift strip detector based on a CZT crystal, (~19×8 mm2 area, 2.4 mm thick), irradiated transversally to the electric field direction. The anode side is segmented in 64 strips, that divide the crystal in 8 independent sensor (pixel), each composed by one collecting strip and 7 (one in common) adjacent drift strips. The drift strips are biased by a voltage divider, whereas the anode strips are held at ground. Furthermore, the cathode is divided in 4 horizontal strips for the reconstruction of the third interaction position coordinate. The 3D prototype will be made by packing 8 linear modules, each composed by one basic sensitive unit, bonded on a ceramic layer. The linear modules readout is provided by a custom front end electronics implementing a set of three RENA-3 for a total of 128 channels. The front-end electronics and the operating logics (in particular coincidence logics for polarisation measurements) are handled by a versatile and modular multi-parametric back end electronics developed using FPGA technology.

Paper Details

Date Published: 19 July 2010
PDF: 9 pages
Proc. SPIE 7742, High Energy, Optical, and Infrared Detectors for Astronomy IV, 77420V (19 July 2010); doi: 10.1117/12.858120
Show Author Affiliations
Ezio Caroli, INAF - IASF Bologna (Italy)
Natalia Auricchio, INAF - IASF Bologna (Italy)
Stefano Del Sordo, INAF - IASF Palermo (Italy)
Leonardo Abbene, INAF - IASF Palermo (Italy)
Carl Budtz-Jørgensen, National Space Institute/DTU Space (Denmark)
Fabio Casini, INAF - IASF Milano (Italy)
Sanitas EG srl (Italy)
Rui M. Curado da Silva, Univ. de Coimbra (Portugal)
Irfan Kuvvetlli, National Space Institute/DTU Space (Denmark)
Luciano Milano, Univ. degli Studi di Napoli Federico II (Italy)
Lorenzo Natalucci, INAF - IASF Roma (Italy)
Egidio M. Quadrini, INAF - IASF Milano (Italy)
John B. Stephen, INAF - IASF Bologna (Italy)
Pietro Ubertini, INAF - IASF Roma (Italy)
Massimiliano Zanichelli, IMEM-CNR (Italy)
Andrea Zappettini, IMEM-CNR (Italy)

Published in SPIE Proceedings Vol. 7742:
High Energy, Optical, and Infrared Detectors for Astronomy IV
Andrew D. Holland; David A. Dorn, Editor(s)

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