Author: Barminova, H.Y.
Paper Title Page
TUPPB018 Simulation of Hollow Ion Beam Formation Line 353
 
  • H.Y. Barminova, N.N. Alexeev, A. Golubev, T. Kulevoy, A. Sitnikov, T. Tretyakova
    ITEP, Moscow, Russia
 
  Heavy ion beams can be used for the matter extreme state generation*, and forming line must satisfy to certain strict requirements for beam brightness and focus position. In paper** system was proposed for hollow beam formation in order to generate laboratory plasma with energy deposition in cylindrical target. The system is based on the principle of the beam rotation by means of RF-cavities (so called "wobbler"). The similar system is proposed in ITEP***, where the basic part of line consists of two four-cell cavities and focusing quadrupole triplet. To calculate wobbler and magnetic triplet parameters two codes were used – "Transit", developed in ITEP, and G4Beamline, developed in Muons Inc. The beam was simulated for two kinds of particles – multicharged ions of Со and protons with equivalent energy. A comparative analysis of optical system parameter and beam parameter obtained in both simulations was performed. In condition of focus position restriction and spot geometry required aberrations were shown to be taken into account correctly.
* V. Fortov et al. NIM A 415, p.20 (1998).
** S. Minaev et al. NIM A 620, р.99 (2010).
*** S. Kolesnikov et al. High Pressure Research, vol.30, No 1, p.83 (2010).