Fermilab Accumulator Ring ultrahigh vacuum system

Journal Article · Thu May 01 00:00:00 EDT 1986 · J. Vac. Sci. Technol., A; (United States)

DOI:https://doi.org/10.1116/1.573971· OSTI ID:5535159

Mills, F E; Bartelson, C; Gormley, M; Klen, J; Lee, G N; Marriner, J; Misek, J R; Rathbun, T D; Satti, J A; Sax, W

An average pressure of 3 x 10/sup -10/ Torr is required in order to store a beam of antiprotons (for up to 20 h) in the Fermilab Accumulator Ring. The Accumulator Ring has a circumference of 474 m and consists of 114 main magnets which surround a continuous, stainless-steel vacuum chamber with a mean diameter of 12 cm. The Accumulator Ring is located in a below grade tunnel which is inaccessible during normal operation. Consequently, all monitoring and control operations must be done remotely. In this paper we describe: (1) the rationale of the Accumulator Ring's vacuum system; (2) the specific choice of pumping systems (roughing, ion, and sublimation) that was selected for implementation; (3) the details of the instrumentation, control, and bakeout systems (300 /sup 0/C) for monitoring the pressure and desorbing the vacuum chamber; and (4) the operating experience and performance of the entire system.

• Research Organization: Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
• OSTI ID: 5535159
• Journal Information: J. Vac. Sci. Technol., A; (United States), Vol. 4:3
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
42 ENGINEERING
STORAGE RINGS
VACUUM SYSTEMS
OPERATION
PUMPING
ANTIPROTONS
BAKING
DESORPTION
PRESSURE MEASUREMENT
ANTIBARYONS
ANTIMATTER
ANTINUCLEI
ANTINUCLEONS
ANTIPARTICLES
BARYONS
ELEMENTARY PARTICLES
FERMIONS
HADRONS
HEATING
NUCLEI
NUCLEONS
430400* - Particle Accelerators- Storage Rings
420700 - Engineering- Vacuum Engineering- (-1987)