The Munich rf-recoil spectrometer

Design and recent applications of the Munich RF-recoil spectrometer are described. This device allows the identification of heavy ion reaction products at O° within a large acceptance angle. Beam projectiles are suppressed by a crossed field radio-frequency velocity selector. Velocity, energy, and energy loss of the recoils of interest are determined by a high resolution time-of-flight measurement and with a multiparameter ionization chamber. The performance of the instrument is demonstrated by describing its application in the search for heavy ion radiative capture, in subcoulomb fusion measurements and in the investigation of high angular momentum states in 27A1.