A cylindrical hollow plasma cavity was designed for a particle-driven plasma accelerator experiment for future e ⁺ e ⁻ colliders. Surface wave ionization was used to generate a high-density, highly stable cylindrical hollow plasma instead of the laser ionization. Microwave and plasma models were used to optimize the plasma cavity structure, the gas pressure, and the microwave frequency and power to produce a high-quality plasma. The plasma simulation results show that with a 6 GHz at 2 kW microwaves power, a ${\emptyset }100$ mm $\times400$ mm (length) $\times30$ mm (thickness) hollow plasma column with a density of $2.76\times 10^{15}$ /cm ³ will be obtained. The fluctuations of the plasma density in longitudinal direction are less than 2%, which is satisfactory to provide a long and stable enough plasma region for the wakefield acceleration experiment. The details will be described in this article.

中文翻译：

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用于未来 e ⁺ e ⁻对撞机尾波场助推器的基于面波的圆柱形空心等离子体腔的设计和仿真

圆柱形中空等离子体腔是为未来 e ⁺ e ^-对撞机的粒子驱动等离子体加速器实验设计的 。表面波电离用于产生高密度、高度稳定的圆柱形空心等离子体，而不是激光电离。微波和等离子体模型用于优化等离子体腔结构、气压、微波频率和功率，以产生高质量的等离子体。等离子体模拟结果表明，在 6 GHz 的 2 kW 微波功率下， ${\emptyset }100$ 毫米 $\times400$ 毫米（长度） $\times30$ mm（厚度）中空等离子柱，密度为 $2.76\乘以 10^{15}$ /cm ³将被获得。纵向等离子体密度波动小于2%，足以为尾流场加速实验提供足够长且稳定的等离子体区域。详细信息将在本文中描述。