The Development of a Position-Sensitive CZT Detector with Orthogonal Co-Planar Anode Strips
J.M. Ryan, K. Larson, J.M. Macri, M.L. McConnell
L. Hamel, O. Tousignant, A. Vincent
We report on the simulation, construction and performance of prototype CZT
imaging detectors employing orthogonal coplanar anode strips. These
detectors employ a novel electrode geometry with non-collecting anode
strips in one dimension and collecting anode pixels, interconnected in
rows, in the orthogonal direction. These detectors retain the
spectroscopic and detection efficiency advantages of single carrier
(electrons) charge sensing devices as well as the principal advantage of
conventional strip detectors with orthogonal anode and cathode strips, i.e.
an N x N array of imaging pixels are realized with only 2N electronic
channels. Charge signals induced on the various electrodes of a prototype
detector with 8 x 8 unit cells (1 x 1 x 5 mm3) are compared with the
simulations. Results of position and energy resolution measurements are
presented and discussed.
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On 16 Jul 1999, 09:19.