Abstract
It is pointed out that the ‘ideal source’ model of annealing of dislocation loops, recently discussed by Seidman and Balluffi, may overestimate the rate of annealing under emission limited conditions by a factor of about five as compared with the jog model of Friedel. Theoretical considerations to distinguish between emission and diffusion limited conditions seem to be marginal, and mainly a matter of opinion as to which model is likely to be applicable.

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