Processing and evaluation of the AGS Booster ultra-high vaccum system

Conference · Tue Jan 01 04:00:00 EST 1991

OSTI ID:5773280

Hseuh, H C; Mapes, M; Schnitzenbaumer, P; Shen, B; Sikora, R; Stattel, P

The AGS Booster is a synchrotron for the acceleration of both protons and heavy ions. To minimize the beam loss due to charge exchange of the partially stripped, low {Beta} very heavy ions with the residual gas molecules, pressure of low 10{sup {minus}11} Torr is required for the 200 m booster ring. To achieve this ultra high vacuum, chemical cleaning, vacuum furnace degassing and insitu bake were employed for all chambers and beam components. Using these procedures, vacuums of low 10{sup {minus}11} Torr have been routinely achieved during the testing of individual half cells and beam components, and during the commissioning of the vacuum sectors. In this paper, the design and layout of chambers, flanges and bakeout hardware is briefly described. The vacuum processing of different components and the results of bakeout and evaluation are summarized. The experience gained during the construction and commissioning of this ultra-high vacuum system is also given. 3 refs., 3 figs., 1 tab.

• Research Organization: Brookhaven National Lab., Upton, NY (USA)
• Sponsoring Organization: DOE; USDOE, Washington, DC (USA)
• DOE Contract Number: AC02-76CH00016
• OSTI ID: 5773280
• Report Number(s): BNL-46144; CONF-910505--250; ON: DE91014026
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
430303* -- Particle Accelerators-- Experimental Facilities & Equipment
ACCELERATORS
BROOKHAVEN AGS
CYCLIC ACCELERATORS
DEGASSING
EQUIPMENT
EVALUATION
LABORATORY EQUIPMENT
PARTICLE BOOSTERS
PARTICLE LOSSES
PUMPS
SEALS
SYNCHROTRONS
VACUUM PUMPS
VACUUM SYSTEMS