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Joined 2026-09-21 Message
Incoming links: Multiwire proportional chamber
Multiwire proportional chamber 2026-10-18
A multiwire proportional chamber is a proportional counter: parallel anode wires between cathodes in a gas. Charged particle ionization frees Electrons; an electric field drives them toward wires, triggering an electron avalanche read by electronic amplifiers.[ref]
Opposite polarities identify the avalanche wire. Positive ion motion dominates integrated signal; detection precedes complete collection. Calibrated Electron travel times enable drift chambers.[ref]
Nobel Prize in Physics in 1992 2026-10-18
Awarded to Georges Charpak for inventing and developing particle detectors, especially the multiwire proportional chamber.[ref]
The Nobel Prize in Physics 1992 by Nobel Prize Outreach. Official 14 October 1992 award decision names Georges Charpak alone; invention and development of particle detectors, particularly the multiwire proportional chamber.