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Journals

Stabilization and Frequency Measurement of the I₂-Stabilized Nd: YAG Laser

April 1, 1999

Author(s)

D S. Hall, L -. Ma, M S. Taubman, B Tiemann, F L. Hong, O Pfister, J Ye

We report improved stabilization results for and progress toward a more accurate frequency measurement of the 532 nm iodine-stabilized system based on a...

A Portable, Pulsed-Molecular-Beam, Fourier-Transform Microwave Spectrometer Designed for Chemical Analysis

April 1, 1999

Author(s)

R D. Suenram, J U. Grabow, A Zuban, I Leonov

Harmony et al. recently published some design specifications for a smaller version of a Fourier transform microwave (FTMW) spectrometer. In this work they used...

Absolute Frequency Atlas of Molecular I₂ Lines at 532 NM

April 1, 1999

Author(s)

Jun Ye, Lennart Robertsson, S Picard, L -. Ma, John L. Hall

With the aid of two iodine spectrometers, we report for the first time the measurement of the hyperfine splittings of the P(54) 32-0 and R(57)32-0 transitions...

Ion Energy Distributions and Sheath Voltages in Radio-Frequency-Biased, Inductively-Coupled, High-Density Plasma Reactor

April 1, 1999

Author(s)

Mark A. Sobolewski, James K. Olthoff, Yicheng Wang

Ion energy distributions were measured at a grounded surface in an inductively-coupled, high-density plasma reactor for pure argon, argon-helium, and argon...

Improving Kinematic Touch Trigger Probe Performance

April 1, 1999

Author(s)

Steven D. Phillips, William T. Estler

Kinematic touch trigger probes are widely used on CMMs. This article gives CMM users advice on how to minimize the systematic errors associated with this class...

Noise Averaging and Measurement Resolution (or A Little Noise is a Good Thing)

April 1, 1999

Author(s)

James E. Potzick

When a continuous quantity is measured with a digital instrument or digitized for further processing, a measurement uncertainty component is incurred from...

Forward

April 1, 1999

Author(s)

Norman B. Belecki

The National Institute of Standards and Technology (NIST) hosted the 1998 Conference on Precision Electromagnetic Measurements (CPEM'98) in the Washington...

Guest Editorial

April 1, 1999

Author(s)

Barry A. Bell

The National Institute of Standards and Technology hosted the 1998 Conference on Precision Electromagnetic Measurements (CPEM >98) in the Washington Renaissance...

Polycapillary X-Ray Optic Spectral Gain and Transmission

April 1, 1999

Author(s)

J E. Gormley, Eric B. Steel, Q Xiao, Terrence J. Jach

Polycapillary x-ray optics are gaining increased attention as their transmission characteristics and manufacturing difficulties are better understood. This...

Thermodynamics of the Lipase-Catalyzed Esterification of 1-Dodecanoic Acid With (-)-Menthol in Organic Solvents

April 1, 1999

Author(s)

Yadu D. Tewari, Michele M. Schantz, David J. Vanderah

The thermodynamics of the lipase catalyzed stereospecific esterification of 1-dodecanoic acid with (-)-menthol in seven organic solvents have been investigated...

Multiconductor Transmission-Line Characterization: Representations, Approximations, and Accuracy

April 1, 1999

Author(s)

Dylan F. Williams, Christopher L. Holloway, Janet E. Rogers

This paper investigates a measurement method that characterizes lossy printed multiconductor transmission lines, its accuracy, the choice of measurement...

Domain Formation near the Reorientation Transition in Perpendicularly Magnetized, Ultrathin Fe/Ni Bilayer Flims

April 1, 1999

Author(s)

C S. Arnold, David P. Pappas, D Venus

Programmable 1 V DC Voltage Standard

April 1, 1999

Author(s)

Charles J. Burroughs, Samuel Benz, Clark A. Hamilton, Todd E. Harvey

We have developed a Josephson voltage standard that produces intrinsically stable voltages that are programmable of 32 768 SNS (superconductor-normal...

Deployment of a Compact, Transportable, Fully Automated Josephson Voltage Standard

April 1, 1999

Author(s)

Stuward L. Kupferman, Clark A. Hamilton

A compact, transportable, Josephson voltage standard, first reported at CPEM96, has now been field tested and has had ten months of use as a primary standard by...

AC and DC Bipolar Voltage Source Using Quantized Pulses

April 1, 1999

Author(s)

Samuel Benz, Clark A. Hamilton, Charles J. Burroughs, Todd E. Harvey

Ion Dynamics Near Charged Electrodes with Excluded Volume Effect

April 1, 1999

Author(s)

James R. Baker-Jarvis, Billy F. Riddle, Aaron Young

Generation of Different UHMWPE Particle Shape by Wear Through Surface Texturing

April 1, 1999

Author(s)

H. W. Fang, M C. Shen, U Cho, John A. Tesk, A Christou, Stephen M. Hsu

Ultra-high molecular weight polyethylene (UHMWPE) wear particles in replaced joints have been linked to biochemical reactions that eventually lead to loosening...

Pendular States of Highly Vibrationally Excited Molecules

April 1, 1999

Author(s)

J Ortigoso, Gerald T. Fraser, Brooks H. Pate

The behavior of coherent field-induced hybrids of field-free rotor states (pendular states) is studied in energy regions where intramolecular vibrational energy...

An Enriched ⁴⁰K Source for Fermionic Atom Studies

April 1, 1999

Author(s)

B. L. DeMarco, H Rohner, Deborah S. Jin

We have developed a novel, enriched potassium source for use in trapping and cooling of the fermionic isotope 40K. The source is clean, easily controllable, and...

Frequency Comparison of ¹²⁷I₂-Stabilized Nd: YAG Laser

April 1, 1999

Author(s)

F L. Hong, K Ishikawa, J Yoda, J Ye, L -. Ma, John L. Hall

A first international comparison of I 2-stabilized Nd: YAG lasers has been made between the National Research Laboratory of Metrology (NRLM), Tsukuba, Japan...

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...

Do We Need a Roadmap?

April 1, 1999

Author(s)

Herbert S. Bennett, Joseph G. Pellegrino, D. L. Rode, Thomas J. Shaffner, David G. Seiler

A Survey of Construction Metrology Options for the AEC Industry

April 1, 1999

Author(s)

C Lindfors, P C. Chang, William C. Stone

Techniques for measuring distances, relative heights, and angles have improved significantly during the last decades. Some of these techniques can be used in...

Oxygen Binding to alpha-Subunits in High-Salt Crystals of T-State Haemoglobin

April 1, 1999

Author(s)

G B. Vasquez, X Ji, I Pechik, C Fronticelli, G L. Gilliland

Fabrication of High-Value Standard Resistors

April 1, 1999

Author(s)

Ronald F. Dziuba, Dean G. Jarrett, L. L. Scott, Andrew J. Secula

The National Institute of Standards and Technology (NIST) has fabricated stable, transportable 10 MΩ} and 1 GΩ} standard resistors for use in an international...

High-Speed Characterization of Submicrometer Giant Magnetoresistive Devices

April 1, 1999

Author(s)

Stephen E. Russek, J O. Oti, Shehzaad F. Kaka, E Y. Chen

Determination of the Magnetic Damping Constant in NiFe Films

April 1, 1999

Author(s)

G M. Sandler, H N. Bertram, Thomas J. Silva, T. M. Crawford

Study of NiFe/Al/Al₂O₃ Magnetic Tunnel Junction Interfaces Using Second-Harmonic Magneto-Optic Kerr Effect

April 1, 1999

Author(s)

Stephen E. Russek, T. M. Crawford, Thomas J. Silva

Kinetic-energy Distributions of Positive and Negative Ions in Townsend Discharges in Oxygen

April 1, 1999

Author(s)

MVVS. Rao, Richard J. Van Brunt, James K. Olthoff

Translational flux-energy distributions of positive and negative ions have been measured at high electric field-to-gas density ratios (E/N) up to 40 x 10 -18 V...

Comparison of Two Josephson Array Voltage Standard Systems Using a Set of Zener References

April 1, 1999

Author(s)

Yi-hua D. Tang, Richard L. Steiner, June E. Sims

Two Josephson Array Voltage Standard Systems using different calibration algorithms are operated at the National Institute of Standards and Technology (NIST). A...

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