Technological issues and high gradient test results on X-band molybdenum accelerating structures

Abstract Two 11.424 GHz single cell standing wave accelerating structures have been fabricated for high gradient RF breakdown studies. Both are brazed structures: one made from copper and the other from sintered molybdenum bulk. The tests results are presented and compared to those of similar devices constructed at SLAC ( Stanford Linear Accelerator Center ) and KEK ( Kō Enerugī Kasokuki Kenkyū Kikō ). The technological issues to build both sections are discussed.