An integrated CMOS time-to-digital converter for coincidence detection in a liquid xenon PET prototype

摘要

A Time to Digital Converter was designed (CMOS 0.35 mu m) to perform coincidence detection in a Liquid Xenon PET prototype. This circuit proved to be able to operate at 150 K, while showing a resolution better than 250 ps. The circuit enables a low readout dead time (< 90 ns) and provides a fully synchronous digital interface for easy data retrieval. (c) 2006 Elsevier B.V. All rights reserved.