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Multiplexing Focusing Analyzer for Efficient Stress-Strain Measurements

Award Information
Agency: Department of Energy
Branch: N/A
Contract: DE-SC0020555
Agency Tracking Number: 0000256978
Amount: $1,100,000.00
Phase: Phase II
Program: STTR
Solicitation Topic Code: 18c
Solicitation Number: DE-FOA-0002380
Solicitation Year: 2021
Award Year: 2021
Award Start Date (Proposal Award Date): 2021-05-03
Award End Date (Contract End Date): 2023-05-02
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) 283-3350
Business Contact
 Charles Gary
Phone: (650) 283-3350
Research Institution
 Massachusetts Institute of Technology
77 Massachusetts Avenue Building NE18-901
Cambridge, MA 02139-4307
United States

 Nonprofit College or University

Although thermal and cold neutron scattering is widely used and is critical for success in many areas of materials science and engineering, relatively low neutron fluxes severely limit applications of not only laboratory neutrons generators, but also large national neutron facilities. State-of-the-art thermal and cold neutron sources are large expensive national facilities, which serve diverse community of scientific and industrial users. The constant need to improve the instruments performance, stems from the fact that neutron methods are gaining in popularity, and becoming more and more powerful, while new neutron sources are not being constructed to keep pace with the developments and needs of the scientific community. Small research reactors at universities and National Labs, and laboratory-based neutron generators, are necessary not only for education and training, but also when samples cannot be transported to other facilities. However, the standard neutron techniques, which were developed for high-flux facilities, require much higher efficiencies to be used effectively with the low fluxes of small sources. Thus, the efficient use of neutron sources, such as with our proposed analyzer, is important for the progress and broader use of these neutron techniques. We propose to design and demonstrate novel diffractive optical device, which will enable very efficient residual stress neutron diffractometers. The proposed device will be a multi-foil analyzer, where each foil is constructed of focusing bent single crystals of Si. Such device will enable polychromatic residual stress neutron diffraction. At large national facilities, such as at Oak Ridge National Laboratory, these analyzers would enable very fast measurements for determining residual stress tensors, raster large samples or screen multiple samples. The outcome of this project would be the demonstration of commercial devices, novel neutron optical components, which could be utilized to improve the performance of existing instruments or build novel neutron scattering instruments at DOE neutron facilities and commercial laboratory neutron sources. These new devices will widen the scope of research conducted using neutrons and enable measurements not feasible at present.

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

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