Measurements Of Radon Permeability Through Some Membranes
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The diffusion of 222Rn through different types of membranes has been studied by an equilibrium method using a Si surface barrier a-detector with a resolution of 14 keV FWHM for ^'Am. The permeability constant for Aluminized mylar, Aluminized polycarbonate, Polyethylene, Cellulose nitrate, Bisphenol-A polycarbonate and different types of wall paper have been evaluated and compared with previous data. The effect of membrane thickness on the permeability constant of Bisphenol-A polycarbonate is discussed.