ENERGY-LOSS MEASUREMENTS FOR 20-KEV POSITRONS IN AL THIN-FILMS

被引：1
|
作者：
MASSOUMI, GR
LENNARD, WN
SCHULTZ, PJ
PORCELLI, TA
SIMPSON, PJ
机构：
[1] The Positron Beam Laboratory, Department of Physics, The University of Western Ontario, London
来源：
APPLIED SURFACE SCIENCE | 1995年 / 85卷 / 1-4期
基金：
加拿大自然科学与工程研究理事会;
关键词：
D O I：
10.1016/0169-4332(94)00305-X
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
A modified cooled source-moderator design using solid Ar moderation to produce monoenergetic positron beams is described. The decay rate over long periods is observed to be similar to 0.1% per hour. Results from angular energy loss distributions in a 63 mu g/cm(2) thick Al target for incident 20 keV positrons using a high-resolution energy analyzer are presented.
引用
收藏
页码：39 / 42
页数：4
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