Space Charge 2026, 7th ICFA BD Mini-workshop

Impacts of Tune Asymmetry on the Space Charge Limit in High Intensity Circular Accelerators

30 Sept 2026, 11:50

15m

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

B-4. High-Intensity Ring Design B

Speaker

Joshua Appleby (University of Oxford)

Description

In the design of future accelerators that push the high intensity frontier, such as ISIS-II, an outstanding question remains on how the choice of bare tune affects the space charge limit. As the bare tunes reflect the transverse focusing of each plane, different accelerator types, with different focusing schemes, such as synchrotrons or fixed-field alternating gradient accelerators (FFA’s), may be better suited for operations in different regions of tune space. Investigating these tune regions, and the subsequent transverse beam shapes, will alter the space charge tune shift footprint, potentially opening tune space where higher intensities can be reached.