17–22 May 2026
C.I.D
Europe/Zurich timezone

Investigation and Modeling of Intra-beam Scattering Effects in Micro-Bunched Beams

THP5656
21 May 2026, 16:00
2h
C.I.D

C.I.D

Deauville, France
Poster Presentation MC5.D05: Coherent and Incoherent Instabilities Theory, Simulations, Code Development Poster session

Speaker

Ao Liu (ShanghaiTech University)

Description

Intrabeam Scattering (IBS) is a multiple Coulomb scattering phenomenon between charged particles within a beam, leading to emittance growth and consequent degradation of beam quality. Classical theoretical frameworks for IBS, such as the Piwinski and Bjorken-Mtingwa (BM) formalisms, predominantly rely on the assumption of a Gaussian particle distribution. However, in novel accelerator concepts combining storage rings with Free Electron Lasers (FEL), specifically Steady-State Micro-Bunching (SSMB), the primary bunch is modulated into a train of micro-bunches. In such scenarios, the longitudinal particle distribution deviates significantly from the Gaussian assumption, rendering conventional theories potentially inapplicable. This paper presents a comparative study of IBS effects using various theoretical models and Monte Carlo simulations. We propose a modified IBS model specifically tailored to the non-Gaussian phase-space structure of micro-bunches. Furthermore, the simulation results are discussed in the context of upcoming experimental verification plans aimed at validating the proposed model.

In which format do you inted to submit your paper? Word

Authors

Ao Liu (ShanghaiTech University) Weishi Wan (Quantum Science Center of Guangdong-Hong Kong-Macao Greater Bay Area)

Presentation materials

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