论文标题
ILC冷冻模块的升级
Upgrade of the ILC cryomodule
论文作者
论文摘要
总结了国际线性对撞机（ILC）的冷冻模块的测试成分的结果。为了降低ILC项目成本，建议用不锈钢（SS）代替钛冷冻模块。新的双金属过渡ti_ss，NB_SS是通过基于爆炸焊接的独特方法生成的。将这些组件连续升级到NB/TI/SS过渡元素的最新版本导致ILC Cryomodule的改进。这种新组件解决了残余应力的问题，其特异性设计可防止由于组成金属的线性扩展系数差异而导致转移的可能性。 HE气体的泄漏测试显示，以0.2x10-10atmxcc-1s的背景速率没有泄漏。测试结果非常令人鼓舞。 Trimetallic NB_TI_SS元素的最新设计承诺在技术上更简单，更便宜。调查表明，爆炸焊接允许不仅用于加速器的低温单元，而且用于实验室设备和通用工程应用。
Results of testing modified components for the cryomodule of the International Linear Collider (ILC) are summarized. To reduce the ILC project cost, it is proposed to replace titanium cryomodule components with stainless steel (SS) ones. New bimetallic transitions Ti_SS, Nb_SS have been produced by a unique method based on explosion welding. Successive upgrading of these components to the latest version of the Nb/Ti/SS transition element has led to improvement of the ILC cryomodule. This new component resolves problems of residual stress, and its specific design prevents the possibility of a shift due to the difference in the linear expansion coefficients of the constituent metals. Leak tests with the He gas revealed no leaks at the background rate of 0.2x10-10atmxcc-1s. The test results are very encouraging. The up-to-date design of trimetallic Nb_Ti_SS element promises technologically simpler and less expensive manufacture. Investigations have shown that explosion welding allows unique trimetallic components to be made not only for cryogenic units of accelerators but also for laboratory equipment and for general engineering applications.
