A model was proposed for the irradiation-induced production of defects in amorphous samples. It was shown that an irreversible creation of defects from network sites obeyed power-law kinetics, and that a reversible activation of precursor sites obeyed Kohlrausch kinetics. Electron spin resonance methods were used to measure the concentration of irradiation-induced E’ centers, in high-purity amorphous material, over a very wide dose range. An agreement between theoretical and experimental defect densities, over more than 4 orders of magnitude of the dose, was considered to be unprecedented.

V.A.Mashkov, W.R.Austin, L.Zhang, R.G.Leisure: Physical Review Letters, 1996, 76[16], 2926-9