Imperial College London

ProfessorRobinGrimes

Faculty of EngineeringDepartment 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{Grimes:2020:10.1080/14786435.2020.1834636,
author = {Grimes, R and Than, YR},
doi = {10.1080/14786435.2020.1834636},
journal = {Philosophical Magazine},
pages = {306--325},
title = {Predicting radiation damage in beryllium},
url = {http://dx.doi.org/10.1080/14786435.2020.1834636},
volume = {101},
year = {2020}
}

RIS format (EndNote, RefMan)

TY  - JOUR
AB - Displacement damage in beryllium was predicted as a function of temperature and energyusing molecular dynamics simulations. An key aim of this study was to determine if averageresults from large displacement cascades correspond to values predicted by the Kinchin-Pease(K-P) model. The number of residual defects remaining after 1 ps increased linearly withprimary knock-on atom (PKA) energy from 0.5 keV to 2.5 keV, while the extent of residualdamage was largely temperature independent from 300 K to 1100 K. The same simulationmodel was used to predict the directionally averaged probability of displacement as a functionof displacement energy, P(EPKA), and thereby the threshold displacement energy at whichthe probability for displacement is 100%, E1.0d = 105 eV. There is an excellent correspondencebetween the K-P prediction using Ed = E1.0dand the number of residual defects remainingafter the initial recovery phase. Also, by utilising P(EPKA), a modification to the K-P modelis proposed that gives rise to an average model prediction when EPKA < 2E1.0d.
AU - Grimes,R
AU - Than,YR
DO - 10.1080/14786435.2020.1834636
EP - 325
PY - 2020///
SN - 1478-6435
SP - 306
TI - Predicting radiation damage in beryllium
T2 - Philosophical Magazine
UR - http://dx.doi.org/10.1080/14786435.2020.1834636
UR - https://www.tandfonline.com/doi/full/10.1080/14786435.2020.1834636
UR - http://hdl.handle.net/10044/1/82223
VL - 101
ER -