We were looking for uraninite on the mountains of mining waste near the town of Příbram, where there were mines where ordinary prisoners and political prisoners from nearby labor camps worked, and the mined ore was then "very voluntarily" sent to the USSR.

I have nothing to worry about,but its still a bit dumb,
the dose in two hours is slightly lower (0,8x) than during a normal X-ray examination of the leg. the main danger is the dust.

There may also have been inaccuracies in the measurements, because the GM counter we used was a GM module, Arduino µC, and display, packed in a snack box.