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Displaying 626 - 650 of 3757

Pattern Transfer of Hydrogen Depassivation Lithography Patterns into Silicon with Atomically Traceable Placement and Size Control

July 17, 2014
Author(s)
Josh Ballard, Stephen McDonnell, Don Dick, Maia Bischof, Joseph Fu, D Jaeger, James Owen , w Owen, Justin Alexander, Udi Fuchs, Pradeep Namboodiri, Kai Li, John Randall, Robert Wallace, Yves Chabal, Richard Reidy, Richard M. Silver
… for top-down atomic control over nanofabrication. First, hydrogen depassivation lithography is performed on hydrogen terminated Si(100) using a scanning tunneling … Pattern Transfer of Hydrogen Depassivation Lithography Patterns into Silicon with …

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 …

Complete collision data set for electrons scattering on molecular hydrogen and itsisotopologues: I. Fully vibrationally-resolved electronic excitation of H 2 (X 1 ? g + ).

January 1, 2021
Author(s)
Liam H. Scarlett, D Fursa, Mark C. Zammit, I Bray, Yuri Ralchenko, Kayla D. Davie
… for electron-impact electronic excitation of molecular hydrogen suitable for implementation in collisional-radiative … excitation, molecular hydrogen, convergent close coupling, analytic fits, … collision data set for electrons scattering on molecular hydrogen and itsisotopologues: I. Fully …

Quantitative secondary ion mass spectrometry imaging of self-assembled monolayer films for electron beam dose mapping in the environmental scanning electron microscope

July 1, 1998
Author(s)
John G. Gillen, Scott A. Wight, David S. Bright, T M. Herne
… at different levels of electron dose. Microbeam secondary ion mass spectrometry [SIMS] using Cs+ bombardment is then used to image the F- secondary ion signal from these areas. From the reduction in F- … curve is generated that allows conversion of secondary ion signal to electron dose on a pixel-by-pixel basis. Using …

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 …

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 …

HEXRD Measurement of Strain and Dislocation Density ahead of Crack Tips Grown in Hydrogen

September 13, 2019
Author(s)
Matthew J. Connolly, May L. Martin, Peter E. Bradley, Damian S. Lauria, Andrew J. Slifka, Jun Sang Park, Robert Amaro
… The deformation fields near fatigue crack tips grown in hydrogen and in air were measured using high-energy x-ray … A larger magnitude of elastic strain was observed in the hydrogen case compared to the air case. The magnitude of … back-scatter diffraction. Ahead of the crack tip grown in hydrogen, an order of magnitude lower dislocation density, …

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 …

Probing the paramagnetic interactions between the unpaired electronic spins of carbon atoms and the nuclear spins of hydrogen molecules with Raman spectroscopy

December 1, 2011
Author(s)
Andrea Centrone
… electronic spins of carbon atoms and the nuclear spins of hydrogen molecules were probed with Raman spectroscopy by … and Raman measures on carbon materials interacting with hydrogen molecules could result in a better understanding of … electronic spins of carbon atoms and the nuclear spins of hydrogen molecules with Raman spectroscopy …

Determination of the isotopic change in nuclear charge radius from extreme-ultraviolet spectroscopy of highly charged ions of Xe

June 16, 2020
Author(s)
Yuri Ralchenko, Roshani Silwal, A. Lapierre, John Gillaspy, Joan M. Dreiling, S A. Blundell, Dipti Goyal, A. Borovik, Jr., G Gwinner, A.C.C. Villari, Endre Takacs
… that extreme ultraviolet spectroscopy of highly charged ions is a precise method for measurements of changes in the … from extreme-ultraviolet spectroscopy of highly charged ions of Xe …

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 …

Special Problems When Realising the Triple Point of Hydrogen as a Defining Fixed Point of the ITS-90

June 1, 2001
Author(s)
B Fellmuth, D I. Head, F Pavese, A Szmyrka-Grzebyk, Weston L. Tew
… problems, which appear when realising the triple point of hydrogen as a temperature fixed point due to the influences … deuterium, ferric hydroxide, gadolinium oxide, hydrogen, ITS-90, ortho-para conversion, sealed triple point … Special Problems When Realising the Triple Point of Hydrogen as a Defining Fixed Point of the ITS-90 …

Quantum Control, Quantum Information Processing, and Quantum-Limited Metrology With Trapped Ions

June 19, 2005
Author(s)
David J. Wineland, Dietrich G. Leibfried, Murray D. Barrett, A. Ben-Kish, James C. Bergquist, Brad R. Blakestad, John J. Bollinger, Joseph W. Britton, J Chiaverini, B. L. DeMarco, David Hume, Wayne M. Itano, M J. Jensen, John D. Jost, Emanuel H. Knill, Jeroen Koelemeij, C. Langer, Windell Oskay, R Ozeri, Rainer Reichle, Till P. Rosenband, Tobias Schaetz, Piet Schmidt, Signe Seidelin
… on quantum informaiton processing using trapped ions at NIST. A central theme of this work has been to … information processing, quantum-state engineering, trapped ions … Processing, and Quantum-Limited Metrology With Trapped Ions …

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 …

Laser-free trapped-ion entangling gates with simultaneous insensitivity to qubit and motional decoherence

April 29, 2020
Author(s)
R. T. Sutherland, Raghavendra Srinivas, Shaun C. Burd, Hannah Knaack, Andrew C. Wilson, David J. Wineland, Dietrich Leibfried, David T. Allcock, Daniel Slichter, S. B. Libby
… for state-of-the-art implementations of laser-free trapped-ion entangling gates are decoherence of the qubit state and … Laser-free trapped-ion entangling gates with simultaneous insensitivity to qubit …

Focused Ion Beam-Induced Displacive Phase Transformation From Austenite to Martensite during Fabrication of Quenched and Partitioned Steel Micro-Pillar

January 5, 2020
Author(s)
Eun Jung Seo, Lawrence Cho, Jin Kyung Kim, Javad Mola, Lijia Zhao, Sukjin Lee, Bruno C. De Cooman
… and partitioned steel micro-pillars by using focused ion beam (FIB) technique. The BCC phase produced by the FIB … immediately after a FIB scan of the surface with the Ga+ ion beam. This report addresses challenges related to the … retained austenite, martensitic transformation, focused ion beam. …
Displaying 626 - 650 of 3757
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