spark chamber Hear it!

spark chamber definition

spark chamber

any of several devices for detecting charged subatomic particles, decay products, rays, etc., consisting usually of a large group of closely spaced, oppositely charged metal plates between which sparks will jump through an inert gas, as neon, along the ionized path created by the passage of radiation

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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