Title :
Improvement of the storage ring UHV system of NSRL
Author :
Wang, Y. ; Wei, W. ; Zhao, F.Y. ; Wang, J.P. ; Jing, D.M. ; Fan, L. ; Guan, C.Y. ; Wu, Guanyuan
Author_Institution :
Nat. Synchrotron Radiat. Laboratory, Univ. of Sci. & Technol. of China, Hefei, China
Abstract :
NSRL storage-ring has been operated for fourteen years, The typical life time is 600 mins at 200 mA and 800 MeV. The new injection ceramic chamber, bend chamber, undulator and NEG pumps were installed, new vacuum measure and control system was debugged in 2002 summer, as part of NSRL phase II project to enhance the quality, stability and long-term reliability. The average pressure of storage ring is better than 2E-8 Pascal after 48 hour large current direct backout and 48 hour ion pumps operation, this better vacuum can benefit the phase II project´s object, beam lifetime 600 mins at 300 mA and 800 MeV.
Keywords :
accelerator control systems; particle beam dynamics; particle beam injection; particle beam stability; storage rings; wigglers; 200 mA; 300 mA; 600 min; 800 MeV; NEG pumps; NSRL phase II project; NSRL storage-ring; beam lifetime; bend chamber; control system; injection ceramic chamber; ion pumps operation; stability; storage ring UHV system; undulator; Control systems; Electrons; Laboratories; Laser excitation; Optical harmonic generation; Stability; Storage rings; Synchrotron radiation; Undulators; Vacuum systems;
Conference_Titel :
Particle Accelerator Conference, 2003. PAC 2003. Proceedings of the
Print_ISBN :
0-7803-7738-9
DOI :
10.1109/PAC.2003.1289487
