Bargholz, Kim

The standard method for determination of ground level dose rates from airborne gamma-ray is the integral count rate which for a constant flying altitude is assumed proportional to the dose rate. The method gives reasonably results for natural radioactivity which almost always has the same energy distribution. When manmade radioactivity is present, this is no longer the case. Another method based on giving the counts of different channels a different weighting has been examined. The new method is more robust against varying energy distribution, and for energies above 200 keV it gives excellent results

Dose Rate Determination from Airborne Gamma-ray Spectra

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