Gamma-ray radiation

In gamma ray radiation measurements, the energy distribution of gamma rays from a sample of material is measured.

The amount of measured energy pulses is transformed to content of radioactive elements. The measurements are conducted within Pb shielding using a multichannel gamma-ray spectrometer (Brightspec) with NaI(Tl)  scintillation detector. These measurements are typically used to detect the 137Cs content of lake or marine sediments.

Minimum weight of dry sample (preferred) is 2-3 g and maximum weight of wet sample is 90 g.