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.

scholarly journals On the Swarm Method for Determining the Ratio of Electron Drift Velocity to Diffusion Coefficient

1962 ◽  
Vol 15 (4) ◽  
pp. 451 ◽  
Author(s):  
RW Crompton ◽  
RL Jory
Keyword(s):  
Diffusion Coefficient ◽  
Drift Velocity ◽  
Thermal Equilibrium ◽  
Electron Drift Velocity ◽  
Electron Drift ◽  
Use Of Data ◽  
Factors Influencing ◽  
Number Of Factors ◽  
Accuracy Of Measurements ◽  
Range Of Values

The use of data from swarm experiments for electron energies approaching those corresponding to thermal equilibrium demands results of greater precision than has hitherto been available. In order to examine the possibility of producing such data, the swarm method for detennining W / D has been extensively examined over a range of values of the parameter E / p where the agreement between the results of recent investigations is not good. A number of factors influencing the accuracy of measurements of this type are discussed. The results for hydrogen which are presented are considered to be subject to an error of less than 1 %.

Electron drift velocity versus electric field in GaAs

1986 ◽  
Vol 29 (12) ◽  
pp. 1295-1296 ◽  
Author(s):  
Chian S. Chang ◽  
Harold R. Fetterman
Keyword(s):  
Electric Field ◽  
Drift Velocity ◽  
Electron Drift Velocity ◽  
Velocity Versus ◽  
Electron Drift
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