Technical Physics Letters
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- 2023
- 2022
Long-term reproducibility of emission characteristics of high-current diamond-graphite sources of electrons with field emission under non-stationary vacuum operating conditions
Yafarov R. K.1,2, Storublev A. V.
2,3
1Saratov Branch, Kotel’nikov Institute of Radio Engineering and Electronics, Russian Academy of Sciences, Saratov, Russia
2Saratov State University, Saratov, Russia
3Joint Stock Company Research and Production Enterprise Almaz, Saratov, Russia
2Saratov State University, Saratov, Russia
3Joint Stock Company Research and Production Enterprise Almaz, Saratov, Russia
Email: StorublevAV@almaz-rpe.ru
The results of a study of the long-term reproducibility of the emission characteristics of electron sources with field emission density of up to 1000 A/cm2 of based on composite nanocarbon films are presented. It was found that high-current field emission is accompanied by the sputtering of residual gas ions from atoms of the cathode material and its sedimentation on the anode. The results can be used to predict the durability of high-current diamond-graphite cathodes with field emission when operating in unsteady temperature-vacuum conditions. Keywords: diamond-graphite nanocomposite, high-current field emission, reproducibility of field emission parameters, service life of cathode with field emission.
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Дата начала обработки статистических данных - 27 января 2016 г.