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bubble chamber

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bubble chamber

In physics, a device for observing the nature and movement of atomic particles, and their interaction with radiation. It is a vessel filled with a superheated liquid through which ionizing particles move. The paths of these particles are shown by strings of bubbles, which can be photographed and studied. By using a pressurized liquid medium instead of a gas, it overcomes drawbacks inherent in the earlier cloud chamber. It was invented by US physicist Donald Glaser in 1952. See particle detector.



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Such an arrangement, which ended reliance on photographed particle tracks in bubble chambers and inaugurated the age of electronic particle detection, allowed physicists to pinpoint individual particle trajectories with improved precision while handling hundreds of thousands of such events per second.
Electron chemistry, detector physics by Peterson, Ivars / Science News
Simply open the top of the Bubble Machine and pour the Gazillion Bubble solution into the bubble chamber, close the top and switch the machine to on.
Funrise 2005 Toys for the Holidays by Business Wire
Glaser, while developing the bubble chamber for detecting subatomic particles at the University of Michigan back in the 1950s, used to sit for hors in the student union staring into a glass of beer, looking for tracks of bubbles left by mu mesons -- energetic particles created in violent encounters between cosmic rays and particles in the atmosphere.
Particle beams, bubbles and beer by Science News
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