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. Author manuscript; available in PMC: 2016 May 27.
Published in final edited form as: Appl Phys Rev. 2016 Mar 24;3(1):011302. doi: 10.1063/1.4944491

FIG. 8.

FIG. 8

Magneto-optical trap ion source. A cloud of cold neutral atoms is held in a magneto-optical trap and photoionized in the presence of an electric field. Typically, the ionization laser is tuned from the excited state, which is populated by the laser cooling lasers, to the ionization limit.