Design of a multi-harmonic buncher for lince

Continuous beams delivered by the LINCE [1] ECR ions source will be bunched by a multi-harmonic buncher in order to be injected into an RFQ. Its numerical design is reported along with electric field maps and beam dynamics studies carried out with the codes TRACK [2] and GPT [3]. First experiments with multi-harmonic bunchers were carried out in 1970s at Argonne National Lab. (ANL) [4] and it is used in the design of modern accelerator facilities e.g FRIB and Spiral 2

Elastic scattering of 8He + 208Pb at 22 MeV

The dynamics of 8He around the Coulomb barrier is investigated by measuring the energy and angular distribution of the elastic 8He and the 6He and 4He fragment yields in the collision process with a 208Pb target. The experiment was carried out at SPIRAL/GANIL in October 2010. The experimental results will provide information about the relevant reaction mechanisms and the validity of the optical model (OM) when applied to exotic nuclei. In this paper, details of the experimental setup and preliminary results on the elastic scattering for the collision at 22 MeV are presented