J-PARC Acc. Seminar – Autoresonance for Millisecond-Scale Beam Extraction

Date

2026/07/02(Thu.)13:30〜14:30

Venue

Meeting Room, J-PARC Control Build. + Teams

Speaker

Dr. DING, Xiao

Language

English

URL

Contact

R. Muto (PHS 4587)


This talk introduces an autoresonance-based extraction method forsynchrotrons. Autoresonance is a nonlinear phenomenon in which thebetatron oscillation frequency of particles automatically locks to afrequency-swept excitation under appropriate conditions. By exploitingthis mechanism, particles can be driven to large betatron amplitudeswithin a single frequency sweep, enabling millisecond-scale beamextraction. The seminar covers the motivation, physical mechanism,extraction scheme, theoretical analysis, simulations, and the mainresults of this work.

Release date 2026/06/26 Updated 2026/06/26