Publication: Field Emission from Nanostructured Tendril Bundles
Дата
2019
Авторы
Hwangbo, D.
Kajita, S.
Ohno, N.
Sinelnikov, D.
Bulgadaryan, D.
Kurnaev, V.
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Аннотация
© 1973-2012 IEEE.Field emission from tungsten surfaces with nano-tendril bundles formed after exposure to helium plasma with nitrogen or neon impurities was measured using a vacuum diode device. Field enhancement factor and effective emission area were calculated using the Fowler-Nordheim formula and compared for different types of nanostructures. The field enhancement factor for these structures can reach several thousands and the effective emission area can be more than 1000 nm2. Anode luminescence was detected using long-exposure photography and allowed for estimation of current density near the anode. Unipolar arc tracks were observed on the samples with the highest field emission intensity. We show that field emission from nano-tendril bundles is much higher than that from tungsten fuzz or pure tungsten, and fusion-relevant plasma conditions may lead to arc initiation.
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Цитирование
Field Emission from Nanostructured Tendril Bundles / Hwangbo, D. [et al.] // IEEE Transactions on Plasma Science. - 2019. - 47. - № 11. - P. 5186-5190. - 10.1109/TPS.2019.2942725
URI
https://www.doi.org/10.1109/TPS.2019.2942725
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https://www.scopus.com/record/display.uri?eid=2-s2.0-85075624858&origin=resultslist
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS_CPL&DestLinkType=FullRecord&UT=WOS:000499238000039
https://openrepository.mephi.ru/handle/123456789/18958