Slow beams of atomic hydrogen by multistage Zeeman deceleration
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2008-04
Publication Type
Journal Article
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yes
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Abstract
Hydrogen atoms seeded in a supersonic expansion of Kr have been decelerated from an initial velocity of 435 m s−1 to 107 m s−1 in a multistage Zeeman decelerator. The operation of the decelerator has been fully quantified by numerical particle trajectory simulations and independent measurements of the velocity distribution by ion time-of-flight mass spectrometry following photoionization of the decelerated atoms. The velocity distributions of the decelerated atom clouds have a half-width at half-maximum of 25 ± 12 m s−1 corresponding to a temperature of ~30 mK. These velocities and temperatures are sufficiently low that magnetic trapping of the atoms can be envisaged.
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published
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41 (8)
Pages / Article No.
81005
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IOP Publishing
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03449 - Merkt, Frédéric / Merkt, Frédéric