KWS-1 high-resolution small-angle neutron scattering instrument at JCNS: current state

Feoktystov, Artem; Pipich, Vitaliy; Hanslik, Romuald; Di, Zhenyu; Frielinghaus, Henrich; Brückel, Thomas; Ioffe, Alexander; Appavou, Marie-Sousai; Kleines, Harald; Babcock, Earl; Jaksch, Sebastian; Engels, Ralf; Kemmerling, Günter; Richter, Dieter

doi:10.1107/S1600576714025977

Journal Article

FZJ-2015-01198

KWS-1 high-resolution small-angle neutron scattering instrument at JCNS: current state

Feoktystov, A. (Corresponding Author)FZJ* ; Frielinghaus, H.FZJ* ; Di, Z.FZJ* ; Jaksch, S.FZJ* ; Pipich, V.FZJ* ; Appavou, M.-S.FZJ* ; Babcock, E.FZJ* ; Hanslik, R.FZJ* ; Engels, R.FZJ* ; Kemmerling, G.FZJ* ; Kleines, H.FZJ* ; Ioffe, A.FZJ* ; Richter, D.FZJ* ; Brückel, T.FZJ*

2015
Munksgaard Copenhagen

Journal of applied crystallography 48(1), 61 - 70 (2015) [10.1107/S1600576714025977]

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Please use a persistent id in citations: doi:10.1107/S1600576714025977

Abstract: The KWS-1 small-angle neutron scattering (SANS) instrument operated by the Jülich Centre for Neutron Science (JCNS) at the research reactor FRM II of the Heinz Maier-Leibnitz Zentrum in Garching near Munich has been recently upgraded. The KWS-1 instrument was updated, from its active collimation apertures to the detector cabling. Most of the parts of the instrument were installed for the first time, including a broadband polarizer, a large-cross-section radio-frequency spin flipper, a chopper and neutron lenses. A custom-designed hexapod in the sample position allows heavy loads and precise sample positioning in the beam for conventional SANS experiments as well as for grazing-incidence SANS under applied magnetic field. With the foreseen in situ polarization analysis the main scientific topic of the instrument tends towards magnetism. The performance of the polarizer and flipper was checked with a polarized 3He cell at the sample position. The results of these checks and a comparison of test measurements on a ferrofluid in a magnetic field with polarized and nonpolarized neutrons are presented.

Keyword(s): Instrument and Method Development (1st) ; Others (1st) ; Information Technology and Functional Materials (1st) ; Instrument and Method Development (2nd) ; Magnetism (2nd) ; Soft Condensed Matter (2nd)