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High speed preamplifier circuit, detection electronics, and radiation detection systems therefrom

United States Patent

7,800,439
September 21, 2010
View the Complete Patent at the US Patent & Trademark Office
Oak Ridge National Laboratory - Visit the Partnerships Directorate Website
A preamplifier circuit for processing a signal provided by a radiation detector includes a transimpedance amplifier coupled to receive a current signal from a detector and generate a voltage signal at its output. A second amplification stage has an input coupled to an output of the transimpedance amplifier for providing an amplified voltage signal. Detector electronics include a preamplifier circuit having a first and second transimpedance amplifier coupled to receive a current signal from a first and second location on a detector, respectively, and generate a first and second voltage signal at respective outputs. A second amplification stage has an input coupled to an output of the transimpedance amplifiers for amplifying the first and said second voltage signals to provide first and second amplified voltage signals. A differential output stage is coupled to the second amplification stage for receiving the first and second amplified voltage signals and providing a pair of outputs from each of the first and second amplified voltage signals. Read out circuitry has an input coupled to receive both of the pair of outputs, the read out circuitry having structure for processing each of the pair of outputs, and providing a single digital output having a time-stamp therefrom.
Riedel; Richard A. (Knoxville, TN), Wintenberg; Alan L. (Knoxville, TN), Clonts; Lloyd G. (Knoxville, TN), Cooper; Ronald G. (Oakridge, TN)
Ut-Battelle, LLC (Oak Ridge, TN)
11/ 588,996
20090224835
October 27, 2006
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT The United States Government has rights in this invention pursuant to contract no. DEAC05-00OR22725 between the United States Department of Energy and UT-Battelle, LLC.