Fractal geometry of collision cascades
- 1 February 1989
- journal article
- Published by Springer Nature in Journal of Materials Research
- Vol. 4 (1) , 137-143
- https://doi.org/10.1557/jmr.1989.0137
Abstract
The fractal nature of self-ion collision cascades is first described using an inverse power potential and then by the more realistic potential of Biersack–Ziegler. Based on the model of Cheng et al. and TRIM Monte Carlo simulations, the average cascade fractal dimension is a function of both atomic mass and initial energy. The instantaneous fractal dimension increases as the cascade evolves. A critical energy Ec for producing a dense subcascade is derived and it is shown that Ec agrees well with the onset energy for constant damage efficiency.Keywords
This publication has 15 references indexed in Scilit:
- On the stochastic theory of point defect diffusion during irradiation: Cascade size and shape effectsJournal of Nuclear Materials, 1985
- Refined universal potentials in atomic collisionsNuclear Instruments and Methods in Physics Research, 1982
- Computer simulation of high energy recoils in FCC metals: Cascade shapes and sizesJournal of Nuclear Materials, 1981
- Molecular dynamic calculations of energetic displacement cascadesJournal of Nuclear Materials, 1981
- High density cascade effectsRadiation Effects, 1981
- Contribution of strain effects toward the damage measured in semiconductors by channelingRadiation Effects, 1978
- Energy Dependence of Defect Production in Displacement Cascades in SilverPhysical Review Letters, 1977
- A proposed method of calculating displacement dose ratesNuclear Engineering and Design, 1975
- Computer simulation of atomic-displacement cascades in solids in the binary-collision approximationPhysical Review B, 1974
- The Displacement of Atoms in Solids by RadiationReports on Progress in Physics, 1955