Imperial College London
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ProfessorRobinGrimes

Faculty of Engineering, Department of Materials

BCH Steele Chair in Energy Materials
 
 
 
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Contact

 

+44 (0)20 7594 6730r.grimes

 
 
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Location

 

B303cBessemer BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Jackson:2016:10.1063/1.4958974,
author = {Jackson, ML and Fossati, PCM and Grimes, RW},
doi = {10.1063/1.4958974},
journal = {Journal of Applied Physics},
title = {Simulations of threshold displacement in beryllium},
url = {http://dx.doi.org/10.1063/1.4958974},
volume = {120},
year = {2016}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Atomic scale molecular dynamics simulations of radiation damage have been performed on beryllium. Direct threshold displacement simulations along a geodesic projection of directions were used to investigate the directional dependence with a high spatial resolution. It was found that the directionally averaged probability of displacement increases from 0 at 35 eV, with the energy at which there is a 50% chance of a displacement occurring is 70 eV and asymptotically approaching 1 for higher energies. This is, however, strongly directionally dependent with a 50% probability of displacement varying from 35 to 120 eV, with low energy directions corresponding to the nearest neighbour directions. A new kinetic energy dependent expression for the average maximum displacement of an atom as a function of energy is derived which closely matches the simulated data.
AU  - Jackson,ML
AU  - Fossati,PCM
AU  - Grimes,RW
DO  - 10.1063/1.4958974
PY  - 2016///
SN  - 0021-8979
TI  - Simulations of threshold displacement in beryllium
T2  - Journal of Applied Physics
UR  - http://dx.doi.org/10.1063/1.4958974
UR  - http://hdl.handle.net/10044/1/39438
VL  - 120
ER  -
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