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Ion pump (physics)
An ion getter pump is a vacuum pump that works by ionizing the residual gases in vacuum so that they can be adsorbed to special material on the walls of the pump, a process known as gettering. Thus, it is very different from a rotary pump or a turbomolecular pump because it does not have any moving parts. Ion pumps can operate in the range of 10−3 to 10−12 torr.
Additional recommended knowledge
An ion getter pump acts similarly to a cold cathode ion gauge, allowing the residual gas pressure to be measured by determining the current through the pump.
|This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Ion_pump_(physics)". A list of authors is available in Wikipedia.|