Journal of Research (NIST JRES)

Disinfection of Respirators with Ultraviolet Radiation

March 25, 2022

Author(s)

Dianne L. Poster, Matthew Hardwick, C Cameron Miller, Michael A. Riley, W. W. Shanaka I. Rodrigo, Andras E. Vladar, John D. Wright, Christopher D. Zangmeister, Clarence Zarobila, Jeremy Starkweather, John Wynne, Jason Yilzarde

Data for interpreting virus inactivation on N95 face filtering respirators (FFRs) by ultraviolet (UV) radiation are important in developing UV strategies for

Calorimetry in Computed Tomography Beams

March 10, 2022

Author(s)

Heather H. Chen-Mayer, Ronald Tosh, Fred B. Bateman, Paul Bergstrom, Brian E. Zimmerman

A portable calorimeter for direct realization of absorbed dose in medical computed tomography (CT) procedures was constructed and tested in a positron emission

The NIST Vacuum Double-Crystal Spectrometer: A Tool for SI-Traceable Measurement of X-Ray Emission Spectra

March 9, 2022

Author(s)

Csilla Szabo-Foster, James Cline, Albert Henins, Lawrence T. Hudson, Marcus Mendenhall

The NIST Vacuum Double-Crystal Spectrometer (VDCS) has been modernized and is now capable of recording reference-free wavelength-dispersive spectra in the 2 keV

Porosity, Powder X-Ray Diffraction Patterns, Skeletal Density, and Thermal Stability of NIST Zeolitic Reference Materials RM 8850, RM 8851, and RM 8852

March 1, 2022

Author(s)

Huong Giang Nguyen, Ran Tao, Roger D. van Zee

This paper reports the powder X-ray diffraction patterns, argon isotherms at 87 K, Brunauer–Emmett–Teller surface areas, pore size distributions, pore volumes

Toward a New Primary Standardization of Radionuclide Massic Activity Using Microcalorimetry and Quantitative Milligram-Scale Samples

February 24, 2022

Author(s)

Ryan P. Fitzgerald, Bradley Alpert, Dan Becker, Denis E. Bergeron, Richard Essex, Kelsey Morgan, Svetlana Nour, Galen O'Neil, Dan Schmidt, Gordon A. Shaw, Daniel Swetz, R. Michael Verkouteren, Daikang Yan

We present a new paradigm for the primary standardization of radionuclide activity per mass of solution (Bq/g). Two key enabling capabilities are 4π decay

Acceptance Testing Methodology for the Production of Standard Reference Material 2806: Medium Test Dust in Hydraulic Fluid

February 24, 2022

Author(s)

Robert A. Fletcher, James J. Filliben, Nicholas Ritchie

Standard Reference Material (SRM) 2806: Medium Test Dust in Hydraulic Fluid represents a series of reference materials certified by the National Institute of

Understanding Deformation Behavior in Uniaxial Tensile Tests of Steel Specimens at Varying Strain Rates

February 22, 2022

Author(s)

Dilip K. Banerjee, Mark Iadicola, Adam Abel Creuziger

Uniaxial tensile tests are routinely conducted to obtain stress-strain data for forming applications. It is important to understand the deformation behavior of

Development and Evaluation of Bluetooth Low-Energy Device for Electronic Encounter Metrics

January 20, 2022

Author(s)

Katy Keenan, Joe Aumentado, Harold Booth, Kimberly Briggman, Mikail Kraft-Molleda, Michele Martin, Rene Peralta, Angela Robinson, Krister Shalm, Michelle Stephens, Emily Townsend, Sae Woo Nam

The coronavirus disease 2019 (COVID-19) pandemic led to the need for tracking of physical contacts and potential exposure to disease. Traditional contact

ASME B89.4.23 Performance Evaluation Tests and Geometry Errors in X-Ray Computed Tomography Systems

January 20, 2022

Author(s)

Bala Muralikrishnan, Meghan Shilling, Vincent Lee

A documentary standard produced by the American Society of Mechanical Engineers (ASME) for performance evaluation of industrial X-ray computed tomography (XCT)

Optical Fiber Time Delay Comparison between NIST and LAMETRO

January 10, 2022

Author(s)

Tasshi Dennis, Johnny Jimenez

We describe the results of a bilateral measurement comparison of optical fiber time delay between the National Institute of Standards and Technology (NIST, USA)

Type-B uncertainty analysis of gravity-based determinations of triaxial-accelerometer properties by simulation of measurement errors

January 4, 2022

Author(s)

Jon Geist, Michael Gaitan

We simulate the effect of gimbal-alignment errors and rotational step-size errors on measurements of the sensitivity matrix and intrinsic properties of a

AbsorbanceQ: An App for Generating Absorbance Images from Brightfield Images

January 4, 2022

Author(s)

Stephen Zimmerman, Carl Simon Jr., Greta Babakhanova

The AbsorbanceQ app converts brightfield microscope images into absorbance images that can be analyzed and compared across different operators, microscopes and

Seabird Tissue Archival and Monitoring Project (STAMP) Data from 1999-2010

December 17, 2021

Author(s)

Nathan Mahynski, Jared Ragland, Stacy Schuur, Rebecca Pugh, Vincent K. Shen

The multi-entity, long-term Seabird Tissue Archival and Monitoring Project (STAMP) has collected eggs from various avian species throughout the North Pacific

Digitization of Adsorption Isotherms from "The Thermodynamics and Hysteresis of Adsorption"

December 16, 2021

Author(s)

Daniel Siderius

Sorption isotherms collected from tables in the seminal dissertation, "The Thermodynamics and Hysteresis of Adsorption" by A. J. Brown, have been digitized and

The NMR Spectral Measurement Database: A System for Organizing and Accessing NMR Spectra of Therapeutic Proteins

December 16, 2021

Author(s)

Niksa Blonder, Frank Delaglio

The Nuclear Magnetic Resonance Spectral Measurement Database (NMR-SMDB) was developed for the purpose of organizing and searching NMR spectral data of protein

Estimation of a Minimum Allowable Structural Strength Based on Uncertainty in Material Test Data

December 7, 2021

Author(s)

Jeffrey Fong, N. Alan Heckert, James J. Filliben, Pedro V. Marcal, Stephen W. Freiman

Three types of uncertainties exist in the estimation of the minimum fracture strength of a full-scale component or structure size. The first, to be called the

Precise Numerical Differentiation of Thermodynamic Functions with Multicomplex Variables

November 29, 2021

Author(s)

Ian Bell, Ulrich Deiters

The multicomplex finite-step method for numerical differentiation is an extension of the popular Squire--Trapp method, which uses complex arithmetics to compute

Mean Differential Continuous Pulse Method for Accurate Optical Measurements of Light-Emitting Diodes and Laser Diodes

November 23, 2021

Author(s)

Yuqin Zong, Jeff Hulett, Nomasa Koide, Yoshiki Yamaji, C Cameron Miller

Limited sources exist for the application of germicidal ultraviolet (GUV) radiation. Ultraviolet light-emitting diodes (UV-LEDs) have significantly improved in

Ratio-Based Pulse Shape Discrimination: Analytic Results for Gaussian and Poisson Noise Models

November 9, 2021

Author(s)

Kevin J. Coakley

In experiments in a range of fields including fast neutron spectroscopy and astroparticle physics, one can discriminate events of interest from background

A Review of Models for Heat Transfer in Steel and Concrete Members During Fire

October 22, 2021

Author(s)

Dilip K. Banerjee

Structural design for fire is conceptually similar to structural design conducted under ambient temperature conditions. Such design requires an establishment of

A Summary of Heat-Flux Sensor Calibration Data

October 12, 2021

Author(s)

A V. Murthy, Gerald T. Fraser, D P. DeWitt

This paper presents a statistical evaluation of the responsivity data on a number of heat-flux sensors, calibrated using an electrical substitution radiometer

An Analysis of an Inventory of Community Resilience Frameworks

September 29, 2021

Author(s)

Jarrod Loerzel, Maria Dillard

This NIST Data Article documents the development and analysis of an inventory of 56 community resilience frameworks. This article represents the second of three

X-ray Computed Tomography Instrument Performance Evaluation, Part III: Sensitivity to Detector Geometry and Rotation Stage Errors at Different Magnifications

September 29, 2021

Author(s)

Prashanth Jaganmohan, Bala Muralikrishnan, Meghan Shilling, Ed Morse

With steadily increasing use in dimensional metrology applications, especially for delicate parts and those with complex internal features, X-ray computed

Translator from Extended SysML to Physical Interaction and Signal Flow Simulation Platforms, Version 1.1

September 22, 2021

Author(s)

Raphael Barbau, Conrad Bock, Mehdi Dadfarnia

The design of complex systems often requires engineers from multiple disciplines (mechanical, electrical, production, and so on) to communicate with each other

Dynamic Plasticity Model for Rapidly Heated 1045 Steel Up to 1000 °C

August 27, 2021

Author(s)

Steven Mates, Shengyen Li

The National Institute of Standards and Technology (NIST) developed an experimental technique to measure the dynamic flow stress of metals under rapid heating

Ultraviolet Radiation Technologies and Healthcare Associated Infections: Standards and Metrology Needs

August 20, 2021

Author(s)

Dianne L. Poster, C Cameron Miller, Richard Martinello, Norman Horn, Michael T. Postek, Troy Cowan, Yaw S. Obeng, John J. Kasianowicz

The National Institute of Standards and Technology (NIST) hosted an international workshop on ultraviolet-C (UV-C) disinfection technologies on January 14 – 15

Development of the Advanced Encryption Standard

August 16, 2021

Author(s)

Miles E. Smid, James Foti

Strong cryptographic algorithms are essential for the protection of stored and transmitted data throughout the world. This publication discusses the development

Measurement Uncertainty of Surface Temperature Distributions for Laser Powder Bed Fusion Processes

August 10, 2021

Author(s)

David Deisenroth, Sergey Mekhontsev, Brandon Lane, Leonard M. Hanssen, Ivan Zhirnov, Vladimir Khromchenko, Steven Grantham, Daniel Cardenas-Garcia, Alkan Donmez

This paper describes advances in measuring the characteristic spatial distribution of surface temperature and emissivity during laser-metal interaction under

Atomic Model Structure of the NIST Monoclonal Antibody (NISTmAb) Reference Material

July 15, 2021

Author(s)

Christina Bergonzo, David Travis Gallagher

As monoclonal antibodies have become a vital resource in medicine, knowledge of their complex molecular structures has increased in importance. Thousands of

Optical Power Scale Realization by Laser Calorimeter after 45 Years of Operation

June 28, 2021

Author(s)

Matthew Spidell, Anna Vaskuri

To calibrate laser power and energy meters, the National Institute of Standards and Technology (NIST) uses several detector-based realizations of the scale for