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Wide Angle Neutron Spin Echo Device

Award Information
Agency: Department of Energy
Branch: N/A
Contract: DE-SC0018453
Agency Tracking Number: 0000234521
Amount: $150,000.00
Phase: Phase I
Program: STTR
Solicitation Topic Code: 12a
Solicitation Number: DE-FOA-0001770
Solicitation Year: 2018
Award Year: 2018
Award Start Date (Proposal Award Date): 2018-04-09
Award End Date (Contract End Date): 2019-04-08
Small Business Information
2003 East Bayshore Road
Redwood City, CA 94063-4121
United States
DUNS: 103403523
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: No
Principal Investigator
 Jay Cremer
 (650) 474-2750
Business Contact
 Charles Gary
Phone: (650) 474-2750
Research Institution
 Indiana University
 Roger Pynn
509 E. 3rd Street
Bloomington, IN 47401-3654
United States

 (812) 855-2886
 Nonprofit College or University

The Neutron Spin Echo (NSE) method has provided unique information about the dynamics of soft materials, including confirmation of the de Gennes model of polymer reptation, and quantitative measurement of the bending constants of various membranes. In almost all cases these measurements have been made at small neutron scattering angles, where structural correlations with length scales between 10 nm and 100 nm dominate. However, existing NSE instrumentation is not well suited to studies, such as relaxation in spin glasses, solitary magnons in antiferromagnetic chains, the scale dependence of viscosity in ionic liquids, the diffusion of aromatic molecules in graphite, and short-range dynamics in comb- like polymers, where correlations over distances of 0.1 nm to 10 nm are important. To address the limitations of existing NSE instrumentation, the Institut Laue-Langevin (ILL) is building a major new instrument – WASP or Wide-Angle Spin Echo – that will be able to study motions of biological functional groups, diffusive dynamics, dynamics of molecular magnets, and dynamics of molecules confined in one or two dimensions. To achieve the same goals as WASP, we propose to design a compact device, based on high- temperature superconducting technology, which we developed for prior DOE-funded Phase I and II STTR projects. Our high-temperature superconducting Wollaston prisms have been used to build successful devices for Spin Echo Modulated Small Angle Scattering (SEMSANS), Larmor diffraction and phonon focusing.

* Information listed above is at the time of submission. *

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