带电粒子束在弯曲毛细放电波导中的导引
Guiding of charged particle beams in curved capillary-discharge waveguides
摘要：
提出了一种新的弯曲路径带电粒子束传输方法。它是基于弯曲的毛细管放电波导，其中诱导的方位角磁场被用来聚焦光束，并保持它靠近毛细管轴。我们表明，这样的解决方案是高度可调的，它允许开发紧凑的结构，提供大的偏转角，并与传统的解决方案的基础上弯曲磁铁，保留了光束的纵向相空间。后一个功能，特别是，是非常有前途的处理超短束时，通常需要在纵向相空间上的非平凡的操作时，采用传统的设备。
英文摘要：
A new method able to transport charged particle beams along curved paths is presented. It is based on curved capillary-discharge waveguides in which the induced azimuthal magnetic field is used both to focus the beam and keep it close to the capillary axis. We show that such a solution is highly tunable, it allows to develop compact structures providing large deflecting angles and, unlike conventional solutions based on bending magnets, preserves the beam longitudinal phase space. The latter feature, in particular, is very promising when dealing with ultra-short bunches for which non-trivial manipulations on the longitudinal phase spaces are usually required when employing conventional devices.
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