Sullivan, JamesJones, ACaradonna, PMakochekanwa, CBuckman, Stephen2015-11-232015-11-230034-6748http://hdl.handle.net/1885/16620An instrument has been designed and constructed to provide new insights into fundamental, low energy positron scattering processes. The design is based on the Surko trap system and produces a pulsed positron beam with an energy resolution of as good as 54 meV. The design and operation of the apparatus is explained, while the first experimental results from this apparatus have been demonstrated in recent publications.The authors would like to acknowledge the Australian Research Council for funding support, through the Centre of Excellence program, as well as the LIEF and Discovery funding programs.http://www.sherpa.ac.uk/romeo/issn/0034-6748..."Publishers version/PDF may be used on author's personal website, institutional website or institutional repository" from SHERPA/RoMEO site (as at 23/11/15). Copyright 2008 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Review of Scientific Instruments and may be found at https://doi.org/10.1063/1.3030774Keywords: Design and operations; Energy resolutions; Low energies; Molecular scatterings; Positron beams; Positron scatterings; Positron traps; Positrons2008-11-2110.1063/1.30307742016-02-24