Radon contamination in the water

1
Radon contamination in the water
Simulated 800M 214Bi decays uniformly in the
water tank
2 cts in 1 MeV
Energy (MeV)
Energy (MeV)
Background index lt 10-2 R cts/kg keV y (95
CL)
222Rn rate in Bq/m3
For 25 mBq/m3 ? lt 2-3 10-4 cts/kg keV y (95
CL)
For 5 mBq/m3 ? lt 5 10-5 cts/kg keV y (95 CL)