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Frans Michel Penning

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Frans Michel Penning
Born12 September, 1894
Gorinchem, Netherlands
Died6 December, 1953
Utrecht, Netherlands
Known forPenning ionization, Penning trap
Scientific career
FieldsPhysics, gas phase ion chemistry

Frans Michel Penning (12 September 1894, Gorinchem – 6 December 1953, Utrecht) was a Dutch physicist. The Penning trap, used for storing charged particles, as well as the Penning mixture and Penning effect of gas discharge tubes are named after him. He also invented a type of cold cathode vacuum gauge known as Penning gauge.

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