Open AccessAN IN-LINE ANALYSIS SYSTEM OF SLOW POSITRON BEAM FOR MOLECULAR BEAM EPITAXY
Author(s) -
Yi He,
Hu Yong,
D. R. Lun
Publication year - 1992
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.41.517
Subject(s) - positron , molecular beam epitaxy , materials science , tungsten , beam (structure) , epitaxy , physics , optics , nuclear physics , layer (electronics) , nanotechnology , electron , metallurgy
The design and arrangement of an in-line analysis system of slow positron beam for molecular beam epitaxy is described and the analysis method using positron beam technique to study semiconductor films is introduced. In the slow positron moderator, a combination of tungsten-rings and "Venetian blind" structure are used to obtain a higher efficiency of conversion from fast to slow positrons.