The inverse kinematics technique is used at GANIL to produce the so-called in-flight fission. The accelerated fissioning system is excited by a nuclear reaction, and in particular by a nucleon transfer reaction between the beam and the target. Fission fragments are therefore emitted at forward angles in the laboratory frame due to the kinematic boost of the reaction. The VAMOS wide-acceptance magnetic spectrometer is used to identify the mass and nuclear charge of the various fragments, while silicon telescopes are used to characterize the fissioning system by detecting the ejecta emitted by the transfer reaction.
The fission@VAMOS project involves upgrading the silicon detection system used to identify the fissioning system produced by the transfer reaction. The current device is a highly segmented silicon telescope assembly called PISTA. This improves the sensitivity and precision of the fissioning system formation conditions (mass, atomic number, excitation energy).
The subject of this thesis is therefore a detailed multi-parametric study of fission, with a focus on measuring the fission yields of the fissioning system 242Pu (n+241Pu). Finally, a large part of the work will consist of data analysis and interpretation, followed by publication.