Numerical analysis for charge accumulation on the chunnel of field emission devices

Liu, Min; Zhang, Xiaobing; Lei, Wei; Wang, Baoping; Wang, Qilong

doi:10.1016/j.apsusc.2004.01.031

Cited by 6 publications

(2 citation statements)

References 7 publications

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“…13 In our latest papers, 14,15 we reported that MgF 2 film, which is usually used as optical film, also has a good SEE yield. 13 In our latest papers, 14,15 we reported that MgF 2 film, which is usually used as optical film, also has a good SEE yield.…”

Section: Simulation Model and Experimentsmentioning

confidence: 97%

Novel gun of rf power amplifier based on always-on cold cathode

Wang

Lei

et al. 2007

Journal of Vacuum Science &Amp; Technology B: Microelectronics and Nanometer Structures Processing, Measurement, and Phenomena

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A new simplified high radio frequency power amplifier Rev. Sci. Instrum. 75, 3356 (2004); 10.1063/1.1790566 Random density inhomogeneities and focusability of the output pulses for plasma-based powerful backward Raman amplifiers A novel gun double hop gun of rf power amplifier based on an always-on ringed cold cathode is suggested. Double hopping electron funnels, including a metal funnel and a glass funnel, are fabricated in. MgO film is deposited around the walls of the funnels by electron beam evaporation. Secondary electrons or backscatters ͑elastic and inelastic͒ escape from the dielectric film ͑MgO͒ under the bombardment of accelerated electrons and are driven to the exit window of the glass funnel by a modulated voltage. Among the escaping electrons, the ratios of secondary emission electrons, elastic scatters, and inelastic scatters are 90%, 9%, and 1%, respectively. Most of the escaping electrons at the exit window have low energy ͑Ͻ50 eV͒ and can be easily controlled by the modulated voltage with low amplitude ͑ϳ100 V͒ applied on the electrode of the glass funnel. The average velocity in the Z direction of the escaping electrons increases as the amplitude of the modulated voltage ͑V gate ͒ increases. The distributions of the velocities in the X and Y directions are found to be symmetrical.

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