September 2013

Conference Paper

Dynamically polarized sample at the Spallation Neutron Source

By:
Pierce, Joshua J; Crabb, Don; Tomanicek, S; Demarse, Neil A; Maxwell, J; Mulholland, J; Zhao, Jinkui
Page Number:
12088-12088
Volume:
251
Publication Date:
September 5, 2013
Conference Name:
International Conference on Neutron Scattering 2009
Conference Location:
Knoxville, Tennessee, United States of America
Conference Sponsor:
ORNL
View DOI Listing:
https://doi.org/10.1088/1742-6596/251/1/012088

Abstract

We report on the progress of the Dynamically Polarized Sample at the Spallation Neutron Source. The SNS DPS is a collaborative project with the University of Virginia constructed for the purpose of polarized neutron scattering and diffraction. The project aims at significantly enhancing the signal-to-noise ratio by utilizing the strong spin dependent scattering cross section of hydrogen. One of the areas that are expected to benefit from this project is neutron protein crystallography, where a 10 fold gain in diffraction intensity and 10 fold reduction in incoherent background are within reach. The first step of the SNS DPS project uses a simple one Kelvin refrigerator and a 5 Tesla magnet. Our final goal is to design and build optimized setups for instruments such as the neutron protein diffractometer at the SNS (MaNDi). A brief overview of the DPS project will be given.


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