Phys. Rev. ST Accel. Beams 11, 050102 (2008) [8 pages]

Design and validation of an accelerator for an ultracold electron source

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G. Taban1, M. P. Reijnders1, S. C. Bell2, S. B. van der Geer1, O. J. Luiten1, and E. J. D. Vredenbregt1 *
1Department of Applied Physics, Eindhoven University of Technology, P.O. Box 513, 5600 MB, Eindhoven, The Netherlands
2Centre of Excellence for Coherent X-Ray Science, The University of Melbourne, Victoria 3010, Australia

Received 11 January 2008; published 7 May 2008

We describe here a specially designed accelerator structure and a pulsed power supply that are essential parts of a high brightness cold atoms-based electron source. The accelerator structure allows a magneto-optical atom trap to be operated inside of it, and also transmits subnanosecond electric field pulses. The power supply produces high voltage pulses up to 30 kV, with a rise time of up to 30 ns. The resulting electric field inside the structure is characterized with an electro-optic measurement and with an ion time-of-flight experiment. Simulations predict that 100 fC electron bunches, generated from trapped atoms inside the structure, reach an emittance of 0.04 mm mrad and a bunch length of 80 ps.


©2008 The American Physical Society

URL: http://link.aps.org/doi/10.1103/PhysRevSTAB.11.050102
DOI: 10.1103/PhysRevSTAB.11.050102
PACS: 67.85.−d, 29.20.Ba

* E.J.D.Vredenbregt@tue.nl

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