National Synchrotron Light Source II storage ring vacuum systems

Journal Article · Sun May 15 00:00:00 EDT 2016 · Journal of Vacuum Science and Technology. A, Vacuum, Surfaces and Films

DOI:https://doi.org/10.1116/1.4945406· OSTI ID:22592915

Hseuh, Hsiao-Chaun; Hetzel, Charles; Leng, Shuwei; Wilson, King; Xu, Huijuan; Zigrosser, Douglas ^[1]

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1. National Synchrotron Light Source II, Brookhaven National Laboratory, Upton, New York 11973 (United States)

The National Synchrotron Light Source II, completed in 2014, is a 3-GeV synchrotron radiation (SR) facility at Brookhaven National Laboratory and has been in steady operation since. With a design electron current of 500 mA and subnanometer radians horizontal emittance, this 792-m circumference storage ring is providing the highest flux and brightness x-ray beam for SR users. The majority of the storage ring vacuum chambers are made of extruded aluminium. Chamber sections are interconnected using low-impedance radiofrequency shielded bellows. SR from the bending magnets is intercepted by water-cooled compact photon absorbers resided in the storage ring chambers. This paper presents the design of the storage ring vacuum system, the fabrication of vacuum chambers and other hardware, the installation, the commissioning, and the continuing beam conditioning of the vacuum systems.

• OSTI ID: 22592915
• Journal Information: Journal of Vacuum Science and Technology. A, Vacuum, Surfaces and Films, Vol. 34, Issue 3; Other Information: (c) 2016 American Vacuum Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0734-2101
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
ALUMINIUM
BEAMS
BNL
BRIGHTNESS
ELECTRONS
FABRICATION
GEV RANGE 01-10
IMPEDANCE
MAGNETS
NSLS
PHOTONS
RADIOWAVE RADIATION
STORAGE RINGS
SYNCHROTRON RADIATION
SYNCHROTRONS
VACUUM SYSTEMS
WATER COOLED REACTORS
X RADIATION