Pressure distribution along the AGS vacuum chambers with new types of pump out conduits

Technical Report · Wed Oct 28 00:00:00 EDT 2015

DOI:https://doi.org/10.2172/1228844· OSTI ID:1228844

Nayak, S. ^[1]; Mapes, M. ^[1]; Smart, L. ^[1]; Weiss, D. ^[1]

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1. Brookhaven National Lab. (BNL), Upton, NY (United States)

The AGS HEBT and ring vacuum system is monitored by the discharge current of the magnet ion pumps, which is proportional to the pressure at the inlet port of these ion pumps. The discharge current is measured and suitably calibrated to indicate the ion pump pressure. In order to calculate the vacuum chamber pressure from the ion pump pressure, a detailed analysis is essential to compute their difference in different scenarios. Such analysis has been carried out numerically in the past for the system with the older type of pump out conduits, and similar analysis using FEM in ANSYS is presented in this paper with the newer type of pump out conduit.

• Research Organization: Brookhaven National Laboratory (BNL), Upton, NY (United States). Alternating Gradient Synchrotron
• Sponsoring Organization: USDOE Office of Science (SC), Nuclear Physics (NP)
• DOE Contract Number: SC00112704
• OSTI ID: 1228844
• Report Number(s): BNL-108555-2015-IR; R&D Project: KBCH139; 18038; KB0202011; TRN: US1600104
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
BROOKHAVEN AGS
VACUUM PUMPS
ELECTRIC CURRENTS
DISTRIBUTION
IONS
MAGNETS
VACUUM SYSTEMS
STORAGE RINGS
FINITE ELEMENT METHOD
PRESSURE GAGES
CALIBRATION
PRESSURE RANGE MICRO PA
PRESSURE GRADIENTS
Alternating Gradient Synchrotron