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We propose the design of a Resonance SPin-echo spECtrometer for exTreme studies, RESPECT, that is ideally suited for the exploration of non-dispersive processes such as diffusion, crystallization, slow dynamics, tunneling processes, crystal…

仪器与探测器 · 物理学 2016-08-03 Robert Georgii , Jonas Kindervater , Christian Pfleiderer , Peter Böni

Small-Angle Scattering (SAS) investigates structures in samples that generally range from approximately 0.5 nm to a few 100 nm. This can both be done for isotropic samples such as blends and liquids, as well as anisotropic samples such as…

仪器与探测器 · 物理学 2023-09-22 Sebastian Jaksch

Polarization-analyzed small-angle neutron scattering (PASANS) is an advanced technique that enables the selective investigation of magnetic scattering phenomena in magnetic materials and distinguishes coherent scattering obscured by…

Kinetic small-angle neutron scattering provides access to the microscopic properties of mesoscale systems under slow, periodic perturbations. By interlocking the phases of neutron pulse, sample modulation, and detector signal, so-called…

仪器与探测器 · 物理学 2022-12-15 Denis Mettus , Alfonso Chacon , Andreas Bauer , Sebastian Mühlbauer , Christian Pfleiderer

It is generally assumed by most of the small-angle neutron scattering (SANS) user community that a neutrons energy is unchanged during SANS measurements. Here, the scattering from water, specifically light water, was measured on the EQ-SANS…

The neutron resonance spin echo (NRSE) technique has the potential to increase the Fourier time and energy resolution in neutron scattering by using radio-frequency (rf) neutron spin-flippers. However, aberrations arising from variations in…

仪器与探测器 · 物理学 2023-03-15 Stephen J. Kuhn , Sam McKay , Fankang Li , Robert M. Dalgliesh , Eric Dees , Kaleb Burrage , Jiazhou Shen , Roger Pynn

Dynamic Light Scattering (DLS) and Small-Angle Neutron Scattering (SANS) are two key tools with which to probe the dynamic and static structure factor, respectively, in soft matter. Usually DLS and SANS measurements are performed…

Exploiting small angle X-ray and neutron scattering (SAXS/SANS) on the same sample volume at the same time provides complementary nanoscale structural information at two different contrast situations. Compared with an independent…

In view of the trend towards smaller samples and experiments under extreme conditions it is important to deliver small and homogeneous neutron beams to the sample area. For this purpose, elliptic and/or Montel mirrors are ideally suited as…

仪器与探测器 · 物理学 2015-12-09 Stefan Weichselbaumer , Georg Brandl , Robert Georgii , Jochen Stahn , Tobias Panzner , Peter Böni

Making material experiments more efficient is a high priority for materials scientists who seek to discover new materials with desirable properties. In this paper, we investigate how to optimize the laborious sequential measurements of…

材料科学 · 物理学 2019-10-24 Takuya Kanazawa , Akinori Asahara , Hidekazu Morita

The instrumental layout and technical realisation of the neutron resonant spin echo (NRSE) spectrometer RESEDA at the Heinz Maier-Leibnitz Zentrum (MLZ) in Garching, Germany, is presented. RESEDA is based on a longitudinal field…

We report results of tests of the MISANS technique at the CG-1D beamline at High Flux Isotope Reactor (HFIR), Oak Ridge National Laboratory (ORNL). A chopper at 40 Hz simulated a pulsed neutron source at the beamline. A compact turn-key…

仪器与探测器 · 物理学 2011-12-14 G. Brandl , J. Lal , J. Carpenter , L. Crow , L. Robertson , R. Georgii , P. Böni , M. Bleuel

In the quest to image the three-dimensional magnetization structure we show that the technique of magnetic small-angle neutron scattering (SANS) is highly sensitive to the details of the internal spin structure of nanoparticles. By…

介观与纳米尺度物理 · 物理学 2020-09-15 Laura G. Vivas , Rocio Yanes , Dmitry Berkov , Sergey Erokhin , Mathias Bersweiler , Dirk Honecker , Philipp Bender , Andreas Michels

Neutron scattering is a well-established tool for the investigation of the static and dynamic properties of condensed matter systems over a wide range of spatial and temporal scales. Many studies of high interest, however, can only be…

仪器与探测器 · 物理学 2022-08-10 Christoph Herb , Oliver Zimmer , Robert Georgii , Peter Böni

Neutron scattering is a unique and versatile characterization technique for probing the magnetic structure and dynamics of materials. However, instruments at neutron scattering facilities in the world is limited, and instruments at such…

The effect of temperature dependent asymmetric line broadening is investigated in Cu(NO$_3$)$_2\cdot$2.5D$_2$O, a model material for a 1-D bond alternating Heisenberg chain, using the high resolution neutron-resonance spin-echo (NRSE)…

强关联电子 · 物理学 2016-05-04 Felix Groitl , Thomas Keller , Katharina Rolfs , D. Alan Tennant , Klaus Habicht

Resolution smearing is a critical challenge in the quantitative analysis of two-dimensional small-angle neutron scattering (SANS) data, particularly in studies of soft matter flow and deformation using SANS. We present the central moment…

The Spin Asymmetries of the Nucleon Experiment (SANE) performed inclusive, double-polarized electron scattering measurements of the proton at the Continuous Electron Beam Accelerator Facility at Jefferson Lab. A novel detector array…

The recent development of a micromagnetic simulation methodology - suitable for multiphase magnetic nanocomposites - permits the computation of the magnetic microstructure and of the associated magnetic small-angle neutron scattering (SANS)…

介观与纳米尺度物理 · 物理学 2012-07-11 Andreas Michels , Sergey Erokhin , Dmitry Berkov , Nataliya Gorn

The neutron electric dipole moment experiment at the Spallation Neutron Source (nEDM@SNS experiment) proposes to measure the nEDM using the spin-dependent capture cross section of neutrons on $^3$He. The critical dressing mode of this…

仪器与探测器 · 物理学 2022-06-08 Raymond Tat , Christopher Swank