Space Charge 2026, 7th ICFA BD Mini-workshop

Effects of space charge near transition energy of the CERN PS

1 Oct 2026, 11:05

15m

Denys Wilkinson Building, Dennis Sciama Lecture Theatre (Oxford University, Physics Department)

C-2. Instabilities and Space Charge C

Speaker

Miltiadis Bozatzis (Goethe University Frankfurt (DE))

Description

The CERN Proton Synchrotron (PS) accelerates proton and ion beams over such an energy range that the transition energy is crossed in normal operation. Recent studies, motivated by the growing demand for high‑intensity proton beams for fixed‑target experiments, have revealed potential operational limitations in this region. The observed dependence of beam losses and transverse mean‑position growth on beam intensity suggests a significant contribution from collective effects. In this study, we use both simulations and measurements to investigate the influence on transverse stability, of different machine and beam configurations around transition energy, as well as the interplay between space-charge and impedance effects.