Modeling analysis of radiation induced conductivity in electrical insulator

Abstract

By introducing a new term into the traditional Rose-Fowler-Vaisberg model, The exponential relationship between radiation induced conductivity and dose rate is explained. The evolution of radiation induced conductivity under different radiation conditions are also analyzed. The result indicates that dose rate mainly changes the magnitude of radiation induced conductivity while the long-time decay of radiation induced conductivity is determined by carrier recombination rate of the material.

Fast Measurement of Dielectric Conductivity for Space Application by Surface Potential Decay Method

“…It grows with dose rate but does not completely fulfill the power law due to the thickness of polyimide samples. [12] When most electrons cannot pass through the sample but deposit in the sample, the effect of radiation-induced conductivity on surface potential is weakened by the movement of free charges inside the sample. [13] However, the result in Fig.…”