Department of Physics and Astronomy

Seminar: A new space-charge model for high-intensity particle beams

  • Date: 9/14/2017 at 3:15 PM 4:15 PM
  • Location: Ångströmlaboratoriet, Lägerhyddsvägen 1 Å12167
  • Lecturer: Michael Holz, Uppsala University
  • Website
  • Contact person: Elin Bergeås Kuutmann
  • Phone: 018-471 3828
  • Seminarium

PhD student half-time seminar in accelerator physics showing an analytic model for the space-charge effect of particle beams, as well as a presentation of a newly developed simulation code for parameter studies.

Abstract:

In order to probe rare events in life- and material sciences as well as high-energy physics, the intensity of the beam provided by particle accelerators is raised to levels where the self-interaction of the beam particles due to electromagnetic repulsion, the so-called space-charge effect, becomes a dominant factor. To complement the existing simulation methods, we developed a fully analytic and self-consistent space-charge model that is valid for transverse Gaussian beams and include non-linear forces and cross-plane coupling. Based on this model, we developed a simulation code that provides a quick means of parameter studies. In this presentation, I will present the concept of the analytical model and show simulation results of the development of a beam in a test ring. Further, I show examinations of passive spectator particles, revolving around the previously simulated beam core and investigate their dynamic behavior as well as distortions in phase space due to non-linear forces.