Radon dose and aerosols

The equilibrium factor value (F) was measured in the NRPB radon chamber and the corresponding track density ratio (r = D/D-0) of bare (D) and diffusio n (D-0) LR-115 nuclear track detectors was determined, as well as the regre ssion equation F(r). Experiments with LR-115 nuclear track detectors and ae rosol sources (burning candle and cigarette) were carried out in the Osijek University radon chamber and afterwards an empirical relationship between the equilibrium factor and aerosol concentration was derived. For the purpo se of radon dose equivalent assessment, procedures for determining the unat tached fraction of radon progeny were introduced using two nuclear track de tectors.