Abstract's Details

Rapid-Scan X-Ray Fluorescence Imaging - New Opportunities not just for Old Objects
Abstract ID	SYMP-11
Presenter	Uwe Bergmann
Presentation Type	Symposium
Full Author List	U. Bergmann (1)
Affiliations	(1) Stanford Synchrotron Radiation Laboratory
Category	Materials Science
Abstract	Stimulated by the XRF imaging project of the Archimedes Palimpsest, we have developed a rapid scan system at SSRL, specialized to image large objects at high throughput. The system, which is currently operated at 10-100 mm resolution, is capable of creating an XRF image with 1 million pixels in less than one hour. Very recently this has led to several completely unrelated studies of large objects ranging from ancient manuscripts, to dinosaur fossils and human brain sections. We will show examples that show the excitement of these new opportunities. Also discussed will be limitations as well as possible future upgrades of the rapid scan XRF technique.
Footnotes
Funding Acknowledgement	SSRL is supported by the DOE Office of Basic Energy Sciences. The SSRL Structural Molecular Biology Program is supported by the NIH National Center for Research Resources, Biomedical Technology Program and by the DOE Office of Biological and Environmental Research.

Resonant and Non Resonant Inelastic X-ray Scattering
Abstract ID	W:SR-03
Presenter	Uwe Bergmann
Presentation Type	SR Intro Workshop
Full Author List	U. Bergmann (1)
Affiliations	(1) Stanford Synchrotron Radiation Laboratory
Category	Materials Science
Abstract	When x-rays interact with matter they are either absorbed or scattered. In the 10 keV range the scattering is predominantly elastic, i.e. with no change in energy. For that reason, in most scattering and diffraction experiments we only need to measure the intensities (and not energies) of the scattered x-rays. There is also a fraction of x-rays that looses some energy in the scattering process - the inelastic scattering. The inelastic scattering can be accompanied by various processes from creation or absorption of a phonon (in case of a very small energy loss) to the knocking out of a valence electron or even an inner-shell electron. All these processes can be used to gain detailed information of the dynamics or atomic and electronic structure of the scattering system. In addition, if the scattering takes place close to the threshold of absorption it can be either resonantly enhanced, or otherwise modified. Various examples of inelastic x-ray scattering in the hard x-ray region, their experimental realization and application to different scientific problems will be presented.
Footnotes
Funding Acknowledgement	SSRL is supported by the DOE Office of Basic Energy Sciences. The SSRL Structural Molecular Biology Program is supported by the NIH National Center for Research Resources, Biomedical Technology Program and by the DOE Office of Biological and Environmental Research.

Inelastic X-ray Scattering and Advanced Spectroscopy at SSRL
Abstract ID	UMTG:2-4
Presenter	Uwe Bergmann
Presentation Type	SSRL/LCLS
Full Author List	U. Bergmann (1)
Affiliations	(1) Stanford Synchrotron Radiation Laboratory
Category	Materials Science
Abstract	We are in the process of ramping up our efforts to carry out hard x-ray inelastic scattering and advanced spectroscopy at Beam Line 6-2. The techniques include non-resonant x-ray Raman scattering (XRS), resonant inelastic x-ray scattering (RIXS), x-ray emission spectroscopy (XES) and selective x-ray absorption spectroscopy (S-XAS). All of these techniques are bulk probes of local structure and chemistry and provide unique information complimentary to that of more traditional x-ray spectroscopy. A short overview of current research as well as present and future capabilities for users is presented.
Footnotes
Funding Acknowledgement	SSRL is supported by the DOE Office of Basic Energy Sciences. The SSRL Structural Molecular Biology Program is supported by the NIH National Center for Research Resources, Biomedical Technology Program and by the DOE Office of Biological and Environmental Research.

Rapid Scan X-ray Fluorescence Imaging of Large Objects at SSRL
Abstract ID	W:MICRO-02
Presenter	Uwe Bergmann
Presentation Type	Microfocusing Workshop
Full Author List	U. Bergmann (1)
Affiliations	(1) Stanford Synchrotron Radiation Laboratory
Category	Materials Science
Abstract	Stimulated by the XRF imaging project of the Archimedes Palimpsest, we have developed a rapid scan XRF imaging system at SSRL, currently employed at Beam Lines 6-2 and 10-2. The setup, which is used in the range of 10-100 mm resolution, is described and some examples of recent applications are shown. New XRF imaging opportunities for users and planned future upgrades are discussed.
Footnotes
Funding Acknowledgement	SSRL is supported by the DOE Office of Basic Energy Sciences. The SSRL Structural Molecular Biology Program is supported by the NIH National Center for Research Resources, Biomedical Technology Program and by the DOE Office of Biological and Environmental Research.