First recorded track by Glaser. Selected frames from 3000 frames/second movie. Times 0, 1/3, 4, 20, 71, and 250 milliseconds. Photograph taken May 10, 1956. Bubble Chamber-82. Donald Arthur Glaser (September 21, 1926 - February 28, 2013) was an American physicist, neurobiologist, and Nobel Prize Physics laureate (1960) for his invention of the Bubble chamber used in subatomic particle physics. A bubble chamber is a vessel filled with a superheated transparent liquid (most often liquid hydrogen) used to detect electrically charged particles moving through it. As particles enter the chamber, a piston suddenly decreases its pressure, and the liquid enters into a superheated, metastable phase. Charged particles create an ionization track, around which the liquid vaporizes, 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. Several cameras are mounted around it, allowing a three-dimensional image of an event to be captured.
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Creative#:
TOP22170524
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達志影像
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RM
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