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Title: Measurement of the temperature of an ultracold ion source using time-dependent electric fields

Abstract

We report on a measurement of the characteristic temperature of an ultracold rubidium ion source, in which a cloud of laser-cooled atoms is converted to ions by photo-ionization. Extracted ion pulses are focused on a detector with a pulsed-field technique. The resulting experimental spot sizes are compared to particle-tracking simulations, from which an effective source temperature T = (3 {+-} 2) mK and the corresponding transversal reduced emittance {epsilon}{sub r} = 1.4 x 10{sup -8} m rad {radical}(eV) are determined. Space charge effects that may affect the measurement are also discussed.

Authors:
; ; ; ; ; ;  [1]
  1. Department of Applied Physics, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven (Netherlands)
Publication Date:
OSTI Identifier:
22036668
Resource Type:
Journal Article
Journal Name:
Journal of Applied Physics
Additional Journal Information:
Journal Volume: 110; Journal Issue: 2; Other Information: (c) 2011 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0021-8979
Country of Publication:
United States
Language:
English
Subject:
74 ATOMIC AND MOLECULAR PHYSICS; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ATOMS; ELECTRIC FIELDS; EV RANGE; ION BEAMS; ION SOURCES; LASER RADIATION; PHOTOIONIZATION; PHOTON-ATOM COLLISIONS; PULSES; RUBIDIUM IONS; SPACE CHARGE; TEMPERATURE MEASUREMENT; TIME DEPENDENCE

Citation Formats

Debernardi, N., Reijnders, M. P., Engelen, W. J., Clevis, T. T. J., Mutsaers, P. H. A., Luiten, O. J., and Vredenbregt, E. J. D. Measurement of the temperature of an ultracold ion source using time-dependent electric fields. United States: N. p., 2011. Web. doi:10.1063/1.3605555.
Debernardi, N., Reijnders, M. P., Engelen, W. J., Clevis, T. T. J., Mutsaers, P. H. A., Luiten, O. J., & Vredenbregt, E. J. D. Measurement of the temperature of an ultracold ion source using time-dependent electric fields. United States. doi:10.1063/1.3605555.
Debernardi, N., Reijnders, M. P., Engelen, W. J., Clevis, T. T. J., Mutsaers, P. H. A., Luiten, O. J., and Vredenbregt, E. J. D. Fri . "Measurement of the temperature of an ultracold ion source using time-dependent electric fields". United States. doi:10.1063/1.3605555.
@article{osti_22036668,
title = {Measurement of the temperature of an ultracold ion source using time-dependent electric fields},
author = {Debernardi, N. and Reijnders, M. P. and Engelen, W. J. and Clevis, T. T. J. and Mutsaers, P. H. A. and Luiten, O. J. and Vredenbregt, E. J. D.},
abstractNote = {We report on a measurement of the characteristic temperature of an ultracold rubidium ion source, in which a cloud of laser-cooled atoms is converted to ions by photo-ionization. Extracted ion pulses are focused on a detector with a pulsed-field technique. The resulting experimental spot sizes are compared to particle-tracking simulations, from which an effective source temperature T = (3 {+-} 2) mK and the corresponding transversal reduced emittance {epsilon}{sub r} = 1.4 x 10{sup -8} m rad {radical}(eV) are determined. Space charge effects that may affect the measurement are also discussed.},
doi = {10.1063/1.3605555},
journal = {Journal of Applied Physics},
issn = {0021-8979},
number = 2,
volume = 110,
place = {United States},
year = {2011},
month = {7}
}