Zeeman deceleration of H and D

Journal Article · Wed Aug 15 04:00:00 EDT 2007 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.76.023412· OSTI ID:21015992

Hogan, S D; Sprecher, D; Andrist, M; Vanhaecke, N; Merkt, F ^[1]

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1. Laboratorium fuer Physikalische Chemie, ETH Zuerich, CH-8093 (Switzerland)

Hydrogen and deuterium atoms in supersonic jet expansions have been decelerated using a multistage Zeeman decelerator. The properties of the decelerator have been completely characterized in a series of experiments in which (i) the initial longitudinal velocities of the decelerated atoms (ii) the maximum magnetic field strength, and (iii) the duration of zero-field intervals between successive field pulses in neighboring deceleration stages were systematically varied. Experiments using Ar and Kr as carrier gases have clearly revealed that the H atoms are located at the surface of the jet expansion cone in each case. Comparison of the results of these experiments with numerical simulations of the atom trajectories through the decelerator provides a full description of the phase-space distribution of the decelerated atoms. Evidence is presented of transverse guiding of the beam and of a partial redistribution of the H atom population among the M{sub F} components of the F=1 manifold at times when the magnetic field strength approaches zero.

• OSTI ID: 21015992
• Journal Information: Physical Review. A, Journal Name: Physical Review. A Journal Issue: 2 Vol. 76; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
ACCELERATION
ARGON
ATOMS
BEAMS
CARRIERS
COMPARATIVE EVALUATIONS
DEUTERIUM
DISTRIBUTION
GASES
HYDROGEN
KRYPTON
MAGNETIC FIELDS
MULTI-PHOTON PROCESSES
NUMERICAL ANALYSIS
PHASE SPACE
PHOTON-ATOM COLLISIONS
PULSES
SIMULATION
SURFACES
ZEEMAN EFFECT