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Journal of Research (NIST JRES)

An Iterative Image Registration Algorithm by Optimizing Similarity Measurement

January 1, 2010

Author(s)

Wei Chu, Li Ma, Jun-Feng Song, Theodore V. Vorburger

Comparison of the NIST and PTB Standards for Air Kerma and Low-Energy X-rays

December 31, 2009

Author(s)

C M. O'Brien, L. Buermann

A comparison has been made of the air-kerma standards for low-energy x-rays at the National Institute of Standards and Technology (NIST) and the Physikalisch

Improved Contact X-Ray Microradiographic Method to Measure Mineral Density of Hard Dental Tissues

December 12, 2009

Author(s)

Burton D. Schmuck, Clifton M. Carey

Contact X-ray microradiography is the current gold standard for measuring mineral densities of partially demineralized tooth specimens. The X-ray sensitive film

New Spherial Gamma-ray and Neutron Emitting Sources for Testing of Radiation detection Instruments

November 30, 2009

Author(s)

Larry L. Lucas, Leticia S. Pibida

The National Institute of Standards and Technology (NIST) developed new gamma-ray and neutron emitting sources for testing radiation detection systems. These

Perturbations from Ducts on the Modes of Acoustic Thermometers

September 1, 2009

Author(s)

Keith A. Gillis, Michael R. Moldover, Hong Lin

We examine the perturbations of the modes of an acoustic thermometer caused by circular ducts used either for gas flow or as acoustic waveguides coupled to

First-Principles Calculation of the Third Virial Coefficient of Helium

September 1, 2009

Author(s)

Allan H. Harvey, Giovanni Garberoglio

Knowledge of the pair and three-body potential-energy surfaces of helium is now sufficient to allow calculation of the third density virial coefficient, C(T)

Uncertainty calculation for spectral-responsivity measurements

September 1, 2009

Author(s)

John H. Lehman, Chih-Ming Wang, Marla L. Dowell, Joshua A. Hadler

This paper discusses a procedure for measuring the absolute spectral responsivity of optical-fiber power meters and computation of the calibration uncertainty

A Method for Assigning Priorities to United States Measurement System (USMS) Needs: Nano-electrotechnologies

July 30, 2009

Author(s)

Herbert S. Bennett, Joan Pellegrino, Howard Andres

In 2006, the National Institute of Standards and Technology conducted an assessment of the U.S. measurement system (USMS), which encompasses all private and

Sources of Differences in On-Orbit Total Solar Irradiance Measurements

July 13, 2009

Author(s)

James J. Butler, R Barnes, B. Carol Johnson, Joseph P. Rice, Eric L. Shirley

There is a 5 W/m2 difference between current on-orbit Total Solar Irradiance (TSI) measurements. On 18-20 July 2005, a workshop was held at the National

Design of the DEMO Fusion Reactor Following ITER

July 1, 2009

Author(s)

Geoffrey B. McFadden, Paul R. Garabedian

Runs of the NSTAB equilibrium and stability code show there are many 3D solutions of the advanced tokamak problem subject to axially symmetric boundary

High Speed Quantum Key Distribution over Optical Fiber Network System

May 28, 2009

Author(s)

Xiao Tang, Lijun Ma, Alan Mink

NIST has developed a number of complete fiber-based high-speed quantum key distribution QKD)systems that includes an 850 nm QKD system for a local area network

Calibration of Speed Enforcement Down-the-Road Radars

May 1, 2009

Author(s)

John R. Jendzurski, Nicholas G. Paulter Jr.

We examine the measurement uncertainty associated with different methods of calibrating the ubiquitous down-the-road (DTR) radar used in speed enforcement

Method for the characterization of extreme-ultraviolet photoresist outgassing

May 1, 2009

Author(s)

Charles S. Tarrio

Outgassing from photoresists illuminated by extreme ultraviolet radiation can lead to degradation of the very expensive multilayer- coated optics in an extreme

Priorities for Standards and Measurements to Accelerate Innovations in Nano-electrotechnologies: Analysis of the NIST-Energetics-IEC-TC-113 Survey

March 3, 2009

Author(s)

Herbert S. Bennett, Joan Pellegrino, Howard Andres, Winnie Kwok

In 2008, the National Institute of Standards and Technology and Energetics Incorporated collaborated with the International Electrotechnical Commission

Measurement of Absorption and Scattering with an Integrating Sphere Detector: Application to Microalgae.

March 1, 2009

Author(s)

Adolfas K. Gaigalas, Hua-Jun He, Lili Wang

A commercial spectrometer with an integrating sphere (IS) detector was used to measure the absorbance of scattering and absorbing suspensions. Analysis of the

Adhesive bonding to dentin improved by polymerizable cyclodextrin derivatives

January 5, 2009

Author(s)

Rafael L. Bowen, Gary E. Schumacher, Anthony A. Giuseppetti, Kathleen M. Flynn, Charles M. Guttman, Clifton M. Carey

Objectives. Determine bonding characteristics of a hydrophilic monomer formulation containing PCDs (Polymerizable Cyclodextrin Derivatives). The hypothesis was

Synthesis of polymerizable cyclodextrin derivatives for use in adhesion-promoting monomer formulations

January 1, 2009

Author(s)

Rafael L. Bowen, Gary E. Schumacher, Clifton M. Carey, Anthony A. Giuseppetti, Kathleen M. Flynn, Charles M. Guttman

Objectives. Based on extensive literature research and molecular modelingresults, the hypothesis was that Beta-Cyclo Dextrin (BCD), containing 21 hydroxyl

Revised Standardized Equation for Hydrogen Gas Densities for Fuel Consumption Applications

November 1, 2008

Author(s)

Eric W. Lemmon, Marcia L. Huber, Jacob W. Leachman

An equation for the density of hydrogen gas has been developed that agrees with the current standard to within 0.01 % from 220 to 1000 K with pressures up to 70

Reflective optical chopper used in NIST high-power laser measurements

November 1, 2008

Author(s)

Xiaoyu X. Li, Thomas Scott, Christopher L. Cromer, Joshua A. Hadler

For the past ten years, NIST has used high-reflectivity, optical choppers as beamsplitters and attenuators when calibrating the absolute responsivity and

Standardization of 68Ge/68Ga using three liquid scintillation counting-based methods

October 31, 2008

Author(s)

Brian E. Zimmerman, Jeffrey T. Cessna, Ryan P. Fitzgerald

A solution containing 68Ge in equilibrium with its daughter, 68Ga, has been standardized for the first time at the National Institute of Standards and

Subscriptions to Online Journal of Physical and Chemical Reference Data Increase Greatly

October 16, 2008

Author(s)

G R. Dalton

In December 1999, NIST changed to a sole partnershipwith the American Institute of Physics (AIP) inpublishing the Journal of Physical and ChemicalReference Data

Uncertainty Due to Unaccounted Effects in Certification of Chemical Reference Materials

October 16, 2008

Author(s)

Raghu N. Kacker

A widely accepted approach to assure that the certified property of a chemical reference material is independent of the method of analysis is to analyze by two

Elastic-Stiffness Coefficients of Titanium Diboride

October 16, 2008

Author(s)

H M. Ledbetter, Sudook A. Kim, T Tanaka

Using acoustic-resonance spectroscopy, we measured the monocrystal elastic-stiffness coefficients, the Voigt Cij, of TiB 2. With hexagonal symmentry, TiB 2

Ultra-Small-Angle X-Ray Scattering (USAXS) Imaging of Human and Artificial Tissues

October 16, 2008

Author(s)

Lyle E. Levine

USAXS imaging is a high-contrast imaging techniquebeing developed by NIST researchers. It providesdirect images of the shapes and three-dimensionalarrangement

One-Dimensional Pencil Disorder Discovered for a Class of Intermetallic Compounds

October 16, 2008

Author(s)

Leonid A. Bendersky

viations of atoms from an average crystal structure caused by structural distortions, chemical ordering, or the presence of defects cause diffuse intensity in

Rapid Construction of Phase Diagrams by Magneto-Optical Imaging of Compositionally Spread Films Developed

October 16, 2008

Author(s)

Leonid A. Bendersky

Long-Term Carrier-Envelope Phase Conherence Achieved

October 16, 2008

Author(s)

S T. Cundiff

NIST researchers have reported a significant extension of the laser technology being developed for optical frequency metrology and optical atomic clocks. While

Uncertainties in Relative Spectral Data

October 16, 2008

Author(s)

J L. Gardner

Relative measurements of a series of data, either as a function of wavelength or angle, are common in radiometry. Normalization of these data at some reference

Radiation Physics and Chemistry: Radiation Physics for Medical Physicists [Book Review]

October 16, 2008

Author(s)

J H. Hubbell

The recently published textbook by E. B. Podgorsak Radiation Physics for Medical Physicists (Springer 2005) is reviewed, including a chapter-by chapter

Preface for Special Issue of the NIST Journal of Research Containing Manuscripts From the International Workshop on Applications of High Resolution Γ-Spectroscopy

October 16, 2008

Author(s)

R Deslattes, A Aprahamian

This special issue of the NIST Journal of Research contains papers from an international workshop on the Applications of High Precision Γ-Spectroscopy held on