This standard specifies the determination of the size of
gamma radiographic sources of 0,5 mm or greater,
made from the radionuclides Iridium 192,
Ytterbium 169, Selenium 75, or Cobalt 60, by a method
of radiography with X-rays. The source size of a
gamma radiography source is an important factor
which affects the image quality of gamma ray images.
The source size is determined with an accuracy
of ±10 % or 0,1 mm max.
This standard can be used for other radionuclides after
validation.
Warning. Exposure of any part of the human
body to X-rays or gamma-rays can be highly
injurious to health. Wherever X-ray equipment
or radioactive sources are in use, it is essential
to apply the appropriate legal requirements.
BS EN 12679:2000 history
2018BS EN 12679:2018 Non-destructive testing. Radiographic testing. Determination of the size of industrial radiographic gamma sources
2000BS EN 12679:2000 Non-destructive testing - Determination of the size of industrial radiographic sources - Radiographic method