Broad-band hard X-ray reflectors

Research output: Contribution to journalJournal article – Annual report year: 1997Researchpeer-review

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Interest in optics for hard X-ray broad-band application is growing. In this paper, we compare the hard X-ray (20-100 keV) reflectivity obtained with an energy-dispersive reflectometer, of a standard commercial gold thin-film with that of a 600 bilayer W/Si X-ray supermirror. The reflectivity of the multilayer is found to agree extraordinarily well with theory (assuming an interface roughness of 4.5 Angstrom), while the agreement for the gold film is less, The overall performance of the supermirror is superior to that of gold, extending the band of reflection at least a factor of 2.8 beyond that of the gold, Various other design options are discussed, and we conclude that continued interest in the X-ray supermirror for broad-band hard X-ray applications is warranted.
Original languageEnglish
JournalNuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms
Volume132
Issue number1
Pages (from-to)221-227
ISSN0168-583X
Publication statusPublished - 1997

    Research areas

  • broad-band hard X-ray filters, multilayers optical properties, X-ray mirrors
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