| Article | |
| Title | Modeling and implementation of vertical excursion FFA in the Zgoubi ray-tracing code |
| Author(s) | Vanwelde, Marion (U. Brussels (main)) ; Hernalsteens, Cédric (U. Brussels (main) ; CERN) ; Méot, François (BNL, C-A Dept.) ; Pauly, Nicolas (U. Brussels (main)) ; Tesse, Robin (U. Brussels (main)) |
| Publication | 2023 |
| Number of pages | 10 |
| In: | Nucl. Instrum. Methods Phys. Res., A 1047 (2023) 167829 |
| DOI | 10.1016/j.nima.2022.167829 (publication) |
| Subject category | Detectors and Experimental Techniques |
| Abstract | Vertical Fixed Field Accelerators (vFFAs) feature complex and highly non-linear magnetic fields, which require simulation codes allowing step-wise particle tracking. Methods to model the 3D magnetic field of scaling vFFAs have been developed in the ray-tracing code Zgoubi. The field modeling and particle tracking methods include the field non-linearities, the fringe fields, and the field superposition of neighboring magnets. The procedure implements the vFFA analytical field expressions, allowing design studies and parameter optimizations using the Zgoubi built-in fit method. The vFFA procedure has been applied to a ten-fold symmetry ring with a triplet focusing structure designed to accelerate protons from 3 MeV to 12 MeV and studied under the ISIS-II proton driver prototype project. Results from particle tracking in externally generated 3D semi-analytical field maps and the developed vFFA analytical model are shown to be in excellent agreement. |
| Copyright/License | publication: © 2022-2024 The Authors (License: CC-BY-4.0) |
Corresponding record in: Inspire
Element opprettet 2022-12-13, sist endret 2023-03-31
