REDUCTION IN THE ELECTRON-RADIATION DOSE STRENGTH FOR LAYERS OF CHARGED DIELECTRICS

It has been found that during irradiation of high-resistivity inorgani c glasses capable of being radiation charged, there is a reduction in the dose intensity underneath the material. For thin glass samples, th e reduction in dosage is not substantial, however for sample thickness es of approximately 0.8 of the electron range, the dosage is no more t han 15% of its initial value. For thick samples which completely absor b the beam, the dosage from Bremsstrahlung radiation drops to 0.7-0.8 of the initial level. Calculations indicate that the electric field of the space charge after the dosage not only underneath the irradiated layer, but inside it as well.