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arXiv · 0709.3481

Energy resolution improvement in room-temperature CZT detectors

Y. Ramachers·D. Y. Stewart
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Abstract

We present methods to improve the energy resolution of single-channel, room-temperature Cadmium-Zinc-Telluride (CZT) detectors. A new preamplifier design enables the acquisition of the actual transient current from the crystals and straightforward data analysis methods yield unprecedented energy resolution for our test-detectors. These consist of an eV-CAPture Plus crystal as standard and 1 cm cube Frisch collar crystals created in-house from low-grade coplanar grid detectors. Energy resolutions of 1.9% for our collar detectors and 0.8% for the eV crystal at 662 keV were obtained. The latter compares favourably to the best existing energy resolution results from pixel detectors.

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Y. Ramachers, D. Y. Stewart. 2007-09-21. Energy resolution improvement in room-temperature CZT detectors. https://doi.org/10.1088/1748-0221/2/12/p12003

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