3D HYDROGEN PROFILING BY ELASTIC RECOIL DETECTION ANALYSIS IN TRANSMISSION GEOMETRY

被引:18
|
作者
TIRIRA, J
TROCELLIER, P
FRONTIER, JP
MASSIOT, P
COSTANTINI, JM
MORI, V
机构
[1] CEA,DAM,PTN,F-91680 BRUYERES CHATEL,FRANCE
[2] CEA,CENS,INSTN,VANDEGRAAFF LAB,F-91191 GIF SUR YVETTE,FRANCE
关键词
D O I
10.1016/0168-583X(90)90345-U
中图分类号
TH7 [仪器、仪表];
学科分类号
0804 ; 080401 ; 081102 ;
摘要
An analytical procedure and a simulation-optimization algorithm are described for hydrogen determination based on elastic recoil detection induced by low-energy 4He ions (≤ 3 MeV) using transmission geometry. Hydrogen concentration depth profiles can be derived from the experimental recoil spectra for a depth range of up to 6 μm with a resolution better than 40 nm at the surface. The method is applied to thin polyimide films irradiated by high-energy heavy ions. The 3D hydrogen distribution is determined with a 4He+ mubeam. A high-hydrogen-concentration zone below the surface is shown. The hydrogen distribution is seen to evolve during the 4He+ irradiation. © 1990.
引用
收藏
页码:135 / 139
页数:5
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