IPAC'25 - the 16th International Particle Accelerator Conference

No parametric instabilities in actual linear accelerators except the envelope instability

TUAN2

3 Jun 2025, 09:50

20m

Hall 201 (TICC)

Contributed Oral Presentation MC5.D08 High Intensity in Linear Accelerators Space Charge, Halos TUAN :Beam Dynamics and EM Fields (Contributed)

Speaker

Dong-O Jeon (Institute for Basic Science)

Description

Our studies indicate that parametric instabilities except the envelope instability are unlikely to be observed in actual linear accelerators unless waterbag or KV distributions are generated. Furthermore our studies and previous literatures indicate the dominance of particle resonances over parametric instabilities in high-intensity linear accelerators. Any counter evidence has not been found yet. We propose a way to overcome the previous design rule to avoid the zero-current phase advance > 90° for the high-intensity linac.

Funding Agency

This work was supported by the Institute for Basic Science (IBS-I001-D1).