2 edition of interaction of low-energy atmospheric ions with controlled surfaces. found in the catalog.
interaction of low-energy atmospheric ions with controlled surfaces.
Robert Harry Prince
Written in English
|Contributions||Toronto, Ont. University.|
|The Physical Object|
|Pagination||viii, 52,  leaves.|
|Number of Pages||58|
In the s, etching characteristics by reactive ions were more extensively studied. For example, Sakai et al examined etching and deposition reactions of low-energy mass-selected ion beams on Si and SiO 2 surfaces. Shibano et al evaluated etching yields of SiO 2 by mass-selected ion beams as functions of incident energy in a low energy range. To track the particulate pollution in Sichuan Basin, sample filters were collected in three urban sites. Characteristics of water-soluble inorganic ions (WSIIs) were explored and their sources were analyzed by principal component analysis (PCA). During –, the PM concentrations were ± μg m−3 in Chengdu (CD), ± μg m−3 in Neijiang (NJ), and
The tension of the field lines will result in rapid straightening and high velocity of the field lines (≅) through the neutral atmosphere and planetary body, with very low magnetic flux density there (≅). The second condition, predicted by theoretical calculations and supported by observational data, is that the planetary ionosphere is nearly impenetrable to the solar-wind plasma. Cloutier. These ions have large initial velocity (> km s−1), and are observed on the dayside, near the terminator, and in the near wake region (– km above the surface), when the Moon is located.
To cover specific ion effects at all possible aqueous interfaces would be an almost heroic endeavor. Our goal is more modest: we aim to focus at the simplest one, i.e., the air/water interface. The general atmospheric and technological importance of this interface justifies alone our selection. Moreover, interactions between ions and air or. This introductory survey of the methods that use the interaction of low energy electrons with solid matter is designed for scientists working in surface chemistry. Rating: (not yet rated) 0 with reviews - .
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A cutting edge account concerned with comprehending low energy ion-surface interactions and several promising applications. This volume focuses on the ``subplantation'' regime where the energies of impinging particles are higher than those of thermal species (which result in surface deposition) but lower than those of highly accelerated particles (which are implanted into bulk layers).
The interaction of low-energy atmospheric ions with controlled surfaces. Title. The interaction of low-energy atmospheric ions with controlled surfaces. Author. Prince, R.H. Institution. University of Toronto Institute for Aerospace Studies.
Date. To reference this document use: Author: Robert Harry Prince. adshelp[at] The ADS is operated by the Smithsonian Astrophysical Observatory under NASA Cooperative Agreement NNX16AC86AAuthor: Robert Harry Prince. Low Energy Ion--Surface Interactions Edited by J.
Wayne Rabalais, University of Houston, Texas, USA Recent advances in experimental techniques and theoretical methodologies mean that increasingly detailed and sophisticated studies of state--or energy--selected molecular ions can now be performed.
Each volume in this series will be dedicated to reviewing a specific topic, emphasizing new. The discovery of bio-effects by implantation of low-energy ions into biological organisms has opened a new branch in the field of ion beam application in life sciences.
The groundwork of this area is based on the hypothesis of a combination of energy absorption, mass deposition, and charge transfer of energetic ions in the organisms, resulting Cited by: The loss of tropospheric ions is typically controlled by ion‐ion recombination when aerosol surface area is low and by loss to particle surfaces when particle surface area is high.
At a ground level continental site where both production and loss are high, these ions typically reach concentrations of several hundred per cm 3 and make up about. Molecular dynamics simulations of low-energy (5– eV) Cl + and Cl 2 + bombardment on () Si surfaces are performed to investigate the impact of plasma dissociation and very low-energy ions (5–10 eV) in chlorine pulsed plasmas used for silicon etch applications.
Ion bombardment leads to an initial rapid chlorination of the Si surface followed by the formation of a stable SiCl x mixed. The interaction between negative atmospheric ions and various types of organic compounds techniques used to detect chemicals on surfaces in the open air without sample preparation.
Desorption electrospray the quantitative control of the number of reactant ions for Received: 6 November Revised: 22 January of Data Acquisition are (a) Energy source, (b) Propagation of energy through the atmosphere, (c) Energy interactions with earth surface features, (d) Airborne and/ or spaceborne sensors, (e) Generation of sensor data.
Data analysis process involves examining the data in pictorial form or numerical form, analysis and presentation to the end users. We report the modulation of the specific metal gation properties of a peptide and demonstrate a highly selective sensor for copper(II) ion.
The neuropeptide oxytocin (OT) is reported for its high affinity towards Zn2+ and Cu2+ at physiological pH. The binding of the metal ions to OT is tuned by altering the pH of the medium.
OT was self-assembled on glassy carbon electrode using surface. Reactions of 5– eV C +, O +, and CO + ions with nickel oxide (NiO), nickel carbide (NiC), and chemisorbed CO on nickel (CO/Ni) have been studied in an ultrahigh vacuum environment using the surface spectroscopic techniques of XPS, UPS, and AES.
These low kinetic energy (E k) ions react with both the substrate Ni atoms as well as with the O, C, and CO adspecies, the latter reactions. The DNA-DNA force-spacing curves, also referred to as the DNA osmotic equation of state, are shown in Fig.
1 a with the force given as pressure. Under a constant [CoHex] of 1 mM and varied [Mg 2+] between 0 and 20 mM, DNA spontaneously condenses, resulting in finite DNA-DNA spacings at zero DNA-DNA force and -DNA force rises from zero upon being pushed to.
The book presents an overview on important aspects of ion irradiation of surfaces, emphasizing low impact energies. Specifically, ion penetration and implantation into solids, defect creation and amorphization of semiconductors, sputtering of elemental and multicomponent targets, and ionization processes of emitted species are discussed.
The observed differences signify the importance of the interaction between plasma-surface chemistry and ion energy for an optimized outcome. Additionally, substrate biasing during the PE-ALD of TiO 2 leads to a change in crystallinity as the energized ions promote atomic migration on surface (see figure 6(c)) [ ].
The work described in this thesis is concerned with obtaining a basic understanding of low energy(,)(ion-semiconductor surface interaction; specifically the work studies the damage and contamination effects in Si, which result from low energy ion bombardment. It is found in this study that the bombardment of low energy ions (both inert and reactive) introduces a structurally damaged.
Positive and negative hydrogen ion reflections from surfaces by injecting singly charged hydrogen ion beams show a clear difference between atomic and molecular ion injections at low energy and grazing incidence.
Low energy ion-surface-interaction-atomic physics in an ordered atom environment Article (PDF Available) in Australian Journal of Physics 37(4) January. Io's atmosphere: Pressure control by regolith cold trapping and surface venting. Io’s Atmosphere and Surface-Atmosphere Interactions, The Outer Planets and their Moons, /, (), Ion chemistry, atmospheric escape, and models corresponding to the Pioneer 10 radio occultation measurements, Icarus, / The region of a protein that associates with a ligand, known as the ligand’s binding site, usually consists of a cavity in the protein surface formed by a particular arrangement of amino acids.
These amino acids can belong to different portions of the polypeptide chain that are brought together when the protein folds (Figure ).Separate regions of the protein surface generally provide. In the troposphere and lower stratosphere the atmospheric conductivity is maintained by the so-called small ions with reduced mobilities around cm2/V sec, whereas the mobilities of large ions (charged aerosol particles or large molecular clusters) are too small to.
An active comet emits gas and dust that expand into the surrounding space and form the comet atmosphere or coma. Its neutral component—which is mainly composed of H 2 O, CO, and CO 2 —is thought to result from the sublimation of near surface ice or icy grains when the comet draws closer to the Sun ().Interplanetary space is permeated by the solar wind: a stream of charged particles (plasma.Atmospheric Scattering •Mie Scattering –particles that have a mean diameter to 10 times the incident wavelength –examples: water vapor, smoke particles, fine dust –scattering intensity is proportional to l-4 to l0 (depending on particle diameter) •Clear atmosphere has both Rayleigh and Mie scattering.
Their combined influence is.Nitric acid in air is formed by atmospheric reactions of oxides of nitrogen and is removed primarily through deposition to surfaces, either as the gas or after conversion to particulate nitrate. Many of the surfaces and particles have organic coatings, but relatively little is known about the interaction of nitric acid with organic films.