12 Foot Liquid Hydrogen Bubble Chamber, ANL
12 foot liquid hydrogen bubble chamber at the AEC's (Atomic Energy Commission) Argonne. 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. The bubble chamber is similar to a cloud chamber, both in application and in 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 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. Argonne National Laboratory is a science and engineering research national laboratory. It was initially formed to carry out Enrico Fermi's work on nuclear reactors as part of the Manhattan Project, and it was designated as the first national laboratory in the on July 1, 1946.
Size: 3077px × 3900px
Photo credit: © Photo Researchers / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: 12, 20th, aec, america, american, anl, argonne, atomic, bubble, bw, century, chamber, commission, department, detection, detector, doe, energy, feet, foot, historic, historical, history, hydrogen, laboratory, liquid, national, particle, physics, research, science, states, united, usa
