We have built and cold-tested a prototype Plane Wave Transformer (PWT) linac structure, resonating at the designed frequency of 2856 MHz. The third prototype PWT linac, has been successfully brazed and leak-tested to a leak-rate of better than 1x10~(-9) Torr l/s, and is currently being used for acceleration trials. We have also successfully built two brazing prototypes of the Laser photo cathode gun out of Electrolytic Tough Pitch (ETP) copper to determine the optimum number of brazing cycles required for the final brazing, before going on to build the final gun prototype of Oxygen free electronic grade (OPE) copper. In this paper we report the results of our initial brazing trials and the final brazing sequence followed in the successful brazing of both these structures.
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机译：我们已经建造和冷却测试了原型平面波变压器（PWT）LINAC结构，以设计频率为2856 MHz的谐振。第三种原型PWT Linac已成功钎焊和泄漏测试到泄漏率优于1×10〜（-9）Torr L / s，目前正在用于加速试验。我们还成功地建造了电解韧带（ETP）铜的激光照片阴极枪的两种钎焊原型，以确定最终钎焊所需的最佳钎焊循环数，然后继续构建无氧电子电子的最终枪原型等级（ope）铜。在本文中，我们报告了我们初始钎焊试验的结果和最终钎焊序列，然后在成功的两种结构中钎焊。
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