Journal
REVIEW OF SCIENTIFIC INSTRUMENTS
Volume 76, Issue 6, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.1928191
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An x-ray beam with energy of 20.5 keV has been efficiently focused down to a spot size as small as 90 nm x 90 nm by a Kirkpatrick-Baez reflecting mirrors device. The first mirror, coated with a graded multilayer, plays both the role of vertical focusing device and monochromator, resulting in a very high flux (2x10(11) photons/s) and medium monochromaticity (Delta E/E similar to 10(-2)). Evaluation of the error contributions shows that the vertical focus is presently limited by the mirror figure errors, while the horizontal focus is limited by the horizontal extension of the x-ray source. With a gain in excess of a few million, this device opens up new possibilities in trace element nanoanalysis and fast projection microscopy. (c) 2005 American Institute of Physics.
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