2001 Volume 50 Issue 11 Pages 563-569
Polystyrene is the main component of plastic scintillator, and absorbs radon as well as liquid aromatic solvents. I proposed a new radon monitor which detects radon distributed into plastic scintillator. As a preliminary experiment, plastic scintillator was put in a counting vial together with radon water and was measured by liquid scintillation counter. It was found that the scintillation spectrum of radon series was observed and the counting rate was proportional to the radon concentration in water. Then the radon concentration in water could be measured by plastic scintillator absorbent of radon. This method, APS: Absorptive Plastic Scintillation counting, is practicable to continuous radon monitor for environmental research.
