Desktop water window microscope using a double-stream gas puff target source
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A compact, desktop size, microscope, based on nitrogen double-stream gas puff target soft X-ray source, which emits radiation in water window spectral range at the wavelength of λ = 2.88 nm, is demonstrated. The microscope employs ellipsoidal grazing incidence condenser mirror for sample illumination and Fresnel zone plate objective. The microscope is capable of capturing magnified images of objects with 60 nm spatial resolution and exposure time as low as a few seconds. Details about the source and the microscope as well as a few examples of different applications are presented and discussed.
KeywordsZone Plate Nitrogen Plasma Carbon Membrane High Photon Flux Water Window
This work was supported by the National Centre for Science, award number DEC-2011/03/D/ST2/00296, the National Centre for Research and Development, Lider programme, award # LIDER/004/410/L-4/12/NCBR/2013 and by the Ministry of Science and Higher Education of Poland, the European Commission’s Seventh Framework Program (LASERLAB-EUROPE III—grant agreement 284464 and COST Action MP0601) European Economic Area (EEA) grants. We thank Dr. Martin Regehly from greateyes GmbH., Germany, for the possibility to use the GE 2048 2048 BI camera during the measurements.
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