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Proceedings Paper

The New Neutron Guide Laboratory At The FRJ-2 Reactor In The KFA Julich And Its Special Beam Forming Devices
Author(s): B. Alefeld; J. Duppich; O. Scharpf; A. Schirmer; T. Springer; K. Werner
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Paper Abstract

The new neutron guide laboratory ELLA at the JUlich research reactor started its full operation at the beginning of this year. The guide system supplies 10 instruments with cold neutrons from the rebuilt hydrogen cold source. We present a description of the technical layout of the guide system. In order to achieve a larger solid angle, the guides were covered with isotopically pure 58Ni. The obtained neutron fluxes will be quoted. In addition, special beam forming devices were installed, namely a neutron guide junction at the entrance of the guide system, a multislit-bender with a radius of curvature of only 57 m, which achieves a large beam separation, and conical focusing neutron guides with supermirror layers to increase the flux at the sample position.

Paper Details

Date Published: 18 January 1989
PDF: 9 pages
Proc. SPIE 0983, Thin Film Neutron Optical Devices: Mirrors, Supermirrors, Multilayer Monochromators, Polarizers, and Beam Guides, (18 January 1989); doi: 10.1117/12.948749
Show Author Affiliations
B. Alefeld, Institut fur- Festkorperforschung der Kernforschungsanlage Julich GmbH (Germany)
J. Duppich, Institut fur- Festkorperforschung der Kernforschungsanlage Julich GmbH (Germany)
O. Scharpf, Institute Laue-Langevin (France)
A. Schirmer, Universitat Marburg (Germany)
Universitat Hannover (Germany)
T. Springer, Institut fur- Festkorperforschung der Kernforschungsanlage Julich GmbH (Germany)
K. Werner, KFA Julich (Germany)


Published in SPIE Proceedings Vol. 0983:
Thin Film Neutron Optical Devices: Mirrors, Supermirrors, Multilayer Monochromators, Polarizers, and Beam Guides
Charles F. Majkrzak, Editor(s)

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