1985
DOI: 10.1088/0022-3727/18/10/011
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The ratio of radial diffusion coefficient to mobility for electrons in hydrogen, nitrogen and carbon monoxide at high E/N

Abstract: Measurements of the ratio of radial diffusion coefficient to mobility, Dr/ mu , have been obtained for carbon monoxide, nitrogen and hydrogen. A pulse technique has been used covering a wide range of E/N from 28 to 5650 Td. The values of Dr/ mu vary between 0.8 and 17 eV in carbon monoxide, between 1.2 and 16 eV in nitrogen and between 1 and 12 eV in hydrogen. Comparison has been made with results of a Monte Carlo computer simulation. For all the gases, fair agreement has been obtained with the theory except f… Show more

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Cited by 10 publications
(3 citation statements)
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“…We now derive an upper bound for the pre-ionization electron density for the NRP spark discharges in atmospheric pressure air discussed in this work, based on the theoretical framework from Levatter and Lin (1980). Experimental studies of electron transport coefficients in the 1000 Td range for air and nitrogen report only the ratio D T /µ e between the radial diffusion coefficient D T and the mobility µ e as a function of the reduced electric field E/N (Lakshminarasimha and Lucas 1977, Al-Amin et al 1985, Roznerski 1996). In the range E/N = 2000-4000 Td, the value of D T /µ e for nitrogen is about constant at 15 V (Al-Amin et al 1985), and here we will assume D T /µ e = 15 V for air as well.…”
Section: Discussionmentioning
confidence: 99%
“…We now derive an upper bound for the pre-ionization electron density for the NRP spark discharges in atmospheric pressure air discussed in this work, based on the theoretical framework from Levatter and Lin (1980). Experimental studies of electron transport coefficients in the 1000 Td range for air and nitrogen report only the ratio D T /µ e between the radial diffusion coefficient D T and the mobility µ e as a function of the reduced electric field E/N (Lakshminarasimha and Lucas 1977, Al-Amin et al 1985, Roznerski 1996). In the range E/N = 2000-4000 Td, the value of D T /µ e for nitrogen is about constant at 15 V (Al-Amin et al 1985), and here we will assume D T /µ e = 15 V for air as well.…”
Section: Discussionmentioning
confidence: 99%
“…As a result we chose for calculations the value μ e1 = 3.5•10 5 cm 2 Torr V −1 s −1 . From papers Naidu and Prasad (1968), Roznerski (1978), Leja (1980), andAl-Amin et al (1985), we determined the coefficient of free diffusion of electrons D e1 = 4 • 10 5 cm 2 Torr s −1 .…”
Section: Results Of Calculations For Hydrogenmentioning
confidence: 99%
“…However, practical insulation geometries are characterized by non-uniform field stresses either due to design considerations or the presence of environmental contaminants that cause local increase in field stress. Swarm measurements at very high E/N range have been performed by [12][13][14][15][16]. Attempts were also made to simulate the swarm parameters using Monte-Carlo/Boltzmann solvers for pure gases, with computed values depending on the solver that is used [17][18][19][20][21][22].…”
Section: Introductionmentioning
confidence: 99%