Abstract
In this work we have simulated the migration of H centres along dislocation lines and their recombination with Fzcentres after a pulse irradiation. The variable parameter in our simulations was the probability p of recombination between H and Fzcentres when they meet. The results of the simulation for p = 1 were in good agreement with a previous derived approximation and with the experimental data. We found that the function I = I0n-αcould be fitted very well to the afterglow decay for all p values. The afterglow yield, defined as the total amount of afterglow, divided by the total amount of generated precursors of the H-Fzpairs was found to decrease with increasing p. The exponent α however was found to be remarkably stable at 1.49 over a range of p from 1 to 0.2 below which it decreases to 0.5.
Original language | American English |
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Pages (from-to) | 705-708 |
Number of pages | 4 |
Journal | Radiation Effects and Defects in Solids |
DOIs | |
State | Published - 1 Dec 2002 |