Applied Physics B

, Volume 69, Issue 3, pp 217–222

Efficient magnetic guiding and deflection of atomic beams with moderate velocities

  • A. Goepfert
  • F. Lison
  • R. Schütze
  • R. Wynands
  • D. Haubrich
  • D. Meschede
Regular paper

Abstract.

We have studied guidance and deflection of a beam of cesium atoms by a strong toroidal magnetic quadrupole field. The beam guide is made from permanent magnets sustaining a radial field gradient of 2.8 T/cm. Atoms with moderate longitudinal velocities ranging from 30 m/s to 70 m/s were inserted across the 10-mm-diameter aperture of a 24.5° arc with radius 300 mm. We have measured transmission and beam divergence and find good agreement with ray-tracing calculations and analytical estimates. The magnetic beam guide allows for 100% transmission of heavy atoms over large angles.

PACS: 03.75Be; 32.80Pj; 07.55.w 

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Copyright information

© Springer-Verlag 1999

Authors and Affiliations

  • A. Goepfert
    • 1
  • F. Lison
    • 1
  • R. Schütze
    • 1
  • R. Wynands
    • 1
  • D. Haubrich
    • 1
  • D. Meschede
    • 1
  1. 1.Institut für Angewandte Physik, Rheinische Friedrich-Wilhelms-Universität Bonn, Wegelerstr. 8, D-53115 Bonn, Germany (Fax: +49-228/733-474, E-mail: sek@iap.uni-bonn.de)DE

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