A Sample of the Results of the First SOFIA Experiment

The first SOFIA experiment (Studies On FIssion with Aladin) was performed in August 2012 at GSI. The fission of several neutron-deficient actinides and pre-actinides was induced in flight at 700 A MeV by electromagnetic excitation. The use of inverse kinematics provides both high detection and high geometrical efficiency. The complete identification of both fission fragments in coincidence (nuclear charge and mass) was obtained over a broad range of fissioning nuclei. After a short introduction and descrip- tion of the experimental setup, the quality of the charge and mass separation is presented, followed by some results concerning the Coulex-induced fission of 234U and 235U.