Fig. 2From: Optimal beam sources for Stark decelerators in collision experiments: a tutorial reviewSchematic representation of the longitudinal phase-space acceptance of a Stark decelerator for guiding (ϕ 0=0°, left) and deceleration (ϕ 0=70°, right). The area in phase-space that is occupied by the molecular beam pulse at the entrance of the decelerator is schematically represented by the tilted red ellipseBack to article page