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SATURATION IN THE DAMAGE EFFICIENCY IN MAGNETIC INSULATORS IRRADIATED BY HIGH-ENERGY HEAVY-IONS

被引：77
作者：
STUDER, F
HOUPERT, C
PASCARD, H
SPOHR, R
VETTER, J
FAN, JY
TOULEMONDE, M
机构：
[1] ECOLE POLYTECH, SOLIDES IRRADIES LAB, F-91128 PALAISEAU, FRANCE
[2] GESELL SCHWERIONENFORSCH INST, W-6100 DARMSTADT, GERMANY
来源：
RADIATION EFFECTS AND DEFECTS IN SOLIDS | 1991年 / 116卷 / 1-2期
关键词：
DAMAGE EFFICIENCY; MAGNETIC INSULATORS; Y3FE5O12 AND BAFE12O19; KR AND XE HEAVY IONS; TEM; ELECTRONIC STOPPING;
D O I：
10.1080/10420159108221345
中图分类号：
TL [原子能技术]; O571 [原子核物理学];
学科分类号：
0827 ; 082701 ;
摘要：
Magnetic garnet Y3Fe5O12 and magnetic ferrite BaFe12O15 have been irradiated at room temperature by Kr and Xe ions using the GANIL accelerator at Caen and by U ions using the Unilac accelerator at Darmstadt. These experiments allow to cover a wide range of electronic stopping power values (between 7 MeV/μm and 45 MeV/μm) using the ion beam at energy between 40 MeV/a.m.u. and 8 MeV/a.m.u., Transmission Mössbauer spectrometry has been used to determine the damage cross section A for the corresponding value of electronic stopping power. High resolution electron microscopy observations confirm the A determination for the highest value of dE/dx. The main feature is the appearance of a saturation in the damage efficiency e = A/dE/dx above an electronic stopping power value TM. Using all the previous results, damage evolution and damage morphology description will be proposed and comparison with the chemical etching sensitivity of the magnetic garnet will be done. © 1991, Taylor & Francis Group, LLC. All rights reserved.
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页码：59 / 70
页数：12
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