Radiographic methods: part 2. radiation sources

摘要

The purpose of this series is to explain radiographic methods of non-destructive testing in simple language; as few technical terms as possible are used. The series began last month by introducing the method and describing film radiography inoutline. This month we look at radiation sources and the development of a technique for the production of high- quality radiographs. In future issues there will be sections on flaw sensitivity and the reliability of radiographic methods, and finallyfuture developments in this important field will be discussed.