Development of Backscattering Sensor for Gas Distribution Pipes. Final Report,November 1990-September 1992

摘要

A breadboard gamma backscattering sensor for measuring the wall thickness of gasdistribution pipes has been developed. The sensor was originally intended to be mounted on an internal inspection system separately developed for GRI. Two prototypes of the sensor, and a computer controlled miniaturized electronic board, were constructed and tested. The first prototype was a low resolution sensor intended to obtain information averaged over a relatively large area of the pipe surface. The second prototype allows more detailed scans, at a sacrifice in speed. Both sensors were intended to provide information on the wall thickness of gas distribution pipes 4 to 6 inches in diameter.