Electronic excitations and defect creation in LiF crystals

被引：16

作者：

Schwartz, K

机构：

[1] Gesell. fur Schwerionenforschung, D-64220 Darmstadt

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS | 1996年 / 107卷 / 1-4期

关键词：

D O I：

10.1016/0168-583X(95)00846-2

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

A review of ion induced radiation damage processes in alkali halides is presented with special attention paid to Frenkel defect creation by the decay of excitons. The exciton mechanism is analysed for radiation damage creation in LiF crystals under heavy ion (Bi-209 (136.7 MeV/u) and U-238 (11.4 MeV/u)) irradiation at fluences up to 5 x 10(9) ions/cm(2). In both cases F-and F-2-centers are the dominant electronic defects in the track. Uranium tracks in LiF crystals can be etched, whereas after irradiation with Bi ions no track etching was observed.

引用

收藏

页码：128 / 132

页数：5

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