Abstract
A modification of the quasi-dynamical computer code ADDES has been developed to allow for the simulation of defect production in high energy cascades. In the first of a two-stage modeling process, the cascade is allowed to develop until no atom has more than a relatively high cut-off energy. As atoms fall below the cut-off, they are tagged and removed from consideration during the remainder of the development. The second stage is the evaluation of defect production by energetic atoms tagged in the first stage using a defect yield function determined from dynamical simulations of low energy events. This code is used to simulate defect production in 10 keV cascades in several directions in copper, and the results are compared with those of the binary collision code MARLOWE. Good agreement is obtained when an effective recombination radius of 2.2 lattice parameters is assumed.
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