180-DEGREES LOW-ENERGY IMPACT COLLISION ION-SCATTERING SPECTROSCOPY

被引：31
|
作者：
SPITZL, R
NIEHUS, H
COMSA, G
机构：
[1] Institut für Grenzflächen und Vakuumphysik, KFA Jülich, D-5170 Jülich
来源：
REVIEW OF SCIENTIFIC INSTRUMENTS | 1990年 / 61卷 / 02期
关键词：
D O I：
10.1063/1.1141491
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
A low-energy impact collision ion (neutral) scattering spectrometer [(N)ICISS] for exact 180°backscattering has been developed. The energy distribution of the backscattered particles is measured with the time-of-flight method (TOF). 180° backscattering spectra are compared with 145°/140° ones. The nearly identical trajectories for incoming and backscattered particles result in the main advantage of 180° NICISS, namely, a quasi-double focusing effect leads to extremely well behaved peaks in the measured angular patterns.
引用
收藏
页码：760 / 764
页数：5
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