Slowing dynamics of a supersonic beam, simulation and experiments
Date of Issue2015-08-14
School of Physical and Mathematical Sciences
In this paper we present numerical and experimental methods aimed to study the evolution in space and time of a slowed supersonic beam. These generic methods are applicable to a variety of beams and decelerating techniques. The present implemented experimental set up is based upon Zeeman slowing of a metastable atom beam. The detection uses a channel-electron multiplier and a delay-line detector allowing time-of-flight analysis and numerical image reconstruction. In particular a depopulation effect at the centre of the beam is evidenced. In view of quantifying the slowing process, Monte Carlo calculations based on rate-equations are detailed.
Physics & Applied Physics
The European Physical Journal - Applied Physics
© 2015 EDP Sciences. This paper was published in The European Physical Journal - Applied Physics and is made available as an electronic reprint (preprint) with permission of EDP Sciences. The published version is available at: [http://dx.doi.org/10.1051/epjap/2015150266]. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law.