Analog processing of signals from a CZT strip detector with orthogonal coplanar anodes

Kipp Larson; Valentin T. Jordanov; Mark L. McConnell; John R. Macri; James M. Ryan; Allen Drake; Louis-Andre Hamel; Olivier Tousignant

doi:10.1117/12.407596

21 November 2000 Analog processing of signals from a CZT strip detector with orthogonal coplanar anodes

Kipp Larson, Valentin T. Jordanov, Mark L. McConnell, John R. Macri, James M. Ryan, Allen Drake, Louis-Andre Hamel, Olivier Tousignant

Author Affiliations +

Proceedings Volume 4141, Hard X-Ray, Gamma-Ray, and Neutron Detector Physics II; (2000) https://doi.org/10.1117/12.407596
Event: International Symposium on Optical Science and Technology, 2000, San Diego, CA, United States

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.

Citation Download Citation

Kipp Larson, Valentin T. Jordanov, Mark L. McConnell, John R. Macri, James M. Ryan, Allen Drake, Louis-Andre Hamel, and Olivier Tousignant "Analog processing of signals from a CZT strip detector with orthogonal coplanar anodes", Proc. SPIE 4141, Hard X-Ray, Gamma-Ray, and Neutron Detector Physics II, (21 November 2000); https://doi.org/10.1117/12.407596

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