Č. Zupančič Created 2026-10-18 Updated 2026-11-05
Coauthored tests of multiwire proportional chambers in which wires spaced apart operated as independent proportional counters, enabling electronic localization of charged-particle tracks.[ref]
The Use of Multiwire Proportional Counters to Select and Localize Charged Particles by Georges Charpak and others. Abstract: independent wires at 0.1 cm separation
Georges Charpak Created 2026-10-18 Updated 2026-11-05
Georges Charpak developed the multiwire proportional chamber, replacing repeated photographic recording with electronic measurements of charged-particle passages. Ionization electrons drift through a gas toward thin wires; the strong local electric field produces avalanches and readable pulses. Knowing which wires respond supplies spatial information, while the electrical output permits rapid processing of many events. This connects microscopic ionization with the practical rate and position resolution of a particle detector.[ref]
The Use of Multiwire Proportional Counters to Select and Localize Charged Particles by Georges Charpak and others. 1968, multiwire counter construction, localization and proportional response
A physicist who developed electronic particle detectors at CERN.[ref]
Professional profile of Georges Charpak. Independent professional identity
Portrait of Georges Charpak
. Photographe de la Ville de Saint-Dié-des-Vosges, dans le cadre de sa mission ; scan par Ji-Elle. CC BY-SA 4.0, via Wikimedia Commons. Source. J. Favier Created 2026-10-18 Updated 2026-11-05
Coauthored tests of multiwire proportional chambers in which wires spaced apart operated as independent proportional counters, enabling electronic localization of charged-particle tracks.[ref]
The Use of Multiwire Proportional Counters to Select and Localize Charged Particles by Georges Charpak and others. Abstract: independent wires at 0.1 cm separation
Multiwire proportional chamber Created 2026-10-18 Updated 2026-10-20
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.
R. Bouclier Created 2026-10-18 Updated 2026-11-05
Coauthored tests of multiwire proportional chambers in which wires spaced apart operated as independent proportional counters, enabling electronic localization of charged-particle tracks.[ref]
The Use of Multiwire Proportional Counters to Select and Localize Charged Particles by Georges Charpak and others. Abstract: independent wires at 0.1 cm separation
T. Bressani Created 2026-10-18 Updated 2026-11-05
Coauthored tests of multiwire proportional chambers in which wires spaced apart operated as independent proportional counters, enabling electronic localization of charged-particle tracks.[ref]
The Use of Multiwire Proportional Counters to Select and Localize Charged Particles by Georges Charpak and others. Abstract: independent wires at 0.1 cm separation

