Faraday cup [SEP] named after
Faraday cup
A Faraday cup is a metal (conductive) cup designed to catch charged particles in vacuum. The resulting current can be measured and used to determine the number of ions or electrons hitting the cup. The Faraday cup is named after Michael Faraday who first theorized ions around 1830.
It is installed in Space probes (Voyager 1, & 2, Parker Solar Probe, etc), or used in Mass spectrometry, and others.
Principle of operation.
When a beam or packet of ions hits
, and inside there hangs a portrait, both in Faraday's honour. An eight-story building at the University of Edinburgh's science & engineering campus is named for Faraday, as is a recently built hall of accommodation at Brunel University, the main engineering building at Swansea University, and the instructional and experimental physics building at Northern Illinois University. The former UK Faraday Station in Antarctica was named after him.
Streets named for Faraday can be found in many British cities (e.g., London, Fife, Swindon, Basingstoke