Simulation studies of the behavior of positrons in a microtrap with long aspect ratioAlireza Narimannezhad, Christopher J. Baker, Marc H. Weber, Joshah Jennings and Kelvin G. LynnEur. Phys. J. D, 68 11 (2014) 351DOI: https://doi.org/10.1140/epjd/e2014-40700-0