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Towards the study of cold chemical reactions using Zeeman decelerated supersonic beams
, 2016 Zeeman deceleration is an experimental technique which allows for the manipulation of open-shell atoms and molecules in a supersonic beam thus producing mK-cold, velocity-tunable beams of particles in selected quantum states. The method relies on the Zeeman interaction between paramagnetic particles and time-varying, inhomogeneous magnetic fields ...
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Zeeman deceleration of H and D
Physical Review A, 2007Hydrogen 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
S. D. Hogan +4 more
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Multistage Zeeman deceleration of hydrogen atoms
Physical Review A, 2007The deceleration of beams of neutral particles possessing an electron spin with time-dependent inhomogeneous magnetic fields is demonstrated experimentally. Half the kinetic energy of a velocity-selected part of a pulsed supersonic beam of hydrogen atoms in the ground state is removed using six pulsed magnetic field stages.
Nicolas Vanhaecke +4 more
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Zeeman deceleration of metastable nitrogen atoms
Journal of Physics B: Atomic, Molecular and Optical Physics, 2016In a proof-of-principle experiment, we show that the longitudinal velocity of a supersonic beam of nitrogen atoms in the metastable 2D state can be decreased from 460 to 410 m s−1 using a 12-stage Zeeman decelerator. The experimental results are in good agreement with three-dimensional numerical particle trajectory simulations.
Katrin Dulitz +3 more
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Slow beams of atomic hydrogen by multistage Zeeman deceleration
Journal of Physics B: Atomic, Molecular and Optical Physics, 2008Hydrogen 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 ...
S D Hogan +4 more
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Multistage Zeeman deceleration of NH $X\,^3��^-$ radicals
2018We report on the Zeeman deceleration of ground-state NH radicals, using a decelerator that consists of 100 pulsed solenoids and 100 permanent hexapoles. Packets of state-selected NH ($X\,^3 ^-$, N=0, J=1) radicals are produced with final velocities ranging between 510 m/s and 150 m/s.
Plomp, Vikram +3 more
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STARK AND ZEEMAN DECELERATION OF NEUTRAL ATOMS AND MOLECULES
Laser Spectroscopy, 2008Argon and hydrogen atoms excited to Rydberg Stark states in supersonic expansions have been decelerated using inhomogeneous electric fields. In the case of hydrogen, the atoms have been decelerated from an initial velocity of 700 m/s to zero velocity in the lab frame using time-dependent inhomogeneous electric fields and subsequently stored in two- and
S. D. HOGAN +8 more
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Adiabatic following conditions for the deceleration of atoms with the Zeeman tuning technique
Optics Communications, 1990Abstract We present a study of the decelaration of atoms with the Zeeman tuning technique which allows us to investigate the conditions for the adiabatic following of atoms in an inhomogeneous magnetic field. The atomic motion is described in an accelerated frame of reference and two possible solutions are found for the atomic velocity, one being ...
R.J. Napolitano +2 more
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Design of a ring-shaped traveling-wave Zeeman decelerator for both light and heavy molecules
Physical Review A, 2023Yabing Ji, Yang Liu, Tao Yang
exaly