Carbon film in radio frequency surface plasma source with cesiation

Carbon film in radio frequency surface plasma source with cesiation

It is a persistent cesiation in the SNS RF SPS is related to deposition of carbon film on the collar converter. The work function dependence for graphite with alkali deposition has no minimum typical for metals and semiconductors and the final work function is higher. For this reason, the probabilit...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Dudnikov, V., Dudnikov, A.
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Alkali metals
Carbon
Cesium
Converters
Dependence
Deposition
Plasma
Secondary emission
Semiconductors
Work functions
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Beschreibung
Zusammenfassung:It is a persistent cesiation in the SNS RF SPS is related to deposition of carbon film on the collar converter. The work function dependence for graphite with alkali deposition has no minimum typical for metals and semiconductors and the final work function is higher. For this reason, the probability of H- secondary emission from cesiated metal and semiconductors can be higher than from cesiated carbon films but the carbon film maintains cesiation longer and can operate with low cesium consumption.
ISSN:0094-243X
1551-7616
DOI:10.1063/1.5083725