Development of a 3D CZT detector prototype for Laue Lens telescope

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

doi:10.1117/12.858120

19 July 2010 Development of a 3D CZT detector prototype for Laue Lens telescope

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

Author Affiliations +

Proceedings Volume 7742, High Energy, Optical, and Infrared Detectors for Astronomy IV; 77420V (2010) https://doi.org/10.1117/12.858120
Event: SPIE Astronomical Telescopes + Instrumentation, 2010, San Diego, California, United States

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.

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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, and Andrea Zappettini "Development of a 3D CZT detector prototype for Laue Lens telescope", Proc. SPIE 7742, High Energy, Optical, and Infrared Detectors for Astronomy IV, 77420V (19 July 2010); https://doi.org/10.1117/12.858120

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