Novel neutron focusing mirrors for compact neutron sources

B. Khaykovich, M. V. Gubarev, V. E. Zavlin, R. Katz, G. Resta, D. Liu, L. Robertson, L. Crow, B. D. Ramsey, D. E. Moncton

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

3 Scopus citations

Abstract

We demonstrated neutron beam focusing and neutron imaging using axisymmetric optics, based on pairs of confocal ellipsoid and hyperboloid mirrors. Such systems, known as Wolter mirrors, are commonly used in x-ray telescopes. A system containing four nested Ni mirror pairs was implemented and tested by focusing a polychromatic neutron beam at the MIT Reactor and conducting an imaging experiment at HFIR. The major advantage of the Wolter mirrors is the possibility of nesting for large angular collection. Using nesting, the relatively short optics can be made comparable to focusing guides in flux collection capabilities. We discuss how such optics can be used as polychromatic lenses to improve the performance of small-angle-scattering, imaging, and other instruments at compact neutron sources.

Original languageEnglish
Title of host publicationProceedings of the 1st Two Meetings of the Union of Compact Accelerator-Driven Neutron Sources
EditorsDavid Baxter
PublisherElsevier B.V.
Pages299-308
Number of pages10
ISBN (Electronic)9781627487429
DOIs
StatePublished - 2012
Event1st Two Meetings of the Union of Compact Accelerator-Driven Neutron Sources - Bloomington, United States
Duration: Jul 5 2011Jul 8 2011

Publication series

NamePhysics Procedia
Volume26
ISSN (Print)1875-3884
ISSN (Electronic)1875-3892

Conference

Conference1st Two Meetings of the Union of Compact Accelerator-Driven Neutron Sources
Country/TerritoryUnited States
CityBloomington
Period07/5/1107/8/11

Funding

Research supported by the U.S. Department of Energy, Office of Basic Energy Sciences, under Awards # DE-FG02-09ER46556 and DE-FG02-09ER46557 (Wolter optics studies) and by National Science Foundation under Award # DMR-0526754 (construction of Neutron optics test station and diffractometer at MIT.) Research at Oak Ridge National Laboratory's Spallation Neutron Source was sponsored by the Scientific User Facilities Division, Office of Basic Energy Sciences, U. S. Department of Energy.

FundersFunder number
Office of Basic Energy SciencesDE-FG02-09ER46557, DE-FG02-09ER46556
Scientific User Facilities Division
U. S. Department of Energy
National Science FoundationDMR-0526754
U.S. Department of Energy
Directorate for Mathematical and Physical Sciences0526754
Oak Ridge National Laboratory

    Keywords

    • neutron focusing
    • neutron imaging
    • neutron mirrors
    • neutron optics
    • small-angle neutron scattering

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