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Displaying 2401 - 2425 of 2503

The New NIST Atomic Spectra Database (1999)

March 1, 1999
Author(s)
Daniel E. Kelleher, William C. Martin, Wolfgang L. Wiese, J Sugar, Jeffrey R. Fuhr, Karen J. Olsen, Arlene Musgrove, Peter J. Mohr, Joseph Reader, G R. Dalton
The new NIST Atomic Spectra Database (ASD) interactive Web site is accessible via: http://atm.nist.gov/asd. The new version covers a much wider range of atomic and ionic transitions and energy levels than earlier versions, and all data are integrated. ASD

Conference Report

February 1, 1999
Author(s)
John J. Bollinger, J Fajans
A summary of the Workshop on Non-neutral Plasmas, held in Boulder, Colorado, July 29 through August 1, 1997, is given. This workshop provided an opportunity for the exchange of results and scientific information among the diverse areas of plasma physics

Physics Laboratory Technical Activities 1998

January 1, 1999
Author(s)
K B. Gebbie
This report summarizes research projects measurement method developments, calibration and testing services, and data evaluation activities that were carried out during calendar year 1998 in the NIST Physics Laboratory. These activities are in the areas of

Ultrafast photodetectors with near-unity quantum efficiency

January 1, 1999
Author(s)
G. Ulu, M. Gvkkavas, M. S. {Umlat}nl{umlat}, N. Biyikli, E. {Omlat}zbay, Richard Mirin, David H. Christensen
We designed, fabricated and characterized Al xGa 1-xAs/GaAs p-i-n resonant cavity enhanced (RCE) photodetectors with near-unit quantum efficiency. The peak wavelength is in the 780-830 nm region and post-process adjustable by recessing the top surface

Use of Kirkpatrick-Baez Multilayer Optics for X-Ring Fluorescence Imaging

July 1, 1998
Author(s)
A S. Bakulin, S M. Durbin, C Liu, J Erdmann, A T. Macrander, Terrence J. Jach
We discuss the possibilities for using Kirkpatrick-Baez (K-B) multilayer elements to directly image the fluorescence distribution from a specimen under x-ray illumination. X-ray fluorescence would be collected by K-B elements close in contrast to the use

Critical Compilation of Atomic Wavelength and Energy Level Data

April 1, 1998
Author(s)
William C. Martin, J Sugar, Arlene Musgrove, Craig J. Sansonetti, Jean E. Sansonetti, Edward B. Saloman, V I. Azarov, Alexander Kramida, A N. Ryabtsev, T Shirai
The Atomic Energy Levels Data Center at the National Institute of Standards and Technology (NIST), in cooperation with other laboratories indicated above, is critically evaluating and compiling energy levels, wavelengths, and energy level classifications
Displaying 2401 - 2425 of 2503
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