scholarly journals Time-of-flight grazing incidence small angle neutron scattering on Gd nanowires

2009 ◽  
Vol 167 (1) ◽  
pp. 73-79 ◽  
Author(s):  
W. Kreuzpaintner ◽  
J.-F. Moulin ◽  
D. Lott ◽  
R. Kampmann ◽  
M. Haese-Seiller ◽  
...  
Keyword(s):  
Neutron Scattering ◽  
Small Angle ◽  
Small Angle Neutron Scattering ◽  
Time Of Flight ◽  
Grazing Incidence

Morphology determination of defect-rich diblock copolymer films with time-of-flight grazing-incidence small-angle neutron scattering

2014 ◽  
Vol 47 (4) ◽  
pp. 1228-1237 ◽  
Author(s):  
Peter Müller-Buschbaum ◽  
Gunar Kaune ◽  
Martin Haese-Seiller ◽  
Jean-Francois Moulin
Keyword(s):  
Neutron Scattering ◽  
Diblock Copolymer ◽  
Small Angle ◽  
Small Angle Neutron Scattering ◽  
Microphase Separation ◽  
Time Of Flight ◽  
Surface Region ◽  
Grazing Incidence ◽  
Near Surface ◽  
Oriented Parallel

The complex nanomorphology of a defect-rich deuterated poly(styrene-block-methyl methacrylate), P(S-b-MMAd), diblock copolymer film is determined with a combination of grazing-incidence small-angle neutron scattering (GISANS) and time-of-flight (TOF) mode. TOF-GISANS enables the simultaneous performance of several GISANS measurements that differ in wavelength. The resulting set of GISANS data covers different ranges of the scattering vector and has different scattering depths. Thus surface-sensitive and bulk-sensitive measurements can be performed simultaneously. The P(S-b-MMAd) film exhibits a lamellar microphase separation structure, which because of the defects is arranged into small, randomly oriented grains, composed of four–five lamellar repetitions. In the near-surface region, the lamellar structure is oriented parallel to the substrate, which explains the smooth surface found with atomic force microscopy.

Time of flight grazing incidence small angle neutron scattering

2009 ◽  
Vol 167 (1) ◽  
pp. 107-112 ◽  
Author(s):  
P. Müller-Buschbaum ◽  
E. Metwalli ◽  
J.-F. Moulin ◽  
V. Kudryashov ◽  
M. Haese-Seiller ◽  
...  
Keyword(s):  
Neutron Scattering ◽  
Small Angle ◽  
Small Angle Neutron Scattering ◽  
Time Of Flight ◽  
Grazing Incidence

Structural investigation of thin diblock copolymer films using time-of-flight grazing-incidence small-angle neutron scattering

2010 ◽  
Vol 44 (1) ◽  
pp. 84-92 ◽  
Author(s):  
Ezzeldin Metwalli ◽  
Jean-Francois Moulin ◽  
Markus Rauscher ◽  
Gunar Kaune ◽  
Matthias A. Ruderer ◽  
...  
Keyword(s):  
Neutron Scattering ◽  
Polymer Film ◽  
Diblock Copolymer ◽  
Small Angle ◽  
Small Angle Neutron Scattering ◽  
Microphase Separation ◽  
Time Of Flight ◽  
Grazing Incidence ◽  
High Energy ◽  
Copolymer Films

The depth-dependent morphology of the microphase separation structure in thin block copolymer films is examined using non-destructive time-of-flight grazing-incidence small-angle neutron scattering. The structure of a cylinder-forming diblock copolymer, polystyrene(deuterated)-block-polyisoprene, in contact with either a low- or a high-energy substrate surface is investigated. A systematic identification of the components of the polymer film at different depths is achieved by utilizing the material characteristic Yoneda peak. For the polymer film attached to the low-surface-energy aminosilane-coated substrate, a morphology transition from lamellar at the substrate–polymer interface,viaperforated lamellar in the film bulk, to an ill-defined structure at the polymer–air interface is observed. This phase transition along the film normal is due to the competition between the surface-induced morphological changes and the stable cylindrical bulk morphology of the diblock copolymer. In contrast, on the high-energy surface no pronounced ordering is found for the applied conditions.

Self organization of magnetic nanoparticles: A polarized grazing incidence small angle neutron scattering and grazing incidence small angle x-ray scattering study

2011 ◽  
Vol 110 (10) ◽  
pp. 102207 ◽  
Author(s):  
Katharina Theis-Bröhl ◽  
Durgamadhab Mishra ◽  
Boris P. Toperverg ◽  
Hartmut Zabel ◽  
Britta Vogel ◽  
...  
Keyword(s):  
Magnetic Nanoparticles ◽  
Neutron Scattering ◽  
Small Angle ◽  
Small Angle Neutron Scattering ◽  
Grazing Incidence ◽  
Self Organization ◽  
X Ray ◽  
X Ray Scattering ◽  
Scattering Study ◽  
Ray Scattering

Measurement and calculation of resolution of time-of-flight small-angle neutron scattering

1986 ◽  
Vol 19 (5) ◽  
pp. 311-319 ◽  
Author(s):  
D. F. R. Mildner ◽  
J. M. Carpenter ◽  
D. L. Worcester
Keyword(s):  
Neutron Scattering ◽  
Small Angle ◽  
Small Angle Neutron Scattering ◽  
Time Of Flight

Conceptual design of the grazing-incidence focusing small-angle neutron scattering (gif-SANS) instrument at CPHS

2021 ◽  
pp. 1-5
Author(s):  
Huarui Wu ◽  
Weihang Hong ◽  
Yao Zhang ◽  
Pulin Bai ◽  
Wenbo Mo ◽  
...  
Keyword(s):  
Neutron Scattering ◽  
Conceptual Design ◽  
Small Angle ◽  
Small Angle Neutron Scattering ◽  
High Performance ◽  
Grazing Incidence ◽  
The Other ◽  
Tsinghua University ◽  
Neutron Sources ◽  
Sans Instrument

Developing small-angle neutron scattering techniques at compact accelerator-driven neutron sources (CANS) is of great importance for expanding the user community and advancing CANS capability. At the Compact Pulsed Hadron Source (CPHS) at Tsinghua University, neutron-focusing mirrors are under intensive research to address the challenge. A grazing-incidence focusing SANS (gif-SANS) project is initialized. It employs a nested supermirror assembly with a large collecting area to achieve ⩾ 10 5 n/s neutron intensity at Q min ⩽ 0.007 Å − 1 . It will equip two detectors, one being a 3He detector for normal Q-range measurements, and the other being a high-resolution detector for extending the Q min down to 10 − 3 Å − 1 . In this work, we present the conceptual design of the gif-SANS at CPHS. Such a scheme is conducive to enable high-performance SANS measurements at CANS.

scholarly journals Data reduction for time-of-flight small-angle neutron scattering with virtual neutrons

2017 ◽  
Vol 45 (5) ◽  
pp. 541-557 ◽  
Author(s):  
Rong Du ◽  
Haolai Tian ◽  
Taisen Zuo ◽  
Ming Tang ◽  
Lili Yan ◽  
...  
Keyword(s):  
Neutron Scattering ◽  
Small Angle ◽  
Data Reduction ◽  
Small Angle Neutron Scattering ◽  
Time Of Flight
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