In order to calibrate the concentration of radon in the scintillation chamber quickly,this paper proposes a method to calibrate the radon concentration by obtaining the calibration factor of measuring radon in scintillation chamber at different times without any experim...MORE In order to calibrate the concentration of radon in the scintillation chamber quickly,this paper proposes a method to calibrate the radon concentration by obtaining the calibration factor of measuring radon in scintillation chamber at different times without any experimen...