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Displaying 1826 - 1850 of 17262

NIST Nanotechnology Environmental, Health, and Safety Research Program: 20092016

November 27, 2018
Author(s)
Debra L. Kaiser, Vincent A. Hackley
… included a suite of measurement tools—methods, protocols, standards (reference materials and documentary), instruments, … and led and contributed to the development of more than 20 standards and work items in the nanotechnology committees of the major standards development organizations (e.g., ASTM …

Calculations of Stopping Powers of 100 eV to 30 keV Electrons in 31 Elemental Solids

March 19, 2008
Author(s)
S Tanuma, Cedric J. Powell, David R. Penn
… (ELFs) derived from experimental optical data. The SP calculations were made for electron energies between 100 eV and 30 keV, and supplement our earlier SP calculations for 10 additional solids (Al, Si, Cr, Ni, Cu, Ge, Pd, Ag, Pt, and Au). Plots of SP versus atomic number for the group of 41 solids show clear …

Radiometer standard for absolute responsivity calibrations from 950 nm to 1650 nm with 0.05% (k = 2) uncertainty

June 2, 2009
Author(s)
George P. Eppeldauer, Howard W. Yoon, Yuqin Zong, Thomas C. Larason, Allan W. Smith, M. Racz
… A sphere-input transfer-standard detector has been developed to calibrate detectors … facility of NIST for absolute responsivity. The transfer-standard sphere-detector converts the radiant-power scale of the primary-standard cryogenic-radiometer into an irradiance responsivity …

Accurate measurement of the loss rate of cold atoms due to background gas collisions for the quantum-based cold atom vacuum standard

August 1, 2023
Author(s)
Daniel Barker, James A. Fedchak, Jacek Klos, Julia Scherschligt, Abrar Sheikh, Eite Tiesinga, Stephen Eckel
… flowmeter and dynamic expansion system, a vacuum metrology standard, is used to set a known number density for the … the thermalized loss rate coefficients with fractional standard uncertainties better than 1.6\% for $^7$Li and 2.7\% … vacuum pressure using cold atoms also serves as a primary standard for vacuum pressure, which we refer to as the …

Office of Law Enforcement Standards 2-Year Road Map, FY2009-2011

January 29, 2010
Author(s)
Mark D. Stolorow
… Road Map FY 2009 - 2011 for the Office of Law Enforcement Standards (OLES), Electronic and Electrical Engineering Laboratory (EEEL), National Institute of Standards and Technology. … success factors, mission, Office of Law Enforcement Standards, strategic goals, strategic plan. …

Copper Oxide Precipitates in NBS Standard Reference Material 482

December 1, 2002
Author(s)
Eric S. Windsor, R Carlton, John G. Gillen, Scott A. Wight, David S. Bright
… oxide has been detected in the copper containing alloys of Standard Reference Material (SRM) 482. This occurrence is … significant because it represents heterogeneity within a standard reference material that was certified to be … the impact they have upon the intended use of this standard for electron probe microanalysis. The heterogeneity …

Sustainable Manufacturing: Metrics, Standards, and Infrastructure - NIST Workshop Report

April 21, 2010
Author(s)
Sudarsan Rachuri, Jae H. Lee, Anantha Narayanan Narayanan, Prabir Sarkar, Kevin W. Lyons, Ram D. Sriram, Sharon J. Kemmerer
… of NIST Workshop on Sustainable Manufacturing: Metrics, Standards, and Infrastructure held at NIST, USA, on October … stakeholders to identify and discuss measurement and standards enablers that positively affect the social, … Cycle Assessment, Product Life Cycle, RoHS, REACH, ISO, Standards, NIST workshop …

Ultra-low Phase Noise Frequency Synthesis from Optical Atomic Frequency Standards

June 26, 2014
Author(s)
David A. Howe, Archita Hati, Craig W. Nelson
… with phase noise of new high-accuracy optical atomic standards. Optical atomic standards achieve extremely low frequency uncertainty in less … that ordinarily required days of averaging for laboratory standards to attain full accuracy has been shifted to a need …

Dual-Frequency-Bias Programmable Josephson Voltage Standard Circuit

March 14, 2025
Author(s)
Alain Rufenacht, Anna Fox, Raegan Johnson, Benjamin Scheck, Paul Dresselhaus, Samuel Benz
… This article presents a 2-V programmable Josephson voltage standard (PJVS) with dual microwave frequency inputs and … Dual-Frequency-Bias Programmable Josephson Voltage Standard Circuit …

Near-field Calibration of an Objective Spectrophotometer to NIST Radiometric Standards for the Creation and Maintenance of Standard Stars for Ground- and Space-Based Applications

September 13, 2012
Author(s)
John T. Woodward IV, Keith R. Lykke, Claire E. Cramer, John T. McGraw, Peter Zimmer, Daniel C. Zirzow, Susana Deustua, Dean Hines
… field a near-identical, removable 100mm diameter transfer standard telescope (CAL) is mounted physically parallel to AESoP. The CAL transfer standard is calibrated by NIST end-to-end, wavelength- … Atmospheric Transmission, Astronomical Extinction, Lidar, Standard Stars, Spectrophotometry, Radiometry, Stellar …

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 … the IUVA and its affiliates to examine the measurement and standards needs for UV-C pathogen abatement in the healthcare … of the Journal of Research of the National Institute of Standards and Technology, where full papers address the …

Re-calibration of the NIST SRM 2059 Master Standard using Traceable Atomic Force Microscope Metrology

October 17, 2008
Author(s)
Ronald G. Dixson, James E. Potzick, Ndubuisi G. Orji
… and coworkers developed the first chrome-on-glass (COG) Standard Reference Material (SRM) for linewidth metrology. … comparator mode. One of the masks was selected as a master standard and the features on this mask were calibrated using … we are performing new measurements on the SRM 2059 master standard. Recent results are in agreement with the prior …

2021 Cybersecurity and Privacy Annual Report

September 26, 2022
Author(s)
Patrick D. O'Reilly, Kristina Rigopoulos, Greg Witte, Larry Feldman
… the ongoing participation and development of international standards; the enhancement of privacy and security risk … Special Publication (NIST SP) - 800-220 …

2019 NIST/ITL Cybersecurity Program Annual Report

August 24, 2020
Author(s)
Patrick D. O'Reilly, Kristina G. Rigopoulos, Larry Feldman, Gregory A. Witte
… the ongoing participation and development of international standards; the enhancement of privacy and security risk … Special Publication (NIST SP) - 800-211 …
Displaying 1826 - 1850 of 17262
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