Tailored vacuum chambers for ac magnets

Conference · Tue Jan 01 00:00:00 EST 1985

DOI:https://doi.org/10.1109/TNS.1985.4334513· OSTI ID:5620816

Harvey, A

The proposed LAMPF-II accelerator has a 60-Hz booster synchrotron and a 3-Hz main ring. To provide a vacuum enclosure inside the magnets with low eddy-current losses and minimal field distortion, yet capable of carrying rf image currents and providing beam stabilization, we propose an innovative combination pipe. Structurally, the enclosure is high-purity alumina ceramic, which is strong, radiation resistant, and has good vacuum properties. Applied to the chamber are thin, spaced, silver conductors using adapted thick-film technology. The conductor design can be tailored to the stabilization requirements, for example, longitudinal conductors for image currents, circumferential for transverse stabilization. The inside of the chamber has a thin, resistive coating to avoid charge build-up. The overall 60-Hz power loss is less than 100 W/m.

• Research Organization: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 5620816
• Report Number(s): LA-UR-85-1167; CONF-850504-18; ON: DE85010767
• Resource Relation: Journal Volume: 32; Journal Issue: 5; Conference: Particle accelerator conference, Vancouver, Canada, 13 May 1985
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
LAMPF II SYNCHROTRON
MECHANICAL STRUCTURES
VACUUM SYSTEMS
ALUMINIUM OXIDES
ELECTRIC CONDUCTIVITY
ELECTROMAGNETS
LAYERS
MECHANICAL PROPERTIES
PHYSICAL PROPERTIES
ACCELERATORS
ALUMINIUM COMPOUNDS
CHALCOGENIDES
CYCLIC ACCELERATORS
ELECTRICAL EQUIPMENT
ELECTRICAL PROPERTIES
EQUIPMENT
MAGNETS
MESON FACTORIES
OXIDES
OXYGEN COMPOUNDS
SYNCHROTRONS
430100* - Particle Accelerators- Design
Development
& Operation