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Author: daniel hussey
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1. A High Spatial Resolution Event Counting Neutron Detector Using Microchannel Plates and Cross Delay Line Readout
O H Siegmund, A Martin, W B Feller, Muhammad Arif, Daniel S Hussey, David L Jacobson
2. Capillary Pressure Measurements of the Gas Diffusion and Catalyst Layers in PEMFCs
T V Nguyen, G Lin, H Ohn, Daniel S Hussey, David L Jacobson, Muhammad Arif
3. Changing Optical Axis Due To Reactor Operation
Daniel S Hussey, David L Jacobson, Elias M Baltic
During reactor operation, the neutron flux distribution is modified by the reactor control
mechanisms, in the case of the reactor at the National Institute of Standards and Technology, this
is determined by the angular position of the Cd shim arm ...
4. Demonstration of Achromatic Cold-Neutron Microscope Utilizing Axisymmetric Focusing Mirrors.
Daniel S Hussey, D. Liu, M. V. Gubarev, D Ramsey, David L Jacobson, Muhammad Arif, D. E Moncton, B. Khaykovich
An achromatic cold-neutron microscope with magnification 4 is demonstrated. The image-forming optics is made of nested coaxial mirrors of full figures of revolution, so-called Wolter optics. The spatial resolution, field of view, and depth of focus a ...
5. Electrically‹stimulated gradients in water and counterion concentrations within electroactive polymer actuators
Jong Keun Park, Paul J. Jones, Chris Sahagun, Kirt Anthony Page, Daniel S Hussey, David L Jacobson, Sarah E Morgan, Robert B Moore
While ionic polymer metal composites (IPMCs) have been studied for more than 10 years, the specific actuation mechanism is still unclear. In this work, neutron imaging, applied potential (AP) and current sensing (CS) atomic force microscopy (AFM) me ...
6. Erratum: Precision Measurement of the n-He3 Incoherent Scattering Length Using Neutron Interferometry [Phys. Rev. Lett. 102, 200401 (2009)]
Michael G Huber, Muhammad Arif, T C Black, W.C. Chen, Thomas R. Gentile, Daniel S Hussey, Dmitry Pushin, Fred E. Wietfeldt
7. Feasibility of Coded Source Neutron Transmission Tomography
Kevin J Coakley, Daniel S Hussey
In a simulation experiment, we study the feasibility of coded source neutron transmission tomography for imaging water density in fuel cells at the NIST neutron imaging facility. In standard two-dimensional transmission tomography, one reconstructs a ...
8. Feasibility of Single-View Coded Source Neutron Transmission Tomography
K J Coakley, Daniel S Hussey
9. High-resolution neutron radiography of through-plane liquid water distribution in polymer electrolyte
membrane and gas diffusion layer
Daniel S Hussey, David L Jacobson, Richard Fu, Ugur Pasaogullari, Takeshi Shiomi, Yuichiro Tabuchi
We re-investigate our previously studied water transport phenomena under nonisothermal conditions by measuring the through-plane liquid water distribution across PEFC components with the state-of-the-art high-resolution neutron radiography. A correc ...
10. Improving quantitative neutron radiography through image restoration
Daniel S Hussey, Elias M Baltic, Kevin J Coakley, David L Jacobson
This in-situ study examines the water content in polymer electrolyte fuel cells (PEFCs) using neutron radiography. Various conditions such as different polytetraflouroethylene (PTFE) loadings in the gas diffusion media including the micro-porous laye ...