title: Small-angle approximation in the description of radiative collective effects within an ultrarelativistic electron bunch.
abstract: The problem of the evaluation of radiative collective effects accompanying accelerated motion of a short ultrarelativistic electron bunch in vacuum is considered within the framework of the small-angle approximation; second order expansion in the transverse velocity of electrons is performed in order to obtain an analytical expression for energy spread within the bunch. Comparison with earlier results by other authors shows good agreement.
authors.affiliation: Department of Applied Physics, Technische Universiteit Eindhoven, PO Box 513, 5600 MB Eindhoven, The Netherlands. g.a.geloni@tue.nl
authors.forename: G
authors.initials: G
authors.lastname: Geloni
authors.forename: V
authors.initials: V
authors.lastname: Goloviznin
authors.forename: J
authors.initials: J
authors.lastname: Botman
authors.forename: M
authors.initials: M
authors.lastname: van der Wiel