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Displaying records 91 to 100 of 231 records.
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91. Measurement of equilibrium elemental vapor pressures using x-ray induced fluorescence
Topic: Physics
Published: 3/22/2011
Authors: John J Curry, Albert Henins, E. G Estupinan, W. P. Lapatovich, S. D. Shastri
Abstract: X-ray induced fluorescence is demonstrated as a fast and accurate method for measuring elemental vapor pressures over a wide range of pressures. As such, it may offer a preferable alternative to existing methods such as those based on effusion. ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=905739

92. Coupled quantized mechanical oscillators
Topic: Physics
Published: 3/10/2011
Authors: Kenton R. Brown, Christian Ospelkaus, Yves Colombe, Andrew C Wilson, Dietrich G Leibfried, David J Wineland
Abstract: The harmonic oscillator is one of the simplest physical systems but also one of the most fundamental. It is ubiquitous in nature, often serving as an approximation for a more complicated system or as a building block for larger models. Realizations o ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=907333

93. Effect of interactions on edge property measurements in magnetic multilayers
Topic: Physics
Published: 2/25/2011
Authors: Meng Zhu, Robert D McMichael
Abstract: This paper reports effects of inter-film interactions on static and dynamic magnetization behavior at film edges in magnetic trilayer stripe arrays under transverse applied fields. The trilayers consist of two magnetic films of Ni80Fe20, 10 nm and 2 ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=906468

94. Fe xvii X-ray Line Ratios for Accurate Astrophysical Plasma Diagnostics
Topic: Physics
Published: 2/20/2011
Authors: John D Gillaspy, E. H. Silver, L. Tedesco, Joseph N Tan, Joshua M Pomeroy, J M Laming, G.-X. Chen, T. Lin
Abstract: New laboratory measurements of the Ne-like Fe xvii x-ray lines in the 15-17 Angstrom range are presented, along with new theoretical predictions. These results establish consistency between independent laboratories and opens the door to trustworthy ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=903971

95. Spherical Reference Cavities for Ultra-Stable Lasers in Non-Laboratory Environments
Topic: Physics
Published: 2/14/2011
Authors: David R Leibrandt, Michael J. (Michael) Thorpe, Mark Notcutt, Robert Eugene Drullinger, Till P Rosenband, James C Bergquist
Abstract: We present an ultra-stable optical cavity design that is insensitive to both vibrations and orientation. The design is based on a spherical cavity spacer which is held rigidly at two points on a diameter of the sphere. Coupling of the support force ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=907288

96. The Infrared Spectra of C2H4+ and C2H3 Trapped in Solid Neon
Topic: Physics
Published: 2/14/2011
Authors: Marilyn E Jacox, Warren Elwin Thompson
Abstract: When a mixture of ethylene in a large excess of neon is codeposited at 4.3 K with a beam of neon atoms that have been excited in a microwave discharge, two groups of product absorptions appear in the infrared spectrum of the deposit. Similar studies ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=907297

97. Use of Phosphor Image Plates for Measuring Intensities in Vacuum Ultraviolet Spectra
Topic: Physics
Published: 1/28/2011
Authors: Gillian Nave, Craig J Sansonetti, Csilla Szabo, John J Curry, Darren Smillie
Abstract: We describe the use of phosphor image plates for recording spectra in the vacuum ultraviolet (VUV) and for determining accurate relative and absolute intensities. We investigated the spatial uniformity, noise level, linearity of the response to VUV ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=905893

98. Quantum information processing and metrology with trapped ions
Topic: Physics
Published: 1/25/2011
Authors: David J Wineland, Dietrich G Leibfried
Abstract: The use of trapped atomic ions in the field of quantum information processing is briefly reviewed. We summarize the basic mechanisms required for logic gates and the use of the gates in demonstrating simple algorithms. We discuss the potential of tra ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=906237

99. NIST Time and Frequency Bulletin
Series: NIST Interagency/Internal Report (NISTIR)
Topic: Physics
Published: 1/5/2011
Author: Petrina C Potts
Abstract: The Time and Frequency Bulletin provides informaiton on performance of time scales and a variety of broadcasts (and related information) to users of the NIST services.
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=907621

100. Femtotesla atomic magnetometry in a microfabricated vapor cell
Topic: Physics
Published: 12/20/2010
Authors: William C. Griffith, Svenja A Knappe, John E Kitching
Abstract: We describe an optically pumped ^u87^Rb magnetometer with 4.5 fT/Hz^u1/2^ sensitivity when operated in the spin-exchange relaxation free (SERF) regime. The magnetometer uses a microfabricated vapor cell, consisting of a cavity etched in a 1 mm thick ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=906531



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