6533b871fe1ef96bd12d2534

RESEARCH PRODUCT

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

Irfan KuvvetlliNatalia AuricchioJohn B. StephenE. M. QuadriniF. CasiniL. MilanoStefano Del SordoM. ZanichelliAndrea ZappettiniRui M. Curado Da SilvaPietro UbertiniLorenzo NatalucciLeonardo AbbeneCarl Budtz-jørgensenEzio Caroli

subject

CDTE DETECTORSPhysicsPhysics::Instrumentation and Detectorsbusiness.industryDetectorVoltage dividerGamma ray spectroscopySTRIPSCZT detectorCZT detectors 3D detectors Laue lensCathodeParticle detectorlaw.inventionAnodeLens (optics)TelescopeOpticsHard X- and soft gamma-ray astronomy3D imagingDrift striplawCDZNTEbusiness

description

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, (similar to 19x8 mm(2) 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.

yearjournalcountryeditionlanguage
2010-07-16
10.1117/12.858120http://hdl.handle.net/10447/50614