The Faraday Cup is a device for measuring charged particle beam currents and charges in real-time. The measurement electrode is electrically insulated inside the cup housing and has to be connected to an electrical vacuum feedthrough by a Kapton insulated wire. The cup housing itself can also be mounted onto an electrically insulating holder in case the current on the housing is supposed to be recorded. Furthermore, the cup setup includes a suppressor electrode to compensate secondary electron emission from the cup surfaces. The cup is made exclusively from materials suitable for ultra high vacuum conditions down to 1e-10 mbar.
Faraday Cup Parameters | |
---|---|
aperture diameter | 1 mm, 2 mm, 5 mm, or customer-specific |
recommended supressor voltage | 50 V |
max. beam power without additional cooling | 20 mW |
General Parameters | |
dimensions (length x width x height) | 34 mm x 34 mm x 55 mm |
max. bakeout temperatrue | 150°C |
Infrastructural Requirements | |
vacuum conditions during operation | suitable from 1e-10 mbar up to atmospheric pressure |
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