论文标题
LCLS-II-HE项目的扩展范围SRF腔调谐器的测试*
Tests Of The Extended Range SRF Cavity Tuners For The LCLS-II-HE Project*
论文作者
论文摘要
LINAC的LCLS-II可以通过同时支撑多个驱动器线来产生多能梁。这可以通过在频道检测模式下使用腔SRF调谐器来实现。在验证冷冻模块（VCM）和Fermilab的CM 1中测试了这种异常操作方法。在两种情况下，调谐器的频移均达到-565 $ \ pm $ 80 kHz。这项研究将在每个步骤中讨论腔体频率，因为它在CryoModule字符串中组装在一起，最后在2 k处进行测试时。跟踪腔频率有助于使调谐器达到此大频移。将提出调谐器设置的特定过程。
The LCLS-II HE superconducting linac can produce multi-energy beams by supporting multiple undulator lines simultaneously. This could be achieved by using the cavity SRF tuner in the off-frequency detune mode. This off-frequency operation method was tested in the verification cryomodule (vCM) and CM 1 at Fermilab at 2 K. In both cases, the tuners achieved a frequency shift of -565$\pm$80 kHz. This study will discuss cavity frequency during each step as it is being assembled in the cryomodule string and finally when it is being tested at 2 K. Tracking the cavity frequency helped enable the tuners to reach this large frequency shift. The specific procedures of tuner setting during assembly will be presented.
