The New Neutron Guide Laboratory At The FRJ-2 Reactor In The KFA Julich And Its Special Beam Forming Devices

B. Alefeld; J. Duppich; O. Scharpf; A. Schirmer; T. Springer; K. Werner

doi:10.1117/12.948749

18 January 1989 The New Neutron Guide Laboratory At The FRJ-2 Reactor In The KFA Julich And Its Special Beam Forming Devices

B. Alefeld, J. Duppich, O. Scharpf, A. Schirmer, T. Springer, K. Werner

Author Affiliations +

Proceedings Volume 0983, Thin Film Neutron Optical Devices: Mirrors, Supermirrors, Multilayer Monochromators, Polarizers, and Beam Guides; (1989) https://doi.org/10.1117/12.948749
Event: 32nd Annual International Technical Symposium on Optical and Optoelectronic Applied Science and Engineering, 1988, San Diego, CA, United States

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.

Citation Download Citation

B. Alefeld, J. Duppich, O. Scharpf, A. Schirmer, T. Springer, and K. Werner "The New Neutron Guide Laboratory At The FRJ-2 Reactor In The KFA Julich And Its Special Beam Forming Devices", Proc. SPIE 0983, Thin Film Neutron Optical Devices: Mirrors, Supermirrors, Multilayer Monochromators, Polarizers, and Beam Guides, (18 January 1989); https://doi.org/10.1117/12.948749

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