Publication: Overheating of Nanostructured Tendril Bundles due to Thermo-Field Emission
Дата
2020
Авторы
Hwangbo, D.
Kajita, S.
Ohno, N.
Sinelnikov, D.
Bulgadaryan, D.
Efimov, N.
Kulagin, V.
Kurnaev, V.
Journal Title
Journal ISSN
Volume Title
Издатель
Аннотация
© 2021 IEEEField emission current accompanied by visualization of emission sites distribution was measured for nanostructured tendril bundles (NTB) on a tungsten surface. These structures are formed in linear simulators of plasma-surface interaction under helium plasma irradiation with Ne or N2 mixture, and unipolar arcing is often observed for such surfaces. It was shown that field emission current from NTB could be stable for a long period under constant electric field making these structures promising to use as flat cold cathodes. A numerical model was developed for calculating the thermo-field emission current and for checking the possibility of self-heating of the structures depending on their shape. Critical electric field values that lead to self-heating were estimated for different NTB shapes and compared with experimental results.
Описание
Ключевые слова
Цитирование
Overheating of Nanostructured Tendril Bundles due to Thermo-Field Emission / Hwangbo, D. [et al.] // Proceedings - International Symposium on Discharges and Electrical Insulation in Vacuum, ISDEIV. - 2020. - 2021-September. - P. 77-80. - 10.1109/ISDEIV46977.2021.9587247