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Electrolytically Ionized Abrasive-Free CMP (EAF-CMP) for Copper

open access: yesApplied Sciences, 2021
Chemical–mechanical polishing (CMP) is a planarization process that utilizes chemical reactions and mechanical material removal using abrasive particles.
Seonghyun Park, Hyunseop Lee
doaj   +1 more source

Ionization-Gasdynamic Simulations of Wind-Blown Nebulae around Massive Stars

open access: yesGalaxies, 2022
Using a code that employs a self-consistent method for computing the effects of photo-ionization on circumstellar gas dynamics, we model the formation of wind-driven nebulae around massive stars.
Vikram V. Dwarkadas
doaj   +1 more source

Electron-Impact Ionization of Heavy Atoms Using the Time-Dependent Close-Coupling Method

open access: yesAtoms, 2021
The time-dependent close-coupling method has been recently applied to calculate electron-impact direct ionization cross sections for the Kr, W, and Pb atoms. An overview is presented for these three heavy neutral atom systems.
Michael S. Pindzola   +2 more
doaj   +1 more source

Thermal Ionization [PDF]

open access: yesMathematical Physics, Analysis and Geometry, 2004
In the context of an idealized model describing an atom coupled to black-body radiation at a sufficiently high positive temperature, we show that the atom will end up being ionized in the limit of large times. Mathematically, this is translated into the statement that the coupled system does not have any time-translation invariant state of positive ...
Jürg Fröhlich, Marco Merkli
openaire   +3 more sources

Separation of ions with the same charge to mass ratio from a collision experiment [PDF]

open access: yesJournal of the Serbian Chemical Society, 2000
Some atomic collision experiments lead to ions having identical q/m ratio, as well as average velocity, so that standard electric and magnetic analyzers are not able to identify them separately.
Belić Dragoljub S., Defrance Pierre
doaj   +1 more source

Experimental Evaluations of the Impact of an Additive Oxidizing Electronic Air Cleaner on Particles and Gases

open access: yesPollutants, 2022
Electronic air cleaning (EAC) technologies have garnered significant attention for use in buildings. Many EAC technologies rely on the addition of reactive constituents to indoor air to react with gas-phase compounds, enhance particle deposition, and/or ...
Yicheng Zeng   +4 more
doaj   +1 more source

High-order harmonic spectroscopy in an ionized high-density target

open access: yesFrontiers in Physics, 2022
We use high-order harmonic spectroscopy to study ionization dynamics in a macroscopic target with tunable density, spanning over six orders of magnitude.
Heiko G. Kurz   +12 more
doaj   +1 more source

Ionization of acetonitrile [PDF]

open access: yesInternational Journal of Mass Spectrometry, 2019
Abstract The ionization of acetonitrile has been studied using both electron and photon ionization combined with coincidence detection techniques. Relative partial ionization cross sections and relative precursor-specific partial ionization cross-sections are determined for all the cations formed from single, double and triple electron ionization of ...
Michael A. Parkes   +2 more
openaire   +3 more sources

Ionization by electron impacts and ionization potential depression

open access: yesJournal of Physics B: Atomic, Molecular and Optical Physics, 2022
Abstract We calculate the cross-section of ionization by free-electron impacts in high or moderate density plasmas. We show that the so-called ionization potential depression (IPD) strongly affects the magnitude of the cross-section in the high-density domain. We use the well-known IPD formulas of Stewart–Pyatt and Ecker–Kröll.
Benredjem, Djamel   +3 more
openaire   +2 more sources

Burns by Ionizing and Non-Ionizing Radiation [PDF]

open access: yesMediterranean Journal of Basic and Applied Sciences, 2021
This article consists of the study and investigative analysis of the effects of burns by radiation in humans. Cases of nuclear accidents, such as Chernobyl (ionizing radiation) and the effects of non-ionizing radiation such as infrared and microwave radiation are detailed.
Giovanni Alcocer, Priscilla Alcocer
openaire   +1 more source

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