Low-energy positrons of high intensity at the new positron beam facility NEPOMUC

被引：33
作者：
Hugenschmidt, C [1 ]
Schreckenbach, K [1 ]
Stadlbauer, M [1 ]
Strasser, B [1 ]
机构：
[1] Tech Univ Munich, D-85747 Garching, Germany
来源：
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2005年 / 554卷 / 1-3期
关键词：
NEPOMUC; positron source; monoenergetic positron beam; research reactor; PAES; CDB;
D O I：
10.1016/j.nima.2005.07.069
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
In summer 2004 the NEutron-induced POsitron source MUniCh-NEPOMUC-of the new Munich research reactor FRM-II was set into operation at the nominal reactor power of 20 MW. With this novel facility one of the worlds most intense low-energy positron beam is now available. Intensity and positron beam profile measurements were performed at 1 and 30 eV, respectively. Within the first reactor cycle a yield of up to 108 moderated positrons per second was achieved. In the present arrangement of NEPOMUC's instrumentation the monoenergetic positron beam is magnetically guided to a coincident Doppler broadening (CDB) facility and to a positron-induced Auger electron spectroscopy (PAES) analysis chamber. (c) 2005 Elsevier B.V. All rights reserved.
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收藏
页码：384 / 391
页数：8
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