U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Search Publications

NIST Authors in Bold

Displaying 41801 - 41825 of 74090

Tuning P-Wave Interactions in an Ultracold Fermi Gas of Atoms

February 1, 2003
Author(s)
C A. Regal, J L. Ticknor, J L. Bohn, D S. Jin
We have measured a p-wave Feshbach resonance in a single-component, ultracold Fermi gas of 40K atoms. We have used this resonance to enhance the normally suppressed p-wave collision cross-section to values larger than thebackground s-wave cross-section

Ultracold Collision Properties of Metastable Alkaline-Earth Atoms

February 1, 2003
Author(s)
A Derevianko, S. G. Porsev, Svetlana A. Kotochigova, Eite Tiesinga, Paul S. Julienne
Ultra-cold collisions of spin-polarized Mg, Ca, and Sr in the metastable 3P2 excited state are investigated. We show the existence of purely long-range potentials, determine the scattering length, and estimate the collisional loss rate as a function of

Uncertainties in Interpolated Spectral Data

February 1, 2003
Author(s)
J L. Gardner
Interpolation is often used to improve the accuracy of integrals over spectral data convolved with various response functions or power distributions. Formulae are developed for propagation of uncertainties through the interpolation process, specifically

X-Ray Absorption Spectroscopy to Probe Interfacial Issues in Photolithography

February 1, 2003
Author(s)
Joseph~undefined~undefined~undefined~undefined~undefined Lenhart, Daniel A. Fischer, S Sambasivan, Eric K. Lin, Ronald L. Jones, Christopher Soles, Wen-Li Wu, D L. Goldfarb, M Angelopoulos
Control of the shape, critical dimension (CD), and roughness is critical for the fabrication of sub 100 nm features, where the CD and roughness budget are approaching the molecular dimension of the resist polymers1. Here we utilize near edge X-ray

Automated Security Self-Evaluation Tool Technical Documentation, Version 1.03

January 31, 2003
Author(s)
Mark McLarnon, Marianne M. Swanson
The Automated Security Self-Evaluation Tool (ASSET) automates the process of completing a system self-assessment. ASSET will assist organizations in completing the self-assessment questionnaire contained in NIST Special Publication (Special Publication)

Estimating the Work in Integer Partitioning

January 31, 2003
Author(s)
April Andreas, Isabel M. Beichl
For a given set of numbers, the integer partitioning problem is to divide the numbers into two groups, so that the sums of the numbers in each group differ by the smallest amount possible. In a balanced perfect partition, the sums differ by only zero or

Measuring Resin Temperature During Extrusion Using a Fluorescence Technique

January 30, 2003
Author(s)
Anthony J. Bur, S C. Roth, D W. Baugh, K A. Koppi, M A. Spalding, J Gunderson, W C. Buzanowski
We have used a temperature sensitive fluorescent dye, doped into polycarbonate, to monitor the true resin temperature during extrusion processing. The fluorescent dye, perylene, was doped into the polycarbonate at very low concentration. We apply this

NIST CFIT: Testing Disk Imaging Tools

January 27, 2003
Author(s)
James R. Lyle
There is a critical need in the law enforcement community to ensure the reliability of computer forensic tools. A capability is required to ensure that forensic software tools consistently produce accurate and objective test results. The goal of the

Experimental Demonstration of a Technique to Generate Arbitrary Quantum Superposition States of a Harmonically Bound Spin-1/2 Particle

January 24, 2003
Author(s)
A Ben-kish, B M. Demarco, V Meyer, Mary A. Rowe, Joseph W. Britton, Wayne M. Itano, Branislav M. Jelenkovic, Christopher Langer, Dietrich Leibfried, Till P. Rosenband, David J. Wineland
Using a single, harmonically trapped 9Be+ ion, we experimentally demonstrate a technique for generation of arbitrary states of a two-level particle confined by a harmonic potential. Rather than engineering a single Hamiltonian that evolves the system to a

SCUBA-2: a large format submillimeter camera on the James Clerk Maxwell Telescope

January 20, 2003
Author(s)
Wayne Holland, William Duncan, Kent D. Irwin, Anthony Walton, Peter Ade, Ian Robson
SCUBA-2 is a second generation, wide-field submillimeter camera under development for the James Clerk Maxwell Telescope. With over 12,000 pixels, in two arrays, SCUBA-2 will map the submillimeter sky 1000 times faster than the current SCUBA instrument to

Mechanical Behavior of Caulks and Sealants

January 15, 2003
Author(s)
Donald L. Hunston, Christopher C. White
ulks and Sealants are important examples of consumer products where performance depends critically on rheological properties. This work describes the development of a testing and modeling procedure to characterize the basic mechanical properties of such
Displaying 41801 - 41825 of 74090
Was this page helpful?