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arXiv 0903.1935physics.acc-ph
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CLIC主直线加速器尾场抑制的一种替代设计

An alternate design for CLIC main linac wakefield suppression

V. F. Khan, R. M. Jones

摘要:

CLIC的主加速结构的当前设计是基于Q为~10的重阻尼(WDS)。在这种情况下,尾流场抑制需要将阻尼材料定位在相对靠近加速单元的位置。在这里,我们提出了一种替代设计的主要加速结构。我们失谐的最低偶极子带规定一个高斯分布的细胞参数和考虑适度阻尼Q~500,以防止重相干的模式,在这种情况下,阻尼材料可以位于一个扩展的距离从加速结构。实现良好阻尼尾流场的程序进行了说明。结果阐明了各种设计,包括目前正在开发的一个,将射频。击穿、脉冲表面加热和束流动力学约束。

英文摘要:

The present design of the main accelerating structure for CLIC is based on heavy damping (WDS) with a Q of ~10. The wakefield suppression in this case entails locating the damping materials in relatively close proximity to the accelerating cells. Herein we present an alternate design for the main accelerating structures. We detune the lowest dipole band by prescribing a Gaussian distribution to the cell parameters and consider moderate damping Q~500 to prevent the recoherence of the modes; in this case the damping materials can be located at an extended distance from the accelerating structure. The procedure to achieve a well-damped wakefield is described. Results are presented elucidating the various designs including the current one which is being developed to incorporate r.f. breakdown, pulse surface heating and beam dynamics constraints.

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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