Experimental Results of Bremsstrahlung Shielding from Dielectric Trapping with the Use of Tl-204

A method is described for investigating the effects on bremsstrahlung of charge buildup in a dielectric from betas emitted by a radionuclide. Data is also reported of bremsstrahlung attenuation as a function of days of irradiation with point of maximum attenuation depending on magnitude of charge current. Cyclic behavior is indicated. Effects of charge buildup in dielectric on bremsstrahlung have applications as shielding against radiations from energetic electrons.