An influence of thermofield emission from the cathode with a thin insulating film on fielm emission efficiency and ignition voltage of the townsend gas discharge
A model of thermo-field electron emission from the cathode with a thin insulating film on the surface at its not very high temperatures is developed. An expression for the film emission efficiency in gas discharge, equal to the fraction of electrons emitted in it, which goes out into the discharge volume and increases the cathode effective secondary electron emission yield, is obtained. It is shown that the thermo-field mechanism of electron emission influences noticeably the ignition voltage of the low current discharge with such cathode at rather low temperatures exceeding the room one by less than 100 K.
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Keywords
discharge ignition voltage, thermo-field electron emission, insulating film, low-current gas discharge, напряжение зажигания разряда, термополевая электронная эмиссия, диэлектрическая пленка, слаботочный газовый разрядAuthors
| Name | Organization | |
| Bondarenko G.G. | National Research University Higher School of Economics | bondarenko_gg@rambler.ru |
| Fisher M.R. | Bauman Moscow State Technical University, Kaluga Branch | maxrf76@gmail.com |
| Myo Thi Ha | Bauman Moscow State Technical University, Kaluga Branch | myothiha53@gmail.com |
| Kristya V.I. | Bauman Moscow State Technical University, Kaluga Branch | kristya@bmstu-kaluga.ru |
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