The SISSI project : an intense secondary ion source using superconducting solenoid lenses

A. Joubert (1) , E. Baron (1) , C. Grunberg (1) , J.D. Larson , W. Mittig (1) , F. Ripouteau (1)

1 GANIL - Grand Accélérateur National d'Ions Lourds

In order to make a better use of the higher beam intensities soon available at GANIL, a proposal called SISSI was presented in 1989. It consists of a set of two superconducting solenoid lenses of very short focal length (0.6 m). The fist solenoid is used to sharply focus the incoming beam on a fast moving target. The second increases the angular acceptance of the beam line downstream the target for charged reaction products. Calculations show that from a 0.4-mm-diameter beam spot on the target, an acceptance angle of up to 80 mrad will be reached without significant emittance growth due to aberration effects. Technical aspects of that project are presented

Mots clés: SISSI project; focusing; intense secondary ion source; superconducting solenoid; GANIL; fast moving target; angular acceptance; beam line; aberration effect

Domaines: Physique des accélérateurs [physics.acc-ph]

A. Joubert, E. Baron, C. Grunberg, J.D. Larson, W. Mittig, et al.. The SISSI project : an intense secondary ion source using superconducting solenoid lenses. 1991 IEEE Particle Accelerator Conference, May 1991, San Francisco, United States. pp.594-597, ⟨10.1109/PAC.1991.164374⟩. ⟨in2p3-00192376⟩