MT26 Abstracts, Timetable and Presentations

Tue-Mo-Po2.04-04 [18]: Three-Dimensional Design of Massless Septum Magnets for High Intensity Synchrotrons with Slow Beam Extraction

24 Sept 2019, 08:45

2h

Level 2 Posters 1

Poster Presentation Tue-Mo-Po2.04 - Resistive Magnets for Accelerator and Fusion I

Speaker

Yasuhiro Fuwa (Kyoto University)

Description

In high intensity circular accelerators such as Rapid Cycling Synchrotrons (RCS) and Fixed Field Alternating-gradient (FFA) synchrotron, maximum beam intensity is limited by beam loss. Suppression of beam scatterings occurred in beam extraction system, especially in septum magnets, is one of the key issues to achieve low beam loss rate. Application of massless septum may be a promising way to overcome the beam loss problem. In this study, three dimensional design of the massless septum magnets for RCS and FFA is investigated. Utilizing 3D simulations, effects of nonlinear field distribution on extracted beam are analyzed and requirement of the massless septum magnets will be discussed.