Journal ArticleDOI
Neutron imaging detector with 2 μm spatial resolution based on event reconstruction of neutron capture in gadolinium oxysulfide scintillators
TLDR
Efforts to improve the achievable spatial resolution in neutron imaging by centroiding the scintillation light from gadolinium oxysulfide scintillators are reported on, resulting in an event-based imaging detector with spatial resolution of about 2 μm.Abstract:
We report on efforts to improve the achievable spatial resolution in neutron imaging by centroiding the scintillation light from gadolinium oxysulfide scintillators. The current state-of-the-art neutron imaging spatial resolution is about 10 μm, and many applications of neutron imaging would benefit from at least an order of magnitude improvement in the spatial resolution. The detector scheme that we have developed magnifies the scintillation light from a gadolinium oxysulfide scintillator, calculates the center of mass of the scintillation event, resulting in an event-based imaging detector with spatial resolution of about 2 μm.read more
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Journal ArticleDOI
Using operando techniques to understand and design high performance and stable alkaline membrane fuel cells.
Xiong Peng,Devashish Kulkarni,Ying Huang,Travis J. Omasta,Benjamin Ng,Yiwei Zheng,Lianqin Wang,Jacob M. LaManna,Daniel S. Hussey,John R. Varcoe,Iryna V. Zenyuk,William E. Mustain +11 more
TL;DR: This study reports alkaline membrane fuel cells that can be operated continuously for over 1000 h at 600 mA cm−2 with voltage decay rate of only 32-μV h−1 – the best-reported durability to date.
Journal ArticleDOI
NeXT-Grenoble, the Neutron and X-ray tomograph in Grenoble
Alessandro Tengattini,Nicolas Lenoir,Edward Andò,Benjamin Giroud,Duncan Atkins,Jerôme Beaucour,Gioacchino Viggiani +6 more
TL;DR: NeXT-Grenoble as mentioned in this paper is a Neutron and X-ray Tomograph launched from the collaboration between the Universite Grenoble Alpes (UGA) and the Institut Laue Langevin (ILL).
Journal ArticleDOI
Neutron detection techniques from μeV to GeV
Antonino Pietropaolo,Massimo Angelone,Roberto Bedogni,N. Colonna,Alan J. Hurd,A. Khaplanov,F. Murtas,Mario Pillon,F. Piscitelli,E M Schooneveld,K. Zeitelhack +10 more
TL;DR: Neutron-based experimental techniques have been continuously improved, refined and strengthened since the pioneering experiments conducted by Clifford Shull and Bertram Brockhouse in the mid twentieth century as mentioned in this paper.
ReportDOI
2016 NIST Center for Neutron Research accomplishments and opportunities
Steven R Kline,Robert M Dimeo +1 more
Journal ArticleDOI
A high visibility Talbot-Lau neutron grating interferometer to investigate stress-induced magnetic degradation in electrical steel.
Tobias Neuwirth,Alexander Backs,Alex Gustschin,Simon Vogt,Franz Pfeiffer,Peter Böni,Michael Schulz +6 more
TL;DR: It is demonstrated that it is possible to affect the density of the magnetic domain walls by embossing and therefore to engineer the guiding of magnetic fields in electrical steel sheets and facilitate future studies of dynamic effects in electric steels and other systems.
References
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Journal ArticleDOI
Detection system for microimaging with neutrons
Scott Williams,André Hilger,Nikolay Kardjilov,Ingo Manke,Markus Strobl,P A Douissard,T Martin,Heinrich Riesemeier,John Banhart +8 more
TL;DR: In this article, a high-resolution detector setup for neutron imaging has been developed based on infinity-corrected optics with high light collection, combined with customized mounting hard- ware, achieving a resolution of 14.8 mm with a field of view of 6 mm�6 mm.
Journal ArticleDOI
Improving the Spatial Resolution of Neutron Imaging at Paul Scherrer Institut - The Neutron Microscope Project
Pavel Trtik,Jan Hovind,Christian Grünzweig,A. Bollhalder,Vincent Thominet,Christian David,Anders Kaestner,Eberhard Lehmann +7 more
TL;DR: In this article, the first prototype of the Neutron Microscope instrument at Paul ScherrerInstitut (PSI) has been presented, which is based on a very thin gadolinium oxysulfide scintillator screen and a magnifying optics.
Journal ArticleDOI
Accurate measurement of the through-plane water content of proton-exchange membranes using neutron radiography
Daniel S. Hussey,Dusan Spernjak,Adam Z. Weber,Rangachary Mukundan,Joseph D. Fairweather,Eric L. Brosha,John Davey,Jacob S. Spendelow,David L. Jacobson,Rodney L. Borup +9 more
TL;DR: In this article, the water sorption of proton exchange membranes (PEMs) was measured in situ using high-resolution neutron imaging in small-scale fuel cell test sections.
In Situ Fuel Cell Water Metrology at the NIST Neutron Imaging
TL;DR: The National Institute of Standards and Technology neutron imaging facility was designed to produce a high intensity, highly collimated neutron imaging beam to measure the water content of operating fuel cells as mentioned in this paper.
Journal ArticleDOI
In Situ Fuel Cell Water Metrology at the NIST Neutron Imaging Facility
TL;DR: The National Institute of Standards and Technology neutron imaging facility was designed to produce a high intensity, highly collimated neutron imaging beam to measure the water content of operating fuel cells.
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