Details of the design, fabrication and assembly, and operating experience are given for the vacuum system of the MURA 50-MeV electron accelerator. A vacuum envelope constructed of ⅜-in.-thick aluminum alloy is evacuated to pressures of the order of 10−7 Torr by two 280-liter/sec getter-ion pumps. Viton-A elastomer gaskets are used throughout for both fixed and sliding seals.
The design and construction of probes to measure beam size, orbit shape, betatron oscillation frequencies, and beam intensity are described, together with the mechanical and electrical aspects of the probe drives which move the probes.
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