标题： KEK的报告（来自Nextef的高梯度研究结果） 显示英文标题

标题： Report from KEK (High gradient study results from Nextef)

摘要： 截至2011年9月，本报告描述了CLIC原型结构的最新高梯度测试。 " T24 "无阻尼结构表现出快速处理时间，仍在下降的击穿率，其击穿率估计低至CLIC的要求。 " TD24 "阻尼结构的高梯度性能不如无阻尼的" T24 "，但其特性比具有更高磁场的阻尼" TD18 "结构有了很大改进。 需要进一步的研发，我们在此介绍KEK的一些当前努力。 显示英文摘要

摘要： Most up-to-date high gradient test of the CLIC prototype structures as of September 2011 is described in this report. The "T24" undamped structure showed fast processing time, still-decreasing breakdown rate and its breakdown rate was estimated to be as low as the CLIC requirement. The "TD24" damped structure showed not so excellent high gradient performance as undamped "T24" but the characteristics was much improved than the damped "TD18" structure with higher magnetic field. Further R&D is needed and we present some of the present efforts at KEK.