Tracks induced in CaF2 by MeV cluster irradiation
Tracks induced in CaF2 by MeV cluster irradiation
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DOI：
10.1016/s0168-583x(98)00171-2
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发表时间：
1998-05-01
影响因子：
1.3
通讯作者：
Della-Negra, S
中科院分区：
文献类型：
--
作者：
Jensen, J;Dunlop, A;Della-Negra, S
用几十MeV的团簇离子在300K的垂直入射条件下对氟石(CaF2)晶体样品进行了辐照。辐照后，在透射电子显微镜下观察样品的形态。团簇离子产生间歇的径迹，在电子束下是稳定的。轨迹由排列的多面阴离子空洞组成，也可以被视为钙夹杂。此外，有时在轨道入口和出口观察到与溅射有关的表面对比。(C)1998年，爱思唯尔科学公司出版。保留所有权利。
Samples of fluorite (CaF2) crystals were irradiated at 300 K with cluster ions of a few tens MeV at normal incidence. After irradiation the samples were observed in a transmission electron microscope. The cluster ions create intermittent tracks which are stable under the electron beam. The tracks consist of aligned faceted anion voids, which can also be viewed as calcium inclusions. Furthermore, surface contrasts associated to sputtering are sometimes observed at the track entrance and exit. (C) 1998 Published by Elsevier Science B.V. All rights reserved.