The previously proposed creation-annihilation model of electric conductivit
y (CAMEC) was applied to the case of radiation-induced conductivity (RIC) i
n dielectrics. The numerical calculations for Teflon-like material were per
formed. The results,show that if radiation-induced conductivity is less tha
n 10(-13) S/m, the RIC has enough time to attain very low values before it
nearly compensates the spatial, implanted charge. In general, application o
f the one-dimensional CAMEC to the case of RIC qualitatively reproduces the
experimentally observed radiation effects on the lifetime of electrets. (C
) 2001 Elsevier Science B.V. All rights reserved.