| AVS 58th Annual International Symposium and Exhibition | |
| Vacuum Technology Division | Tuesday Sessions |
| Session VT-TuM |
| Session: | Accelerator and Large Vacuum System Design, Outgassing and Pumping |
| Presenter: | Hsiao-Chaun Hseuh, Brookhaven National Laboratory |
| Authors: | H.C. Hseuh, Brookhaven National Laboratory A. Blednykh, Brookhaven National Laboratory L. Doom, Brookhaven National Laboratory M.J. Ferreira, Brookhaven National Laboratory C. Hetzel, Brookhaven National Laboratory J.P. Hu, Brookhaven National Laboratory S. Leng, Brookhaven National Laboratory C. Longo, Brookhaven National Laboratory V. Radindranathh, Brookhaven National Laboratory K. Roy, Brookhaven National Laboratory S. Sharma, Brookhaven National Laboratory F. Willeke, Brookhaven National Laboratory K. Wilson, Brookhaven National Laboratory D. Zigrosser, Brookhaven National Laboratory |
| Correspondent: | Click to Email |
National Synchrotron Light Source II is a new medium energy, ultra low emittance, high flux and high brightness synchrotron radiation facility. NSLS-II consists of a 200-MeV linac, a 3-GeV booster synchrotron, and a 3-GeV 500-mA storage ring with a circumference of 792 meter and over 60 beam lines. The construction of NSLS-II started in 2009 and will be ready for users in 2014. The storage ring vacuum chambers are made of extruded aluminium, with ante-chamber for photon extraction and for distributed NEG pumping. The precision machined extrusions are welded to aluminium-to-stainless bi-metallic flanges using robotic welding machines. Due to the high heat loads, all the photon absorbers are made of GlidCop. The details of the storage ring vacuum system will be presented and compared with those of similar facilities. The challenges encountered in the fabrication of vacuum chambers, photon absorbers and RF shielded bellows will be described. The status of the project will also be summarized.