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Displaying 76 - 100 of 115

Selected Programs at the New SURF III Electron Storage Ring

June 1, 2000
Author(s)
Mitchell L. Furst, Uwe Arp, G P. Cauchon, A D. Hamilton, L R. Hughey, Thomas B. Lucatorto, Charles S. Tarrio
The conversion of the electron storage ring at NIST (the National Institute of Standards and Technology) to SURF III (the Synchrotron Ultraviolet Radiation Facility) has resulted in a significant improvement to the azimuthal uniformity of magnetic field as

Tomography of Integrated Circuit Interconnect With an Electromigration Void

May 1, 2000
Author(s)
Zachary H. Levine, A R. Kalukin, M Kuhn, S P. Frigo, I McNulty, C C. Retsch, Y Wang, Uwe Arp, Thomas B. Lucatorto, Bruce D. Ravel, Charles S. Tarrio
An integrated circuit interconnect was subject to accelerated-life conditions to induce an electromigration void. The silicon substrate was removed, leaving only the interconnect encased test structure encased in silica. We imaged the sample with 1750 eV

Smoothing of Mirror Substrates by Thin-Film Deposition

September 8, 1999
Author(s)
E Spiller, S Baker, E Parra, Charles S. Tarrio
Superpolished optical flats with high spatial frequency roughness below 0.1 nm have been commercially available for years. However, it is much more difficult to obtain figured optics of similar quality. We have obtained and tested the finish of figured

Methods to Remove Distortion Artifacts in Scanned Projections

July 1, 1999
Author(s)
A R. Kalukin, Zachary H. Levine, Charles S. Tarrio, S P. Frigo, I McNulty, S S. Wang, C C. Retsch, M Kuhn, B Winn
Atrifacts induced by distortions which sometimes occur in two-dimensional projection images can appear in the resulting tomographic reconstructions. We describe a procedure for analyzing, correcting and removing experimental atrifacts, and hence reducing

Instrumental Aspects of X-Ray Microbeams in the Range Above 1 keV

April 1, 1999
Author(s)
P Dhez, P Chevallier, Thomas B. Lucatorto, Charles Tarrio
X rays were discovered by Roentgen in 1895, just over 100 years ago. Early investigations by Roentgen himself indicated that prisms, lenses, and mirrors were seemingly ineffective for deflecting and focusing x rays. However, the magical ability to look

Photon Physics Home Page

May 1, 1998
Author(s)
Uwe Arp, Charles S. Tarrio
The principal research activities of the Photon Physics Group are in the far ultraviolet and extreme ultraviolet [EUV] physics. In particular, we are currently pursing research activities in EUV optics, the development of x-ray microscopies, and