Frans Michel Penning

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Frans Michel Penning
Born 12 September 1894
Gorinchem, Netherlands
Died 6 December 1953
Utrecht, Netherlands
Fields Physics, gas phase ion chemistry
Known for Penning ionization, Penning trap

Frans Michel Penning (12 September 1894 – 6 December 1953) 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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