scholarly journals A new two-dimensional scintillation detector system for small-angle neutron scattering experiments

2001 ◽  
Vol 48 (4) ◽  
pp. 1114-1117 ◽  
Author(s):  
G. Kemmerling ◽  
R. Engels ◽  
N. Bussmann ◽  
U. Clemens ◽  
M. Heiderich ◽  
...  
Keyword(s):  
Neutron Scattering ◽  
Small Angle ◽  
Scintillation Detector ◽  
Small Angle Neutron Scattering ◽  
Detector System ◽  
Two Dimensional

scholarly journals New opportunities provided by modernized small-angle neutron scattering two-detector system instrument (YuMO)

2011 ◽  
Vol 291 ◽  
pp. 012013 ◽  
Author(s):  
A I Kuklin ◽  
D V Soloviov ◽  
A V Rogachev ◽  
P K Utrobin ◽  
Yu S Kovalev ◽  
...  
Keyword(s):  
Neutron Scattering ◽  
Small Angle ◽  
Small Angle Neutron Scattering ◽  
Detector System

Scientific Reviews: Two-Detector System for Small-Angle Neutron Scattering Instrument

Neutron News ◽  
2005 ◽  
Vol 16 (3) ◽  
pp. 16-18 ◽  
Author(s):  
A. I. Kuklin ◽  
A. Kh. Islamov ◽  
V. I. Gordeliy
Keyword(s):  
Neutron Scattering ◽  
Small Angle ◽  
Small Angle Neutron Scattering ◽  
Detector System

scholarly journals Polarized small-angle neutron scattering study of two-dimensional spatially ordered systems of nickel nanowires

2007 ◽  
Vol 40 (s1) ◽  
pp. s532-s536 ◽  
Author(s):  
N. A. Grigoryeva ◽  
S. V. Grigoriev ◽  
H. Eckerlebe ◽  
A. A. Eliseev ◽  
A. V. Lukashin ◽  
...  
Keyword(s):  
Neutron Scattering ◽  
Small Angle ◽  
Small Angle Neutron Scattering ◽  
Two Dimensional ◽  
Nickel Nanowires ◽  
Scattering Study ◽  
Neutron Scattering Study

Upgrade of the 32 m small-angle neutron scattering instrument SANS-U

2005 ◽  
Vol 38 (6) ◽  
pp. 1035-1037 ◽  
Author(s):  
Satoshi Okabe ◽  
Michihiro Nagao ◽  
Takeshi Karino ◽  
Satoshi Watanabe ◽  
Tomohiro Adachi ◽  
...  
Keyword(s):  
Neutron Scattering ◽  
Small Angle ◽  
Small Angle Neutron Scattering ◽  
Dynamic Range ◽  
Two Dimensional ◽  
Cooperative Research ◽  
Solid State Physics ◽  
Area Detector ◽  
The University ◽  
User Friendly

The small-angle neutron scattering instrument, SANS-U, owned by the Institute for Solid State Physics, The University of Tokyo, has been upgraded. The SANS-U is a 32 m SANS instrument installed in 1991 at the guide hall of the JRR-3M research reactor of the Japan Atomic Energy Research Institute, and has been serving for inter-university cooperative research use since 1993. The major upgrades include (i) replacement of the two-dimensional area detector by a multi-wire type position-sensitive proportional counter, (ii) renewal of the operating system from a VAX and sequencers to an integrated PXI system controlled byLabVIEW-RTsoftware, (iii) a focusing collimation system, and (iv) a variety of accessory equipment. These upgrades provide a wide dynamic range of neutron counting, user-friendly operation and real-time circular averaging of two-dimensional data.

scholarly journals Multiple small angle neutron scattering: A new two-dimensional ultrasmall angle neutron scattering technique

2007 ◽  
Vol 91 (20) ◽  
pp. 203504 ◽  
Author(s):  
C. Grünzweig ◽  
T. Hils ◽  
S. Mühlbauer ◽  
M. Ay ◽  
K. Lorenz ◽  
...  
Keyword(s):  
Neutron Scattering ◽  
Small Angle ◽  
Small Angle Neutron Scattering ◽  
Two Dimensional ◽  
Scattering Technique

scholarly journals Small-angle neutron scattering correlation functions of bulk magnetic materials

2015 ◽  
Vol 48 (5) ◽  
pp. 1437-1450 ◽  
Author(s):  
Denis Mettus ◽  
Andreas Michels
Keyword(s):  
Magnetic Field ◽  
Correlation Function ◽  
Magnetic Anisotropy ◽  
Neutron Scattering ◽  
Saturation Magnetization ◽  
Applied Magnetic Field ◽  
Small Angle ◽  
Small Angle Neutron Scattering ◽  
Anisotropy Field ◽  
Two Dimensional

On the basis of the continuum theory of micromagnetics, the correlation function of the spin-misalignment small-angle neutron scattering cross section of bulk ferromagnets (e.g.elemental polycrystalline ferromagnets, soft and hard magnetic nanocomposites, nanoporous ferromagnets, or magnetic steels) is computed. For such materials, the spin disorder which is related to spatial variations in the saturation magnetization and magnetic anisotropy field results in strong spin-misalignment scattering dΣM/dΩ along the forward direction. When the applied magnetic field is perpendicular to the incoming neutron beam, the characteristics of dΣM/dΩ (e.g.the angular anisotropy on a two-dimensional detector or the asymptotic power-law exponent) are determined by the ratio of magnetic anisotropy field strengthHpto the jump ΔMin the saturation magnetization at internal interfaces. Here, the corresponding one- and two-dimensional real-space correlations are analyzed as a function of applied magnetic field, the ratioHp/ΔM, the single-particle form factor and the particle volume fraction. Finally, the theoretical results for the correlation function are compared with experimental data on nanocrystalline cobalt and nickel.

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