Передача единицы эквивалентной равновесной объемной активности радона

Abstract

PAEC radiometers calibration technique using radon progeny deposition model is considered. Calibrations are performed into the Russian Radon Reference Chamber (Big Radon Chamber). The developed model takes into account all the metrological and technical parameters affecting the measurements results (such as pumping time, pumping velosity, measuring time, etc.). Approximate values of typical PAEC radiometer calibration uncertainty are given. A usual uncertainty of PAEC radiometer calibration is 8-10 %. Developed model applicability for Thoron progeny measurements is considered.