Unprecedented intensity of a low-energy positron beam

被引：92

作者：

Hugenschmidt, C. ^{[1
]}

Loewe, B. ^{[1
]}

Mayer, J. ^{[1
]}

Piochacz, C. ^{[1
]}

Pikart, P. ^{[1
]}

Repper, R. ^{[1
]}

Stadlbauer, M. ^{[1
]}

Schreckenbach, K. ^{[1
]}

机构：

[1] Tech Univ Munich, ZWEFRM 11 E21, D-85747 Garching, Germany

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2008年 / 593卷 / 03期

关键词：

NEPOMUC; positron source; monoenergetic positron beam; research reactor;

D O I：

10.1016/j.nima.2008.05.038

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

A new in-pile gamma-converter and Pt-moderator was recently installed at the neutron induced positron source NEPOMUC. The intensity of the moderated positron beam is unprecedented and amounts to (9.0 +/- 0.8) x 10(8) moderated positrons per second at an energy of 1 keV. Hence, the beam facility NEPOMUC provides the world highest intensity of a monoenergetic positron beam reported so far. Up to now. no degradation of the positron yield has been observed for several weeks of operation. Thus, the long-term stability of the positron beam enables experiments with high reliability. (c) 2008 Elsevier B.V. All rights reserved.

引用

页码：614 / 619

页数：6

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