Work

Beam-dust interactions in an e + e − collider

Year: 2026

Type: article

Abstract: In recent electron-positron colliders designed and operated with very low emittance and high current, the energy density of the beam has increased significantly compared to earlier designs. Under these conditions, interactions between the beam and residual materials within the beam pipe exert considerable mutual influence. The residual materials are heated by the beam, leading to evaporation, charging, and possible fission, eventually resulting in a plasma state. Conversely, the beam undergoes emittance growth due to electromagnetic interactions with the resulting plasma. We investigate the effects of such dust-induced plasma on the beam through numerical simulations of these processes.

Source: Physical Review Accelerators and Beams

DOI: 10.1103/dwmr-qldc

Authors: Kazuhito Ohmi, Hitoshi Fukuma, Shinji Terui

Institutions: University of Science and Technology of China, High Energy Accelerator Research Organization, Institute for High Energy Physics, Institute of High Energy Physics

Language: English

Topic: Particle accelerators and beam dynamics

Subfield: Aerospace Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: diamond

Funders: Chinese Academy of Sciences, Institute of High Energy Physics

Award: G8748473540