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Compact Polycapillary-Based Microbeam X-Ray Fluorecence Analysis System for Remote Monitoring of Metal Contamination--X-Ray Optical Systems, Inc., 30 Corporate Circle, Albany, NY  12203; 518-464-3334

Dr. Ning Gao, Principal Investigator

Mr. David Usher, Business Official

DOE Grant No. DE-FG02-00ER83126

Amount:  $99,563

 

Characterization of modern materials requires analytical probes with superior detection limits and spatial resolution on a submicron scale.  We propose to develop a neutron focusing device which can significantly enhance analytical techniques used for the nondestructive investigation of surfaces, interfaces and volumes on such a scale.  Existing analytical techniques that will benefit from this development are neutron depth profiling, prompt gamma activation analysis, and neutron tomography.  Since low energy neutrons have optical properties analogous to light, we propose adapting replicated optics that are currently being used for focusing x-rays.  Replicated optics can provide benefit over polycapillary optics for focusing neutrons because the capture area is potentially much larger resulting in more neutrons at the focal spot.  We will design and fabricate an optic to be tested at the NIST Reactor (NBSR).  The replicated mirror shells will be electroformed from superpolished aluminum mirror mandrels.  The optics will be tested and characterized in our x-ray testing facility at XOS to select the best optic for testing at NIST.  The Phase II will be focused on designing and fabricating an assembly of nested mirror shells and testing the optic at NIST. Finally, the device will be made available commercially for implementing in neutron and x-ray analytical instruments.  The objective of the project is to show that a replicated optic assembly can collect and focus neutrons to a small spot and increase the collecting area compared to other types of neutron optics.  In the Phase I, a replicated optic shell will be designed for testing at the NIST neutron reactor facility. The mirror fabrication process will be accomplished by electroforming mirror shells from a superpolished aluminum mandrel.  The mirror shells will be tested and characterized at XOS x-ray testing facility to choose a mirror shell to be tested at the NIST reactor facility.

 

Commercial Applications and Other Benefits as described by the awardee:  Materials characterization techniques using neutrons will have improved detection limits and increased spatial resolution.  Technologies that would benefit are those involved with high performance materials such as semiconductors, polymer science, metallic alloys, coatings, and superconductors.