ECIA - TEP 189
Electron Tube Radioactivity Calculations in Microcuries/Tube
|Publication Date:||1 January 1974|
Radioactive isotopes are, on occasion, intentionally added by manufacturers of electron tubes to improve tube performance. For this reason, manufacturs may be required t o determine the total radioactivity in microcuries per tube (µc/tube) to comply with existing Federal regulations.
It is usually impractical to measure the radioactivity with any
degree of precision, The radionuclide is often surrounded by
electrodes, spacers, and an envelope such that the geometry
Therefore, the radioactivity for electron tubes shall be determined by a calculation technique in terms of the known radionuclides which have been intentionally added to the electron tube to either increase tube life or to improve the overall tube perforniance.