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Faraday CupFaraday Cup for Low Current Measurements
Faraday Cup
Manufacturer: DREEBIT GmbH
The Faraday cup is a device for measuring charged particle beam currents and charges in real-time.
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Description
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.
Technical Parameters
Title | Text |
---|---|
Faraday Cup Parameters | |
aperture diameter | 1 mm, 2 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 temperature | 150 °C |
Infrastructural Reqirements | |
vacuum conditions during operation | suitable from 1e-10 mbar up to amtospheric pressure |
Scope of Delivery
- Faraday cup for low-current measurement incl. screws for wire attachment
Optional Equipment
- linear vacuum feedthrough with manual or motor-driven positioning system
- vacuum chamber
- electrical feedthroughs and connection of cup inside a vacuum chamber via Kapton insulated wire
- picoampere meter or electrometer for measurement of charged particle current or pulses
- control and measurement hardware and software
Downloads
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ProductSheet_FaradayCup.pdf (564.87 KiB)