LINAC2026 - 33rd Linear Accelerator Conference

No parametric instabilities in actual high-intensity linear accelerators except the envelope instability

Not scheduled

2h

Daejeon Convention Center

Poster Presentation MC1.A01: Beam Dynamics, beam simulations, beam transport Poster Session

Speaker

Dong-O Jeon (Institute for Basic Science)

Description

Parametric instabilities have been long known to the community and studied intensively. However, simulations with the realistic distributions find that no parametric instabilities are manifested except the envelope instability. Moreover, the effect of the envelope instability is less for realistic distribution than Gaussian distribution. Onset of the envelope instability is delayed significantly and the emittance growth is reduced. On the other hand, the effect of the fourth-order particle resonance is more for realistic distributions.