Radiography
- The radiation used in radiography testing is a higher energy (shorter wavelength) version of the electromagnetic waves that we see as visible light
- The radiation can come from an X-ray generator or a radioactive source
- The part is placed between the radiation source and a piece of film. The part will stop some of the radiation. Thicker and more dense area will stop more of the radiation.
- The film darkness (density) will vary with the amount of radiation reaching the film through the test object
