Early Results from an Aberration-Corrected JEOL 2200FS STEM/TEM 
at Oak Ridge National Laboratory

The resolution-limiting aberrations of round electromagnetic lenses can now be successfully overcome via the use of multipole element “aberration correctors.” The installation and performance of a hexapole-based corrector (CEOS GmbH) integrated on the probe-forming side of a JEOL 2200FS FEG STEM/TEM is described. For the resolution of the microscope not to be severely compromised by its environment, a new, specially designed building at Oak Ridge National Laboratory has been built. The Advanced Microscopy Laboratory was designed with the goal of providing a suitable location for aberration-corrected electron microscopes. Construction methods and performance of the building are discussed in the context of the performance of the microscope. Initial performance of the microscope on relevant specimens and modifications made to eliminate resolution-limiting conditions are also discussed.

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Shared Research Equipment at OAK Ridge National Laboratory

Microscopy and Microanalysis ◽

10.1017/s1431927600022479 ◽

1998 ◽

Vol 4 (S2) ◽

pp. 470-471

Author(s):

N. D. Evans ◽

E. A. Kenik ◽

M. K. Miller

Keyword(s):

Semiconductor Device ◽

National Laboratory ◽

Atomic Scale ◽

Fiscal Year ◽

Probe Field ◽

Oak Ridge ◽

Wide Range ◽

Oak Ridge National Laboratory ◽

Electron Microscopes ◽

Research Equipment

The Shared Research Equipment (SHaRE) User Facility and Program at Oak Ridge National Laboratory (ORNL) provides microanalytical facilities for studies within the materials sciences. Available instrumentation includes advanced analytical electron microscopes, atom probe field ion microscopes, and nanoindentation facilities. Through SHaRE, researchers from U.S. universities, industries, and government laboratories may collaborate with Facility scientists to perform research not possible at their home institutions. International collaborations are also possible. Most SHaRE projects seek correlations at the microscopic or atomic scale between structure and properties in a wide range of metallic, ceramic, and other structural materials. Typical research projects include studies of magnetic materials, advanced alloys, catalysts, semiconductor device materials, high Tc superconductors, and surface-modified polymers. Projects usually involve one or more external researchers visiting the SHaRE Facility for up to three weeks during the fiscal year (October 1 - September 30). Project approval is based upon the scientific excellence and relevance of proposed collaborative research.

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The Bio-SANS instrument at the High Flux Isotope Reactor of Oak Ridge National Laboratory

Journal of Applied Crystallography ◽

10.1107/s1600576714011285 ◽

2014 ◽

Vol 47 (4) ◽

pp. 1238-1246 ◽

Cited By ~ 51

Author(s):

William T. Heller ◽

Volker S. Urban ◽

Gary W. Lynn ◽

Kevin L. Weiss ◽

Hugh M. O'Neill ◽

...

Keyword(s):

Neutron Scattering ◽

National Laboratory ◽

Isotopic Labeling ◽

High Flux ◽

Oak Ridge ◽

Oak Ridge National Laboratory ◽

User Facility ◽

Technical Specifications ◽

And Performance ◽

Sans Instrument

Small-angle neutron scattering (SANS) is a powerful tool for characterizing complex disordered materials, including biological materials. The Bio-SANS instrument of the High Flux Isotope Reactor of Oak Ridge National Laboratory (ORNL) is a high-flux low-background SANS instrument that is, uniquely among SANS instruments, dedicated to serving the needs of the structural biology and biomaterials communities as an open-access user facility. Here, the technical specifications and performance of the Bio-SANS are presented. Sample environments developed to address the needs of the user program of the instrument are also presented. Further, the isotopic labeling and sample preparation capabilities available in the Bio-Deuteration Laboratory for users of the Bio-SANS and other neutron scattering instruments at ORNL are described. Finally, a brief survey of research performed using the Bio-SANS is presented, which demonstrates the breadth of the research that the instrument's user community engages in.

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