U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Search Publications

NIST Authors in Bold

Displaying 851 - 875 of 4633

Neutron Depth Profiling Technique for Studying Aging in Li-ion Batteries

February 15, 2011
Author(s)
Robert G. Downing
… During operation of a Li-ion cell, lithium diffuses in and out of the solid phase … Lithium, battery, neutron depth profiling, aging, Li-ion cell, C-rate … Neutron Depth Profiling Technique for Studying Aging in Li-ion Batteries …

New Insight into NBTI Transient Behavior Observed from Fast-GM Measurements

September 1, 2008
Author(s)
Jason P. Campbell, Kin P. Cheung, John S. Suehle
Fast-IDVG measurements have become an increasingly important tool to examine MOSFET transient degradation. The threshold voltage (VTH) extracted from fast-IDVG measurements is often used to infer the transient behavior of trapped charged in the gate

Trapped Ions and Laser Cooling, V

February 20, 2002
Author(s)
James C. Bergquist, John J. Bollinger, Wayne M. Itano, David J. Wineland
… Trapped Ions and Laser Cooling, V …

Cooling Methods in Ion Traps

January 1, 1995
Author(s)
Wayne M. Itano, James C. Bergquist, John J. Bollinger, David J. Wineland
… Cooling Methods in Ion Traps …

Quantum Measurements of Trapped Ions

January 1, 1993
Author(s)
Wayne M. Itano, James C. Bergquist, John J. Bollinger, J M. Gilligan, D J. Heinzen, F L. Moore, M G. Raizen, David J. Wineland
… Quantum Measurements of Trapped Ions …

Quantum Measurements of Trapped Ions

January 1, 1992
Author(s)
Wayne M. Itano, James C. Bergquist, John J. Bollinger, J M. Gilligan, D J. Heinzen, F L. Moore, M G. Raizen, David J. Wineland
… Quantum Measurements of Trapped Ions …

Trapped Ion Frequency Standards

January 1, 1991
Author(s)
David J. Wineland, Wayne M. Itano, James C. Bergquist, John J. Bollinger, D J. Heinzen, C H. Manney, F L. Moore, M G. Raizen, C S. Weimer
… Trapped Ion Frequency Standards …

Trapped Ions and Laser Cooling:

January 1, 1985
Author(s)
James C Bergquist, John J Bollinger, Wayne M Itano, David J Wineland
… Trapped Ions and Laser Cooling: …

Method for Evaluating Ion Mobility Spectrometers for Trace Detection of Fentanyl and Fentanyl- related Substances

November 8, 2019
Author(s)
Jennifer R. Verkouteren, Jeffrey Lawrence, R. Michael Verkouteren, Edward Sisco
… including law enforcement and border protection. Ion mobility spectrometry (IMS) technologies have a potential … cm2 V-1 s-1 for all 16 compounds indicate that product ion formation is the same across instrument platforms, and a … drug detection, fentanyl, IMS, ion mobility spectrometry, opioid …

Device-Level Jitter as a Probe of Ultrafast Traps in High-k MOSFETs

April 16, 2016
Author(s)
Dmitry Veksler, Jason Campbell, Kin Cheung, J. Zhong, H. Zhu, C. Zhao
… A methodology for evaluation of ultra-fast interfacial traps, using jitter measurements as a probe, is developed. … effect of PBTI stress on density of ultra-fast electron traps (with 500ps to 5ns characteristic capture/emission … may not be associated with growing density of interface traps, but is solely caused by a VT shift, which simply …

Quantifying "Softness" of Organic Coatings on Gold Nanoparticles using Correlated Small-Angle X-Ray and Neutron Scattering

December 9, 2015
Author(s)
Benjamin T. Diroll, Kathleen Weigandt, Davit Jishkariani, Matteo Cargnello, Ryan J. Murphy, Lawrence A. Hough, Christopher B. Murray, Bertrand Donnio
… components of hybrid nanomaterials. Using hydrophobic gold nanoparticles coated with several commercial and dendritic thiols, the size of the organic layer on the gold particles is shown to increase from 1.2 nm to 4.1 nm. A … Quantifying "Softness" of Organic Coatings on Gold Nanoparticles using Correlated Small-Angle X-Ray and …

Structure and Mechanical Properties of Al Thin Films Synthesized by Electron Beam Evaporation and Ion Beam Assisted Deposition

October 4, 2010
Author(s)
C E. Kalnas, David T. Read, J E. Jones, G S. Was
… The effects of an Ar ion assist beam during Al film growth by electron beam … nm were synthesized by electron beam evaporation (EBE) and ion beam assisted deposition (IBAD) at a nomalized energy … aluminum, ion bombardment, mechanical properties, microstructure … Al Thin Films Synthesized by Electron Beam Evaporation and Ion Beam Assisted Deposition …

Isotopic Metrology of Carbon Dioxide. II. Effects of Ion Source Materials, Conductance Emission, and Accelerating Voltage on Dual-Inlet Cross Contamination

June 1, 2003
Author(s)
R M. Verkouteren, S Assonov, D Klinedinst, W Brand
… isotope carbon dioxide measurements, made before and after ion source modification to gas isotope ratio mass … protocols were designed to explore the effects of ion surce material substitution, source conductance, inlet … times greater than 15 s, and different settings of ion source conductance resulted in delta- 13C shifts of about …

EBIT Observation of Low Charge State Ar Dielectronic Recombination Features Near the Unknown Faint X-Ray Feature Found in the Stacked Spectrum of Galaxy Clusters

February 20, 2019
Author(s)
A. Gall, A. Foster, R. Silwal, Joan M. Dreiling, A. Borovik, E. Kilgore, M. Ajello, John Gillaspy, Yuri Ralchenko, Endre Takacs
… of galaxy clusters (Bulbul et al. 2014), an electron beam ion trap (EBIT) was used to investigate resonant dielectronic … with AtomDB data and numerous Ar DR features from multiple ion charge-states in the energy region near the unidentified …

Electron Attachment Cross Sections and Negative Ion States of SF6

January 1, 2001
Author(s)
Loucas G. Christophorou, James K. Olthoff
… the energies and symmetry assignments of the negative ion states of SF 6 below approximately equal to}15 eV. … electron attachment, electron scattering, negative ion states, SF 6 , sulfur hexafluoride … Electron Attachment Cross Sections and Negative Ion States of SF6 …

Polyethyleneimine/polyethylene glycol-conjugated gold nanoparticles as nanoscale positive/negative controls in nanotoxicology: Testing in frog embryo teratogenesis assay-Xenopus and mammalian tissue culture system

March 15, 2023
Author(s)
Vytas Reipa, Alessandro Tona, Feng Yi, Bryant C. Nelson, David A. LaVan, Vincent A. Hackley, Tae Joon Cho
… Despite the great potential of using positively charged gold nanoparticles (AuNPs) in nanomedicine, no systematic … FETAX, Xenopus laevis, nanoparticles, gold, polyethyleneimine, PEI, polyethylene glycol, PEG, … Polyethyleneimine/polyethylene glycol-conjugated gold nanoparticles as nanoscale positive/negative controls in …

Observation of Persistent Flow of a Bose-Einstein Condensate in a Toroidal Trap

October 16, 2008
Author(s)
Changhyun Ryu, Mikkel Andersen, Pierre Clade, Vasant Natarajan, Kristian Helmerson, William D. Phillips
… the persistent flow of Bose-condensed atoms in a toroidal trap. The flow persists without decay for up to 10 s, limited only by experimental factors such as drift and trap lifetime. The quantized rotation was initiated by … to the atoms. Stable flow was only possible when the trap was multiply-connected, and was observed with a BEC …

Acoustic Emission Source Location in a Thick Steel Plate Using Lamb Modes

January 1, 2007
Author(s)
Marvin A. Hamstad
… below the top surface of a 25.4 mm (1 inch) thick steel plate with large transverse dimensions. The depths ranged … representing sources at various depths over the whole plate thickness were available. The modeled signals were … range and source depth. For sources located near the plate top surface, a Rayleigh wave was observed in the top …

Detection of individual spin species via frequency-modulated charge pumping

February 2, 2022
Author(s)
James Ashton, Mark Anders, Jason Ryan
… cycle, which strongly suggests a single Si/SiO2 interface trap. This demonstration in sub-micron MOSFETs, in which … we are able to reliably and easily measure single-trap charge pumping, which would otherwise be completely … leakage. This work provides a unique avenue for single-trap detection, which can be applied to more modern …

Formation of y+10 and y+11 Ions in the Collision-Induced Dissociation of Peptide Ions

December 8, 2011
Author(s)
Lisa E. Kilpatrick, Pedatsur Neta, Xiaoyu Yang, Yamil Simon, Yuxue Liang, Stephen E. Stein
… Tandem mass spectra of peptide ions, acquired in shotgun proteomic studies of selected … that cannot be assigned to the known fragmentation product ions (y, b, a, neutral losses). In many cases these persist … synthesized peptides, we report on a new class of fragment ions corresponding to y n-1 +10 and y n-1 +11, where n is the …
Displaying 851 - 875 of 4633
Was this page helpful?