Modelling the formation of fission tracks in apatite minerals using molecular dynamics simulations
Modelling the formation of fission tracks in apatite minerals using molecular dynamics simulations
复制标题
使用分子动力学模拟模拟磷灰石矿物中裂变径迹的形成
DOI:
10.1007/s00269-008-0250-6
复制
发表时间:
2008
影响因子:
1.4
通讯作者:
Rabone J
中科院分区:
文献类型:
--
作者:
Rabone J
We introduce a simple method to simulate the “ion explosion spike” mechanism of fission track formation within the framework of classical molecular dynamics. The method is applied to six apatite compositions and the resulting tracks are compared with each other as well as with the damage produced by another mechanism—the “Displacement spike”. In contrast to experimentally observed tracks, the radii of simulated tracks are not dependent on their direction in the crystal. Since the simulations model accurately the elastic response of apatites, this suggests that the experimentally observed difference in track radii for tracks along different crystal directions is not entirely caused by anisotropy in the elasticity of apatite. We suggest that anisotropy in the interactions between the electric fields of fission fragments and the crystal ions is a major factor in the final radii of fission tracks. In fluorapatite, the simulations also reveal the formation of small clusters of fluorite-like material in the core of the fission track, a phenomenon which has yet to be confirmed experimentally.
登录
查看更多内容
影响因子:
3.7
作者:
K. Trachenko;M. Dove;E. Salje
通讯作者:
K. Trachenko;M. Dove;E. Salje
DOI:
--
发表时间:
1998
期刊:
影响因子:
--
作者:
P. Mack;J. Dyke;T. G. Wright
通讯作者:
T. G. Wright
DOI:
--
发表时间:
1965
期刊:
影响因子:
--
作者:
G. Wappler
通讯作者:
G. Wappler
DOI:
10.1098/rsta.2004.1419
发表时间:
2004-09
期刊:
Philosophical Transactions of the Royal Society of London. Series A: Mathematical, Physical and Engineering Sciences
影响因子:
--
作者:
I. Todorov;W. Smith
通讯作者:
I. Todorov;W. Smith
DOI:
--
发表时间:
1978
期刊:
影响因子:
--
作者:
K. Sudarsanan;R. Young
通讯作者:
R. Young