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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. 11.

FIG. 11

Energy spread (one standard deviation) σU of 87Rb+ pulses from a photoionized MOT as a function of acceleration voltage U for five different pulse charges, showing energy spreads as low as 0.02 eV. Dots are experimental data, solid lines are calculations [reprinted with permission from Ref. 151, M.P. Reijnders, P.A. van Kruisbergen, G. Taban, S.B. van der Geer, P.H.A. Mutsaers, E.J.D. Vredenbregt, and O.J. Luiten, Phys. Rev. Lett. 102, 034802 (2009)].