6533b821fe1ef96bd127c058

RESEARCH PRODUCT

Using photoelectron emission microscopy with hard-X-rays

Giorgio MargaritondoY HwuY HwuW. L. TsaiGerhard H. FecherM. BertoloBarry P. LaiJung Ho Je

subject

X-ray spectroscopyX-ray absorption spectroscopyAbsorption spectroscopyExtended X-ray absorption fine structurebusiness.industryChemistrySynchrotron radiationSurfaces and InterfacesPhoton energyCondensed Matter PhysicsSurfaces Coatings and FilmsOpticsK-edgeX-ray photoelectron spectroscopyMaterials Chemistrybusiness

description

We present several successful test cases of using photoelectron emission microscopy (PEEM) for photon energy up to 25 keV. First, the full extended X-ray absorption fine structure analysis was implemented in areas as small as 100 mum(2) for transition-metal K edge absorption spectra and, therefore, demonstrated the feasibility of combining structural and chemical analysis with hard-X-ray absorption spectroscopy with high lateral resolution. We also show that PEEM can be used in a transmission (radiography) mode as an imaging detector for hard-X-ray, This approach again leads to the unprecedented 0.3 mum lateral resolution, particularly critical for the use of coherence-based phase contrast techniques in real time X-ray radiology. (C) 2001 Elsevier Science B.V. All rights reserved.

https://doi.org/10.1016/s0039-6028(01)00834-2