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arXiv 2510.04415physics.acc-ph
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e$^+$e$^-$对撞机中的束流-尘埃相互作用

Beam-dust interactions in an e$^+$e$^-$ collider

Kazuhito Ohmi, Hitoshi Fukuma, Shinji Terui

AI总结:

针对低发射度高电流正负电子对撞机中束流与管内残余尘埃作用形成等离子体、进而导致束流发射度增长的问题,通过数值模拟研究了尘埃诱导等离子体对束流的影响。

摘要:

在设计并运行于极低发射度、高电流条件的新型电子-正电子对撞机中,束流的能量密度较早期设计显著提升。在此条件下,束流与束流管内残余物质的相互作用会产生相当大的相互影响:残余物质被束流加热,引发蒸发、带电及可能的裂变,最终形成等离子体态;反过来,束流因与生成的等离子体发生电磁相互作用而出现发射度增长。我们通过对这些过程开展数值模拟,研究了此类尘埃诱导等离子体对束流的影响。

英文摘要:

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.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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