Brookhaven Science Associates, Lcc

Endicott Interconnect Technologies, Inc.

Ii-vi Incorporated

Joseph Grosholz, Jr

Paul O'Connor

Gianluigi DeGeronimo

Robert Kerth Davis

Gianluigi Degeronimo

Viatcheslav Vydrin

Kevin B Parnham

A radiation detection and counting system () includes a radiation detector element () for outputting a signal related to an energy of a radiation event received thereby and an amplifier () for amplifying the signal output by the detector element (). A gain equalization circuit () adjusts the gain of the amplified output signal and a plurality of comparators () compare the gain adjusted amplified output signal to a like plurality of different valued threshold signals that are independently adjustable of each other A plurality of counters () is operative whereupon only the counter associated with the one comparator () that changes state in response to the peak of the gain adjusted amplified output signal exceeding the value of the trigger threshold signal thereof is incremented. A storage () stores the incremented value of each counter () accumulated over a sample time interval and data output logic circuit () transfers the stored accumulated counts out of the storage.

Multi-window signal processing electronics architecture for photon counting with multi-element sensors

A method for processing pulses arriving randomly in time on at least one channel using multiple peak detectors includes asynchronously selecting a non-busy peak detector (PD) in response to a pulse-generated trigger signal, connecting the channel to the selected PD in response to the trigger signal, and detecting a pulse peak amplitude. Amplitude and time of arrival data are output in first-in first-out (FIFO) sequence. An apparatus includes trigger comparators to generate the trigger signal for the pulse-receiving channel, PDs, a switch for connecting the channel to the selected PD, and logic circuitry which maintains the write pointer. Also included, time-to-amplitude converters (TACs) convert time of arrival to analog voltage and an analog multiplexer provides FIFO output. A multi-element sensor system for spectroscopy includes detector elements, channels, trigger comparators, PDs, a switch, and a logic circuit with asynchronous write pointer. The system includes TACs, a multiplexer and analog-to-digital converter.

Method and apparatus for signal processing in a sensor system for use in spectroscopy

A gamma ray camera A includes a crystal array S which includes a plurality of pixelseach of which outputs a pixel signal in response to receiving a gamma ray. A first circuit (and) outputs for each pixelof the crystal array S, when a pixel signal output by the pixelhas a predetermined relation to a reference signal, a threshold signal related to the position of the pixelin the crystal array S. A second circuit (and) outputs a counter value for each pixel signal having a predetermined relation to its threshold signal. Lastly, a third circuitaccumulates for each pixelof the crystal array S a count of the counter values output by the second circuit (and) for the pixel

High-speed pulse discriminating gamma ray camera

Growing community of inventors

Natrona Heights, PA, United States of America

Joseph Grosholz, Jr