Bubble Chamber (IMAGE)

University of Chicago

Bubble Chamber

Caption

Bell jars in the Chicagoland Observatory for Underground Particle Physics consist of a steel vessel that contains the fire-extinguishing liquid iodotrifluoromethane (CF3I). Scientists would expect to see a weakly interacting massive particle leave a single bubble, like the one at right, when it hits the nucleus of an atom in the CF3I molecule. Other types of charged particles would leave multiple bubbles, like the ones at left.

Credit

Fermilab

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News organizations may use this image in connection with reports about the work of Juan Collar and his colleagues.

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