Save time with this exposure calculator for Iridium-192, Selinium-75 and Cobalt-60 sources.No more need to calculate the formula or use of the "old-school plastic calculator". Simply fill in the thickness, activity(in Curies) and source-film-distance and you get the correct exposure time. R factor for different densities and film types.

Among included elements are;

  • Iridium

  • Selenium

  • Cobalt


GammaCalc Free

Unfortunately, there is no free version of GammaCalc available anymore. If you are interested, please consider the full version.