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Proceedings Paper

Analog processing of signals from a CZT strip detector with orthogonal coplanar anodes
Author(s): Kipp Larson; Valentin T. Jordanov; Mark L. McConnell; John R. Macri; James M. Ryan; Allen Drake; Louis-Andre Hamel; Olivier Tousignant
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Paper Abstract

We present the requirements, design, and performance of an analog circuit for processing the non-collecting anode strip signals from a cadmium zinc telluride (CZT) strip detector with orthogonal coplanar anodes. Detector signal simulations and measurements with a prototype are used to define the range of signal characteristics as a function of location of the gamma interaction in the detector. The signals from the non- collecting anode strip electrodes are used to define two of the three spatial coordinates including the depth of interaction, the z dimension. Analog signal processing options are discussed. A circuit to process the signals from the non- collecting anode strips and extract from them the depth of interaction is described. The circuit employs a time-over- threshold (TOT) measurement. The performance of the detector prototype with a preliminary version of this circuit is presented, and future development work is outlined.

Paper Details

Date Published: 21 November 2000
PDF: 6 pages
Proc. SPIE 4141, Hard X-Ray, Gamma-Ray, and Neutron Detector Physics II, (21 November 2000); doi: 10.1117/12.407596
Show Author Affiliations
Kipp Larson, Univ. of New Hampshire (United States)
Valentin T. Jordanov, Yantra (United States)
Mark L. McConnell, Univ. of New Hampshire (United States)
John R. Macri, Univ. of New Hampshire (United States)
James M. Ryan, Univ. of New Hampshire (United States)
Allen Drake, Univ. of New Hampshire (United States)
Louis-Andre Hamel, Univ. of Montreal (Canada)
Olivier Tousignant, Univ. of Montreal (Canada)


Published in SPIE Proceedings Vol. 4141:
Hard X-Ray, Gamma-Ray, and Neutron Detector Physics II
Ralph B. James; Richard C. Schirato, Editor(s)

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