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A high flux,liquid-helium cooled source of metastable rare gas atoms

Authors:	JA?Swansson Email author" target="_blank">KGH?Baldwin Email author MD?Hoogerland AG?Truscott SJ?Buckman

Institution:	(1) Research School of Physical Sciences and Engineering, The Australian National University, Canberra, ACT, 0200, Australia;(2) Australian Research Council Centre of Excellence for Quantum-Atom Optics, ACT, Canberra, Australia;(3) Department of Physics, University of Auckland, Private Bag, 92019 Auckland, New Zealand

Abstract:	We have developed a novel, high flux source of metastable rare gas atoms (helium, neon and argon) that uses liquid helium cooling to reduce the initial atomic velocity. Fluxes exceeding 10¹⁴ atoms/ster/s with He and Ne were obtained. With average velocities of 600 m/s for He and 300 m/s for Ne and Ar, this source will enable simpler, more compact beam lines for loading magneto-optical traps. PACS 34.80.Dp; 39.10.+j; 39.25.+k

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