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Buffer-gas loading of atoms and molecules into a magnetic trap

John M. Doyle, Bretislav Friedrich, Jinha Kim, and David Patterson
Phys. Rev. A 52, R2515(R) – Published 1 October 1995
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Abstract

We describe a method for loading paramagnetic atoms or molecules into a magnetic trap. A He3 buffer gas is employed to thermalize atoms or molecules to a temperature of approximately 240 mK, lower than the depth of the trap. A model is described that indicates an initial loading density of approximately 1013 cm3. Once loading has taken place the buffer gas is removed by cryopumping. Evaporative cooling can then be applied to further lower the temperature and increase the density of the trapped sample.

  • Received 6 June 1995

DOI:https://doi.org/10.1103/PhysRevA.52.R2515

©1995 American Physical Society

Authors & Affiliations

John M. Doyle1, Bretislav Friedrich2, Jinha Kim1, and David Patterson1

  • 1Department of Physics, Lyman Laboratory, Harvard University, Cambridge, Massachusetts 02138
  • 2Department of Chemistry, 12 Oxford Street, Harvard University, Cambridge, Massachusetts 02138

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Vol. 52, Iss. 4 — October 1995

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