Cloud chamber particle tracks

Videonummer 11936517
Close-up of particle tracks in a cloud chamber. The central rod contains a sample of radioactive polonium-210, an alpha particle emitter. The surrounding chamber contains a supersaturated vapour. The passage of emitted particles of ionising radiation ionises the vapour, and the resulting ions act as nuclei for condensation, making the tracks visible as streaks of cloud. The cloud chamber was invented in 1911, and was an important tool in particle physics until it was superseded by the bubble chamber in the 1950s.
Lizenzart: Lizenzpflichtig
Credit: Science Photo Library / RHYS LEWIS & MINH TAN PHAM, AHS, DECD, UNISA
Modell-Rechte: nicht erforderlich
Länge: 30 Sekunden
Seitenverhältnis: 16:9
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