General Lab Information

Technologies Available for License

2005-009: Integrated Circuit and Grid Design for High-Resolution Detection of Radiation Events

Invention: 2005-009

Patent Status: U.S. Patent Number 7,271,395 was issued on September 18, 2007

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Summary
TCP Technology
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Block diagram of the ASIC, including three front-end channels, two for amplification of the two grid signals (collecting and non-collecting) and one for amplification and processing of the cathode signal.

This invention offers an Application Specific Integrated Circuit (ASIC) for Cadmium Zinc Telluride Co-Planar grid (CPG) sensor. This ASIC is capable of amplifying and suitable processing signals from CPG sensors and therefore is attractive for building portable and battery-operated detection systems.

Description

Describes a method for measuring a depth of interaction of an ionizing event using a co-planar collecting electrode and a non-collecting electrode. The method comprises of obtaining a difference in time between a time of occurrence of an ionizing event as detected by one of the collecting electrode and the non-collecting electrode and a time of detection of a charge generated by the ionizing event at the collecting electrode and using this to calculate the depth of interaction of the ionizing event.

Benefits

The ASIC presented here provides a simultaneous low-noise amplification of grids, difference and cathode signals, adjustable relative gain and timing signals.

Applications and Industries

Due to the compactness and efficiency of the CPG sensors, they are being considered for various applications including: nuclear material safeguard, radioisotope identification in security and defense, environmental remediation, well logging, medical diagnostics and gamma-ray astronomy.

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