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Proceedings Paper

Three-dimensional imaging and detection efficiency performance of orthogonal coplanar CZT strip detectors
Author(s): Mark L. McConnell; John R. Macri; James M. Ryan; Kipp Larson; Louis-Andre Hamel; G. Bernard; C. Pomerleau; Olivier Tousignant; Jean-Charles Leroux; Valentin T. Jordanov
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Paper Abstract

We report on recent three-dimensional imaging performance and detection efficiency measurements obtained with 5 mm thick prototype CdZnTe detectors fabricated with orthogonal coplanar anode strips. In previous work, we have shown that detectors fabricated using this design achieve both very good energy resolution and sub-millimeter spatial resolution with fewer electronic channels than are required for pixel detectors. As electron-only devices, like pixel detectors, coplanar anode strip detectors can be fabricated in the thickness required to be effective imagers for photons with energies in excess of 500 keV. Unlike conventional double-sided strip detectors, the coplanar anode strip detectors require segmented contacts and signal processing electronics on only one surface. The signals can be processed to measure the total energy deposit and the photon interaction location in three dimensions. The measurements reported here provide a quantitative assessment of the detection capabilities of orthogonal coplanar anode strip detectors.

Paper Details

Date Published: 21 November 2000
PDF: 11 pages
Proc. SPIE 4141, Hard X-Ray, Gamma-Ray, and Neutron Detector Physics II, (21 November 2000); doi: 10.1117/12.407576
Show Author Affiliations
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)
Kipp Larson, Univ. of New Hampshire (United States)
Louis-Andre Hamel, Univ. of Montreal (Canada)
G. Bernard, Univ. of Montreal (Canada)
C. Pomerleau, Univ. of Montreal (Canada)
Olivier Tousignant, Univ. of Montreal (Canada)
Jean-Charles Leroux, Univ. of Montreal (Canada)
Valentin T. Jordanov, Yantra (United States)

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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