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Difficulties in measuring electrical conductivities in highly insulating materials: Radiation-induced electrical degradation is an artifact
Published online by Cambridge University Press: 31 January 2011
Abstract
Measurement of the electrical conductivity in high-resistance insulators is made difficult by previously unrecognized limits in the electric guarding technique. Electron irradiation experiments on single-crystalline Al2O3, performed for studying the effects of irradiation on the electrical conductivity, revealed that radiation-induced electrical degradation effects in ceramic insulators, previously reported to occur after electron, ion, and neutron irradiation, are an artifact.
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