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

被引：122

作者：

Feoktystov, Artem V. ^{[1
]}

Frielinghaus, Henrich ^{[1
]}

Di, Zhenyu ^{[1
]}

Jaksch, Sebastian ^{[1
]}

Pipich, Vitaliy ^{[1
]}

Appavou, Marie-Sousai ^{[1
]}

Babcock, Earl ^{[1
]}

Hanslik, Romuald ^{[2
]}

Engels, Ralf ^{[3
]}

Kemmerling, Guenther ^{[3
]}

Kleines, Harald ^{[3
]}

Ioffe, Alexander ^{[1
]}

Richter, Dieter ^{[4
,5
]}

Brueckel, Thomas ^{[6
,7
]}

机构：

[1] Forschungszentrum Julich, Julich Ctr Neutron Sci JCNS, Outstn MLZ, Garching, Germany

[2] Forschungszentrum Julich, Cent Inst Engn Elect & Analyt ZEA 1, D-52425 Julich, Germany

[3] Forschungszentrum Julich, Cent Inst Engn Elect & Analyt ZEA 2, D-52425 Julich, Germany

[4] Forschungszentrum Julich, Ctr Neutron Sci JCNS 1, D-52425 Julich, Germany

[5] Inst Complex Syst ICS 1, Julich, Germany

[6] Forschungszentrum Julich, Ctr Neutron Sci JCNS 2, D-52425 Julich, Germany

[7] JARA FIT, Peter Grunberg Inst PGI 4, Julich, Germany

来源：

JOURNAL OF APPLIED CRYSTALLOGRAPHY | 2015年 / 48卷

关键词：

small-angle neutron scattering; grazing-incidence small-angle neutron scattering; diffractometers; instrument upgrades; SPIN FILTER; MAGNETIC NANOSTRUCTURES; POLARIZATION ANALYSIS; CONTRAST-VARIATION; COLD NEUTRONS; THIN-FILMS; SANS; FERROFLUIDS; NANOPARTICLES; DIFFRACTION;

D O I：

10.1107/S1600576714025977

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The KWS-1 small-angle neutron scattering (SANS) instrument operated by the Julich 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 He-3 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.

引用

页码：61 / 70

页数：10

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