A testing set-up for a micro-analysis positron beam facility

被引：2
|
作者：
Jorgensen, LV
van Veen, A
Schut, H
Winkelman, A
Kruit, P
机构：
[1] Delft Univ Technol, Inst Interfac Reactor, NL-2629 JB Delft, Netherlands
[2] Delft Univ Technol, Dept Appl Phys, NL-2628 CJ Delft, Netherlands
来源：
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 1999年 / 427卷 / 1-2期
关键词：
positron; particle optics; positron moderation;
D O I：
10.1016/S0168-9002(98)01567-8
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
A description is given of an electrostatically guided positron beam set-up designed for testing the performance of a remoderation stage in a positron micro-beam facility. In this set-up positrons from a 15 mCi Na-22 source are moderated in a 3.5 mu m thick tungsten foil and focused onto the entrance of a 90 degrees cylindrical mirror deflector. At the exit of the deflector the positrons are focused onto a micro-channel plate with phosphor screen assembly in order to characterise the beam diameter and intensity at the entrance of the remoderation stage. (C) 1999 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：131 / 135
页数：5
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