Publication: Buffer-gas loading of atoms and molecules into a magnetic trap
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Date
1995
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American Physical Society
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Doyle, John M., Bretislav Friedrich, Jinha Kim, and David Patterson. 1995. Buffer-gas loading of atoms and molecules into a magnetic trap. Physical Review A 52(4): R2515-2518.
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Abstract
We describe a method for loading paramagnetic atoms or molecules into a magnetic trap. A <sup>3</sup>He 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 10<sup>13</sup> cm<sup>-3</sup>. 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.
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