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Displaying 601 - 625 of 2769

EUV spectra from N-shell ions of Gd, Dy and W

September 23, 2013
Author(s)
Deirdre Kilbane, John D. Gillaspy, Yuri Ralchenko, Joseph Reader, G. O'Sullivan
… radiation from gadolinium, dysprosium and tungsten ions with an open n=4 shell were performed at the National Institute of Standards and Technology. The ions were produced and confined in an electron beam ion trap … EUV spectra from N-shell ions of Gd, Dy and W …

Thick Sintered Electrode Lithium-Ion Battery Discharge Simulations: Incorporating Lithiation-Dependent Electronic Conductivity and Lithiation Gradient due to Charge Cycle

April 21, 2021
Author(s)
Daniel S. Hussey, Jacob LaManna, David L. Jacobson, Gary Koenig
… In efforts to increase the energy density of lithium-ion batteries, researchers have attempted to both increase … Thick electrode, Modeling, Discharge Simulation, Lithium-Ion Battery … Thick Sintered Electrode Lithium-Ion Battery Discharge Simulations: Incorporating …

Atomic Physics in Ion Traps

March 1, 1997
Author(s)
C Monroe, John Bollinger
… Ion traps allow researchers to control the position and … Atomic Physics in Ion Traps …

Hybrid glass substrates for waveguide device manufacture

April 15, 2001
Author(s)
Samuel D. Conzone, Joseph S. Hayden, David S. Funk, Alexana Roshko, D. L. Veasey
… substrates composed of active (ER/Yb co-doped) and passive phosphate glass were prepared by a novel, low temperature … Er/Yb doped phosphate glass, hybrid glass substrates, hybrid laser, low …

Scalable Quantum Logic Spectroscopy

November 2, 2022
Author(s)
Kaifeng Cui, Jose Valencia, Kevin Boyce, Ethan Clements, David Leibrandt, David Hume
… In quantum logic spectroscopy (QLS), one species of trapped ion is used as a sensor to detect the state of an otherwise inaccessible ion species. This extends precision measurements to a broader … to address the problem of scaling QLS to larger ion numbers. We demonstrate the basic features of this method …

Colloquium: Ionic phenomena in nanoscale pores through 2D materials

June 27, 2019
Author(s)
Subin Sahu, Michael P. Zwolak
… Ion transport through channels and nanoscale pores cuts … develop filtration and sensing technologies, encompassing ion exclusion membranes, DNA sequencing, single molecule … We will discuss both the physics and applications of ion transport and sensing in 2D membranes. …

Depth Profiling Using C 60 + SIMS Deposition and Topography Development During Bombardment of Silicon

July 30, 2006
Author(s)
John G. Gillen, J Batteas, Chris A. Michaels, P Chi, John A. Small, Eric S. Windsor, Albert J. Fahey, Jennifer R. Verkouteren, W Kim
… A C60+ primary ion source has been coupled to an ion microscope SIMS instrument to examine sputtering of … also observed on silicon substrates after high primary ion dose C60+ bombardment. … cluster bombardment, depth profiling, fullerene, ion source, secondary ion mass spectrometry …

Certification of 3180 Series Standard Reference Materials(R) Anions in Solution

August 26, 2025
Author(s)
Brian Lang, Thomas Vetter, John Molloy, Antonio Possolo
… a gravimetric preparation value and a carefully measured ion chromatography instrumental value, taking their … solutions: bromide, chloride, fluoride, iodide, nitrate, phosphate, and sulfate. New lots of these SRMs produced … Anions, Certified Value, Gravimetric Preparation, Ion Chromatography, Primary Standard (PS), Primary Standard …

Energies and E1, M1, E2, and M2 transition rates for states of the 2s22p4, 2s2p5, and 2p6configurations in oxygen-like ions between F II and Kr XXIX.

September 24, 2013
Author(s)
P. Rynkun, P. Jonsson, G. Gaigalas, Charlotte F. Fischer
… 2s2p5, and 2p6 configurations in all oxygen-like ions between F II and Kr XXIX. Valence, core-valence, and … O-like ions, energies, lifetimes, transition rates, weighted … of the 2s22p4, 2s2p5, and 2p6configurations in oxygen-like ions between F II and Kr XXIX. …

Measurement of the Kr XVIII 3d 2D5/2 lifetime in a Unitary Penning Trap

April 24, 2014
Author(s)
Nicholas D. Guise, Joseph Tan, Samuel Brewer, Charlotte F. Fischer, P. Jonsson
… trapping volume. Kr17+ ions produced in an electron beam ion trap (EBIT) are extracted and captured in this unitary … that is about a factor of 102 lower than in the EBIT ion source. The 637 nm photons emitted by the captured Kr … Ion trapping, Atomic spectroscopy, Atomic Physics …

Fragmentation of Leucine Enkephalin as a Function of Laser Fluence in a MALDI TOF-TOF

April 2, 2007
Author(s)
Jennifer M. Campbell, Stephen Stein, Paul S. Blank, Jonathan Epstein, Marvin L. Vestal, Alfred L. Yergey
… The effects of laser fluence on ion formation in MALDI was studied using a tandem TOF mass … followed over laser fluence ranging from the threshold of ion formation to the maximum available, i.e., approximately … data suggest the presence of two distinct environments for ion formation. One is associated with molecular desorption at …

Heavy ion space radiation triggers ongoing DNA base damage by downregulating DNA repair pathways

July 7, 2020
Author(s)
Shubhankar Suman, Pawel Jaruga, M Miral Dizdar, Albert J. Fornace, Jr., Datta Kamal
… particle radiation especially to highly damaging heavy ion radiation, which poses considerable risk to astronauts' … diseases including gastrointestinal diseases after heavy ion radiation exposure during space travel. … Heavy ion space radiation, DNA damage and repair, oxidative stress, …

Architecture for a Large-Scale Ion-Trap Quantum Computer

January 1, 2002
Author(s)
D Kielpinski, C R. Monroe, David J. Wineland
… being explored for quantum computers are systems utilizing ion traps, in which quantum bits (qubits) are formed from the … on using quantum communication to link a number of small ion- trap quantum systems. Developing the array-based … subspaces significantly reduces decoherence during ion transport, and removes the requirement of clock …

Comparison of Mg-based liquid metal ion sources for scalable focused-ion-implantation doping of GaN

April 18, 2024
Author(s)
Aaron Katzenmeyer, Michael Titze, Sam Frisone, Tony Ohlhausen, Anthony Flores, Deanna Campbell, Bingjun Li, Yongqiang Wang, Jung Han, Edward Bielejec, Rachel Goldman
… suitability of various magnesium-based liquid metal alloy ion sources (LMAIS) for scalable focused-ion-beam (FIB) implantation doping of GaN. We consider GaMg, … Mg depth profile data from Time-of-Flight Secondary Ion Mass Spectrometry (ToF-SIMS). We also provide insight …

Multi-configuration Dirac-Hartree-Fock calculations of forbidden transitions within the 3d^k ground configurations of highly charged ions (Z = 72 - 83)

February 21, 2017
Author(s)
Z.L. Zhao, K. Wang, S. Li, R. Si, C.Y. Chen, J. Yan, Yuri Ralchenko
… 3p^6 3d^k(k = 1−9) ground configurations of highly charged ions (Z = 72−83). Complete and consistent data sets of level … Dirac-Hartree-Fock calculations, highly charged ions, magnetic dipole transitions, electric quadrupole … within the 3d^k ground configurations of highly charged ions (Z = 72 - 83) …

Simultaneous neutron and X-ray tomography for ex-situ 3D visualization of graphite anode degradation from extremely fast-charged lithium-ion batteries

November 16, 2022
Author(s)
Maha Yusuf, Jacob LaManna, Partha Paul, David Agyeman-Budu, Chuntian Cao, Alison Dunlop, Andrew Jansen, Bryant Polzin, Stephen Trask, Tanvir Tanim, Eric Dufek, Vivek Thampy, Hans-Georg Steinruck, Michael Toney, Johanna Weker
… Extreme fast charging (XFC) of commercial lithium-ion batteries (LIBs) in ≤10-15 minutes will significantly … X-ray imaging, tomography, extreme-fast charging, lithium-ion batteries … anode degradation from extremely fast-charged lithium-ion batteries …

Bevel Depth Profiling SIMS for Analysis of Layer Structures

September 1, 2003
Author(s)
John G. Gillen, Scott A. Wight, P Chi, Albert J. Fahey, Jennifer R. Verkouteren, Eric S. Windsor, D. B. Fenner
… are evaluating the use of bevel depth profiling Secondary Ion Mass Spectrometry (SIMS) for the characterization of … the analytical sample with an oxygen or cesium primary ion beam in a commercial SIMS instrument. The elemental … the resulting bevel surface is then imaged with a focused ion beam in the same instrument. This approach offers maximum …

Quantum Electrodynamics in the Dark

August 1, 2001
Author(s)
John D. Gillaspy
… dielectronic recombination, highly charged ions, ion traps, QED, quantum electrodynamics, strong electric …

Measuring Ion-Pairing in Buffer Solutions with Microwave Microfluidics

June 14, 2018
Author(s)
Angela C. Stelson, Charles A. Little, Nathan D. Orloff, Christian J. Long, James C. Booth
… such as electrical double layers (EDL), solvent-mediated ion interactions, and bound water molecules. However, … relaxations associated with the EDL, water molecules, and ion-pairing in solution. We compare the three-Debye … fit to a Cole-Cole/Debye model which does not include the ion-pairing relaxation, and find improved goodness of fit. …
Displaying 601 - 625 of 2769
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