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Title: National Synchrotron Light Source II storage ring vacuum systems

Abstract

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.

Authors:
; ; ; ; ;  [1]
  1. National Synchrotron Light Source II, Brookhaven National Laboratory, Upton, New York 11973 (United States)
Publication Date:
OSTI Identifier:
22592915
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Vacuum Science and Technology. A, Vacuum, Surfaces and Films; Journal Volume: 34; Journal Issue: 3; Other Information: (c) 2016 American Vacuum Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
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

Citation Formats

Hseuh, Hsiao-Chaun, E-mail: hseuh@bnl.gov, Hetzel, Charles, Leng, Shuwei, Wilson, King, Xu, Huijuan, and Zigrosser, Douglas. National Synchrotron Light Source II storage ring vacuum systems. United States: N. p., 2016. Web. doi:10.1116/1.4945406.
Hseuh, Hsiao-Chaun, E-mail: hseuh@bnl.gov, Hetzel, Charles, Leng, Shuwei, Wilson, King, Xu, Huijuan, & Zigrosser, Douglas. National Synchrotron Light Source II storage ring vacuum systems. United States. doi:10.1116/1.4945406.
Hseuh, Hsiao-Chaun, E-mail: hseuh@bnl.gov, Hetzel, Charles, Leng, Shuwei, Wilson, King, Xu, Huijuan, and Zigrosser, Douglas. Sun . "National Synchrotron Light Source II storage ring vacuum systems". United States. doi:10.1116/1.4945406.
@article{osti_22592915,
title = {National Synchrotron Light Source II storage ring vacuum systems},
author = {Hseuh, Hsiao-Chaun, E-mail: hseuh@bnl.gov and Hetzel, Charles and Leng, Shuwei and Wilson, King and Xu, Huijuan and Zigrosser, Douglas},
abstractNote = {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.},
doi = {10.1116/1.4945406},
journal = {Journal of Vacuum Science and Technology. A, Vacuum, Surfaces and Films},
number = 3,
volume = 34,
place = {United States},
year = {Sun May 15 00:00:00 EDT 2016},
month = {Sun May 15 00:00:00 EDT 2016}
}