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- W2980933073 abstract "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." @default.
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- W2980933073 date "2019-11-01" @default.
- W2980933073 modified "2023-09-24" @default.
- W2980933073 title "Field Emission From Nanostructured Tendril Bundles" @default.
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- W2980933073 doi "https://doi.org/10.1109/tps.2019.2942725" @default.
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