The bubble chamber is similar to a cloud chamber in application and basic principle. It is normally made by filling a large cylinder with a liquid heated to just below its boiling point. As particles enter the chamber, a piston suddenly decreases its pressure, and the liquid enters into a superheated, metastable phase. Charged particles create an ionisation track, around which the liquid vaporises, forming microscopic bubbles. Bubble density around a track is proportional to a particle’s energy loss. Bubbles grow in size as the chamber expands, until they are large enough to be seen or photographed. (Wikipedia) Above : Picture of neutrino interaction in the Fermilab 15-foot Bubble Chamber with heavy neonhydrogen liquid mixture taken in April, 1976. Nearly one neutrino interaction per picture is found with the current run targeting 1013 protons at 400 GeV with the wide band - two horn system. Frequently the chamber is flooded with tracks from several neutrino interactions in the same exposure. The Village Crier Vol. 8 No. 18, May 6, 1976 (Source : History.Fnal.gov)

The bubble chamber is similar to a cloud chamber in application and basic principle. It is normally made by filling a large cylinder with a liquid heated to just below its boiling point. As particles enter the chamber, a piston suddenly decreases its pressure, and the liquid enters into a superheated, metastable phase. Charged particles create an ionisation track, around which the liquid vaporises, forming microscopic bubbles. Bubble density around a track is proportional to a particle’s energy loss.

Bubbles grow in size as the chamber expands, until they are large enough to be seen or photographed. (Wikipedia)

Above : Picture of neutrino interaction in the Fermilab 15-foot Bubble Chamber with heavy neonhydrogen liquid mixture taken in April, 1976. Nearly one neutrino interaction per picture is found with the current run targeting 1013 protons at 400 GeV with the wide band - two horn system. Frequently the chamber is flooded with tracks from several neutrino interactions in the same exposure.

The Village Crier Vol. 8 No. 18, May 6, 1976 (Source : History.Fnal.gov)

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