34-ID-E

Welcome to 34ID-E Wiki.

Overview 34ID-E is an undulator beamline dedicated to x-ray micro/nano-diffraction activities at the Advanced Photon Source (APS). The x-ray micro/nano-diffraction facility focuses x-ray beam to smaller than 0.5μm × 0.5μm for use in diffraction techniques using Kirkpatrick-Baez (K-B) mirrors. A specially designed micro-monochromator allows the selection of either polychromatic or monochromatic conditions with a fixed focal spot on the sample. Polychromatic x-ray microscopy utilizes Laue diffraction method to characterize crystalline structure in materials. By scanning a differential aperture, spatially resolved microdiffraction measurements can be made in all three dimensions with sub-μm resolution. Properties that can be measured include the local crystalline phase, local texture (orientation), and the local strains. 34ID-E is part of Sector 34ID, which has, after a canting upgrade in 2011, two independently-operated undulators placed in tandem along the ring. X-rays generated by them are horizontally separated. 34ID-E takes the inboard beam, while the outboard beam goes into 34ID-C for coherent diffraction imaging experiments. The development of the microbeam experimental capabilities were sponsored by the DOE Office of Science. Beam Parameters Source Type Undulator A, 3.3 cm period, 2.2 m Energy Range 7 - 30 keV Beam Size 300 - 500 nm (H) × 300 - 700 nm (V) Energy Resolution (ΔE/E) 1 × 10-4 Beam Flux (photons/sec) 1 × 1011 (white) 1 × 109 (mono) Contacts Wenjun Liu Ruqing Xu Jon Tischler (Group Leader)

Instruments 34ID Beamline Layout 34ID-E Experiment Station 34ID-E Detectors Miscellaneous Who built 34ID-E? Is the beamline more than 300 years old? See: History of Beamline 34ID-E 34ID-E Coordinate Systems

Beamline Control EPICS 34ID-E Control Interface Data Analysis Experimental data taken with our area detectors are saved in the NeXus format based on HDF-5. Analysis and visualization are mostly done with LaueGo, a package developed at 34ID-E based on IGOR Pro, runs on any PC or Mac. Data from depth-resolved measurements requires reconstruction, which is carried out by a multi-node Linux cluster at APS.

External Links

• 34ID-E Homepage
• 34ID-E real-time status page
• Surface Scattering and Microdiffraction Group
• Advanced Photon Source and Argonne National Laboratory
• APS Beamline Directory and Phone Numbers