Drift velocity and longitudinal diffusion coefficient of electrons in nitrogen and carbon monoxide

1987 ◽  
Vol 20 (7) ◽  
pp. 933-938 ◽  
Author(s):  
Y Nakamura
Keyword(s):  
Carbon Monoxide ◽  
Diffusion Coefficient ◽  
Drift Velocity ◽  
Longitudinal Diffusion

scholarly journals Drift Velocity and Longitudinal Diffusion Coefficient of Electrons in CO2?Ar Mixtures and Electron Collision Cross Sections for CO2 Molecules

1995 ◽  
Vol 48 (3) ◽  
pp. 357 ◽  
Author(s):  
Y Nakamura
Keyword(s):  
Diffusion Coefficient ◽  
Momentum Transfer ◽  
Cross Section ◽  
Drift Velocity ◽  
Cross Sections ◽  
Vibrational Excitation ◽  
Electron Collision ◽  
Longitudinal Diffusion ◽  
Excitation Cross Sections ◽  
Momentum Transfer Cross Section

The drift velocity and longitudinal diffusion coefficient of electrons in 0�2503% and 1� 97% C02-Ar mixtures were measured for 0�03 ~ E/N ~ 20 Td. The measured electron swarm parameters in the mixtures were used to derive a set of consistent vibrational excitation cross sections for the C02 molecule. Analysis of electron swarms in pure C02 using the present vibrational excitation cross sections was also carried out in order to determine a new momentum transfer cross section for the C02 molecule.

scholarly journals Monte Carlo Simulation of an Electron Swarm in an Argon-like Gas

1987 ◽  
Vol 40 (1) ◽  
pp. 61 ◽  
Author(s):  
Katsuhisa Koura
Keyword(s):  
Monte Carlo Simulation ◽  
Monte Carlo ◽  
Diffusion Coefficient ◽  
Cross Section ◽  
Drift Velocity ◽  
Atomic Mass ◽  
Deep Minimum ◽  
Longitudinal Diffusion ◽  
Transverse Diffusion

A Monte Carlo simulation (MCS) of an electron swarm in an argon-like gas (of atomic mass a.m.u.), with Golden's cross section with a very deep minimum, is presented in order to examine the breakdown of the validity of the conventional two-term expression for the transverse diffusion coefficient Dr indicated by Milloy and Watts. It is found that the MCS value of Dr approaches the two-term value much slower than other swarm parameters such as the drift velocity Wand the longitudinal diffusion coefficient ~. The discrepancy between the MCS and two-term values of Dr revealed by Milloy and Watts is attributable to the evaluation of Dr at the long transient (correlation) stage in the MCS. It is concluded that the two-term expressions for Dr and ~ (and other swarm parameters) are sufficiently accurate even for Golden's cross section with a very deep minimum.

scholarly journals Electron Swarm Transport Through Low Pressure Noble Gases

1992 ◽  
Vol 45 (2) ◽  
pp. 185 ◽  
Author(s):  
G Dall’Armi ◽  
KL Brown ◽  
PH Purdie ◽  
J Fletcher
Keyword(s):  
Diffusion Coefficient ◽  
Drift Velocity ◽  
Noble Gases ◽  
Electron Drift Velocity ◽  
Current Work ◽  
Electron Drift ◽  
Longitudinal Diffusion ◽  
Transient Technique ◽  
Voltage Transient ◽  
Helium Neon

The electron drift velocity, the longitudinal diffusion coefficient and the electron ionisation coefficient have been measured in helium, neon, argon and krypton using the integrated voltage transient technique. Whilst the present data agree substantially with previous determinations at those values of E / N at which they overlap, the current work represents a marked extension of the range of E/N covered for We and NDL in most of the gases investigated.

Drift velocity and longitudinal diffusion coefficient of electrons in pure ethene

2011 ◽  
Vol 44 (31) ◽  
pp. 315201 ◽  
Author(s):  
Junpei Takatou ◽  
Hiroshi Sato ◽  
Yoshiharu Nakamura
Keyword(s):  
Diffusion Coefficient ◽  
Drift Velocity ◽  
Longitudinal Diffusion
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