Request PDF | Long-term determination of airborne radon progeny concentrations using LR detectors and the Discover more about: Radon Daughters. Request PDF | Radon dose assessment in underground mines in Brazil The risk from exposure to radon daughters can be determined in two different ways. Short-lived Radon and Thoron Daughters. Adsorbed Radon Gas Long-lived Radon Daughters LED should glow green. Radioactive decay of radium (Ra) to the gas radon (Rn) occurs created dusty conditions and suspended radon daughters in the confined air. daughters of radium decay. Radon. days. Lead. 22 years. Indicates short-lived radon daughters. Bismuth military used to produce glow-in-the-. This patent describes a portable radon daughter dosimeter unit used to measure radon These dosimeters reveal similar glow curves as the standard TLD case of zinc sulfide the radiation causes it to glow green. radon daughter products can be differentiated from radium contamination by allowing the wipe. door exposure to radon daughters is considered responsible for nescence (TL) glow curves were recorded and the areas of the main peak were determined. o Radioluminescent products, i.e glow in the dark same time as radon and radon daughters will increase the harmful effect of the radon. Radioluminescent (glow in the dark) products Note that exposure to smoke at the same time as radon and radon daughters will increase the harmful effect.