Erratum: Numerical Study of the Three‐Body Ion–Ion Recombination Coefficient

1968 ◽  
Vol 49 (12) ◽  
pp. 5558-5558
Author(s):  
Peter J. Feibelman
Keyword(s):  
Numerical Study ◽  
Recombination Coefficient ◽  
Ion Recombination ◽  
Three Body

Ion neutralization reactions in irradiated hydrogen chloride, hydrogen bromide, and nitrous oxide

1970 ◽  
Vol 48 (4) ◽  
pp. 598-602 ◽  
Author(s):  
D. E. Wilson ◽  
D. A. Armstrong
Keyword(s):  
Nitrous Oxide ◽  
Hydrogen Chloride ◽  
Hydrogen Bromide ◽  
Recombination Coefficient ◽  
X Rays ◽  
Ion Density ◽  
Ion Recombination ◽  
Three Body

Rates of ion neutralization have been measured in hydrogen chloride, hydrogen bromide, and nitrous oxide by collecting the ions remaining in a defined volume at various times after ionization by a pulse of 120 k.v.p. X-rays. Values of the total homogeneous ion-ion recombination coefficient, a, have been obtained for each gas over a range of pressures in the region 50 to 650 Torr. From a study of the effects of pressure and ion density, the relative rates of wall diffusion, mutual neutralization, and three-body neutralization have been deduced.

Pressure and Electron Density Dependence of the Electron-Ion Recombination Coefficient in Helium

1970 ◽  
Vol 1 (3) ◽  
pp. 887-896 ◽  
Author(s):  
Jacques Berlande ◽  
Michel Cheret ◽  
Robert Deloche ◽  
Alain Gonfalone ◽  
Claude Manus
Keyword(s):  
Density Dependence ◽  
Electron Density ◽  
Recombination Coefficient ◽  
Ion Recombination

scholarly journals Experimental investigation of ion–ion recombination under atmospheric conditions

2015 ◽  
Vol 15 (13) ◽  
pp. 7203-7216 ◽  
Author(s):  
A. Franchin ◽  
S. Ehrhart ◽  
J. Leppä ◽  
T. Nieminen ◽  
S. Gagné ◽  
...  
Keyword(s):  
Sulfur Dioxide ◽  
Ozone Concentration ◽  
Galactic Cosmic Rays ◽  
Strong Increase ◽  
Recombination Coefficient ◽  
Proton Synchrotron ◽  
Atmospheric Conditions ◽  
Ionization Source ◽  
Fourfold Increase ◽  
Ion Recombination

Abstract. We present the results of laboratory measurements of the ion–ion recombination coefficient at different temperatures, relative humidities and concentrations of ozone and sulfur dioxide. The experiments were carried out using the Cosmics Leaving OUtdoor Droplets (CLOUD) chamber at CERN, the walls of which are made of conductive material, making it possible to measure small ions. We produced ions in the chamber using a 3.5 GeV c−1 beam of positively charged pions (π+) generated by the CERN Proton Synchrotron (PS). When the PS was switched off, galactic cosmic rays were the only ionization source in the chamber. The range of the ion production rate varied from 2 to 100 cm−3 s−1, covering the typical range of ionization throughout the troposphere. The temperature ranged from −55 to 20 °C, the relative humidity (RH) from 0 to 70 %, the SO2 concentration from 0 to 40 ppb, and the ozone concentration from 200 to 700 ppb. The best agreement of the retrieved ion–ion recombination coefficient with the commonly used literature value of 1.6 × 10−6 cm3 s−1 was found at a temperature of 5 °C and a RH of 40 % (1.5 ± 0.6) × 10−6 cm3 s−1. At 20 °C and 40 % RH, the retrieved ion–ion recombination coefficient was instead (2.3 ± 0.7) × 10−6 cm3 s−1. We observed no dependency of the ion–ion recombination coefficient on ozone concentration and a weak variation with sulfur dioxide concentration. However, we observed a more than fourfold increase in the ion–ion recombination coefficient with decreasing temperature. We compared our results with three different models and found an overall agreement for temperatures above 0 °C, but a disagreement at lower temperatures. We observed a strong increase in the recombination coefficient for decreasing relative humidities, which has not been reported previously.

scholarly journals A Spectroscopic Study of a Decaying Hydrogen Plasma

1965 ◽  
Vol 18 (1) ◽  
pp. 23 ◽  
Author(s):  
FE Irons ◽  
DD Millar
Keyword(s):  
Spectroscopic Study ◽  
Hydrogen Plasma ◽  
Experimental Methods ◽  
Recombination Coefficient ◽  
Ion Density ◽  
Temperature Distributions ◽  
Experimental Values ◽  
Three Body ◽  
Body Recombination

A study has been made of the decay of a hydrogen plasma of ion density ~3���1015 cm?3 and temperature ~104�K. Details are presented of the experimental methods used to determine density and temperature distributions in the decaying plasma. The plasma decays by three-body recombination mainly and the experimental values of the recombination coefficient agree with those expected for a plasma opaque to Lyman radiation.

scholarly journals Numerical Investigation for Periodic Orbits in the Hill Three-Body Problem

Universe ◽  
2020 ◽  
Vol 6 (6) ◽  
pp. 72 ◽  
Author(s):  
Vassilis S. Kalantonis
Keyword(s):  
Periodic Orbits ◽  
Body Problem ◽  
Numerical Study ◽  
Three Dimensional ◽  
Earth Satellite ◽  
Mission Design ◽  
Special Importance ◽  
Three Body Problem ◽  
Three Body ◽  
The Hill

The current work performs a numerical study on periodic motions of the Hill three-body problem. In particular, by computing the stability of its basic planar families we determine vertical self-resonant (VSR) periodic orbits at which families of three-dimensional periodic orbits bifurcate. It is found that each VSR orbit generates two such families where the multiplicity and symmetry of their member orbits depend on certain property characteristics of the corresponding VSR orbit’s stability. We trace twenty four bifurcated families which are computed and continued up to their natural termination forming thus a manifold of three-dimensional solutions. These solutions are of special importance in the Sun-Earth-Satellite system since they may serve as reference orbits for observations or space mission design.

Temporal Spectra Behavior in Femtosecond LIBS of Marine Water

2014 ◽  
Vol 644-650 ◽  
pp. 1443-1447
Author(s):  
Alexey Ilyin ◽  
Sergey Golik ◽  
Yuliya Biryukova ◽  
Michael Babiy ◽  
Dmitrii Apeksimov
Keyword(s):  
Detection Limit ◽  
Femtosecond Laser ◽  
Decay Time ◽  
Line Intensity ◽  
Water Surface ◽  
Sea Water ◽  
Recombination Coefficient ◽  
Femtosecond Laser Plasma ◽  
Three Body ◽  
Body Recombination

Spectral dynamics of femtosecond laser plasma induced on the sea water surface is investigated. Characteristic decay time of continuum and line intensity of Mg II, Ca II and Na I are determined. Electron density that changes from 3.0·1016to 2.4·1015cm-3was provided by usage of three-body recombination coefficient. It is shown that Na detection limit will be least in comparison with Mg and Ca.

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