Fig. 10From: A detailed account of the measurements of cold collisions in a molecular synchrotronTransverse position distribution of simulated argon atoms at the longitudinal position where the atoms first collide with the stored ammonia molecules. The horizontal lines reflect the cut-off of the electrodes that make up the hexapole element through which the argon beam first enters the synchrotron. The circle approximates the circular cut-off due to the second skimmer. The resulting flattened circle shows the transverse shape of the argon beam that is used in trajectory simulations of ammonia moleculesBack to article page