Title :
Mechanical results of the CEBAF cavity series production
Author :
Mammosser, J. ; Benesch, J.F.
Author_Institution :
Continuous Electron Beam Accel. Facility, Newport News, VA, USA
Abstract :
Interface dimensions of the full production run of 360 CEBAF cavities manufactured by Siemens are summarized. Analysis indicates that length tolerances of ±2 mm and fundamental power coupler location tolerances of ±0.15 mm are achievable on future procurements. Vacuum leaks were a concern early in production but have now been overcome: 2 K helium leak rates integrated over 22 vacuum seals have been measured on 84 cavity pairs and a roughly normal distribution of the log10 (leak rate) is seen, centered about a rate of 10 -10.2 torr-1/s
Keywords :
beam handling equipment; cavity resonators; electron accelerators; linear accelerators; 2 K; CEBAF cavity series production; He leak rates; cavity pairs; full production run; fundamental power coupler location tolerances; interface dimensions; length tolerances; vacuum leaks; vacuum seals; Continuous production; Electron accelerators; Electron beams; Flanges; Length measurement; Linear accelerators; Manufacturing; Optical coupling; Procurement; Structural beams;
Conference_Titel :
Particle Accelerator Conference, 1993., Proceedings of the 1993
Conference_Location :
Washington, DC
Print_ISBN :
0-7803-1203-1
DOI :
10.1109/PAC.1993.308776
