NUCLEON TRANSFER REACTION STUDIES AT GANIL USING RADIOACTIVE NUCLEAR BEAMS

A series of experiments with both stable and radioactive nuclear beams were very recently performed at GANIL using, for the first time, the trio of detectors: TIARA, VAMOS and EXOGAM. Such a combination of devices provides an outstanding opportunity to study single-particle structure of exotic nuclei via the well known technique of nucleon transfer reactions. TIARA is a very compact array of position sensitive silicon strip detectors (400 μm thick) covering ~ 90 % of 4π and which is designed for the study of nucleon transfer reactions in inverse kinematics using radioactive beams. Particle identification is made using the kinematic correlation between the angle and deposited energy of the target-like particle measured in coincidence with the beam-like particle recorded in the high acceptance and high energy resolution spectrometer VAMOS. An array of four segmented clover EXOGAM Ge detectors surrounding TIARA is also used to measure coincident gamma-rays and to provide good energy resolution for final excited states. A detailed description of the setup and the status of the analysis for the reaction 24Ne + d at 10 MeV/nucleon will be described. Simulations of the entire TIARA system undertaken with the code GEANT4 will be also discussed