Simultaneous measurement of gamma rays and radon emission (SIMGRAE) for solid samples radioactivity assessment

A gamma/radon high-sensitivity radioactivity counter has been built in the frame of a research and development aimed at assessing the effect of construction materials on the annual radioactive dose absorbed by individuals. The counter features simultaneous gamma measurement (by high-resolution germanium spectroscopy) and radon evaluation through electrostatic collection and alpha spectroscopy of radon daughters.