Title: Beam-dust interactions in an e$^+$e$^-$ collider Show Chinese title

Title: 电子束尘埃相互作用在电子$^+$电子$^-$对撞机中

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. Show Chinese abstract

Abstract: 在最近设计和运行的电子-正电子对撞机中，由于具有非常低的发射度和高电流，与早期设计相比，束流的能量密度显著增加。 在这些条件下，束流与束流管内残留材料之间的相互作用产生了显著的相互影响。 残留材料被束流加热，导致蒸发、充电和可能的裂变，最终形成等离子体状态。 相反，由于与产生的等离子体之间的电磁相互作用，束流的发射度会增大。 我们通过这些过程的数值模拟来研究这种由尘埃引起的等离子体对束流的影响。