| Autor: |
Debernardi, N., Reijnders, M. P., Engelen, W. J., Clevis, T. T. J., Mutsaers, P. H. A., Luiten, O. J., Vredenbregt, E. J. D. |
| Předmět: |
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| Zdroj: |
Journal of Applied Physics; Jul2011, Vol. 110 Issue 2, p024501, 7p |
| Abstrakt: |
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 [variant_greek_epsilon]r = 1.4 × 10-8 m rad [formula] are determined. Space charge effects that may affect the measurement are also discussed. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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