LINAC2026 - 33rd Linear Accelerator Conference

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

TUPO014

18 Aug 2026, 16:00

2h

1F Exhibition Hall (Daejeon Convention Center)

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