The Drift Velocity Of Electrons In Carbon Dioxide At 293°K

Elford, M. T.

doi:10.1071/ph660629

Cited by 29 publications

(1 citation statement)

References 2 publications

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“…Now the electron transport in carbon dioxide (CO 2 ) attracts considerable attention because CO 2 makes the main contribution to the greenhouse effect аs well as because it is widely pervasive in the atmospheres of the planets and satellites of the solar system. The V dr values have been registered and calculated mainly in the range E/N 1000 Td [24][25][26][27][28][29][30][31][32]. And only in [33] they have been measured by Schlümbohm for the range E/N = 450-6000 Td (E/p from 150 to 2000 V/(cm Torr)).…”

Section: Introductionmentioning

confidence: 99%

Electron drift velocity in acetylene and carbon dioxide determined from rf breakdown curves

Lisovskiy¹,

Dudin²,

Platonov³

et al. 2023

Phys. Scr.

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In this work, we measured the breakdown curves of radio-frequency (13.56 MHz) capacitive discharge in acetylene and in carbon dioxide. The electron drift velocity values were determined in the reduced electric field range 319 Td ≤ E/N ≤ 3409 Td (1 Townsend = 10−17 Vcm2) in acetylene and 272 Td ≤ E/N ≤ 6240 Td in carbon dioxide from turning points on the measured breakdown curves. Treating the electron motion equations and the gas breakdown criterion in the rf electric field we have demonstrated that the method of electron drift velocity determination we employed is universal for arbitrary gasses, and a possible dependence of the electron mobility and diffusion on the reduced electric field strength E/N does not affect the drift velocity values obtained with it. We have demonstrated that in the range of E/N values we have studied the ionization rate exceeds the attachment rate considerably therefore one may neglect the effect the attachment of free electrons to gas molecules plays on electron drift velocity. We have explained the reason why the values of the electron drift velocity we have obtained differ from those obtained by other authors.

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