Title :
Research on DC-clearing electric field and changes of focusing structure parameters of storage ring
Author :
Wang, X.Q. ; Pei, Y.J. ; Dong, X.L. ; Xu, H.L. ; Shang, L. ; Wang, L. ; Fan, K.J. ; Wang, G.C. ; Yao, C.G. ; Hu, S.M. ; Luo, X.F.
Author_Institution :
NSRL, USTC, Anhui, China
Abstract :
This paper presents DC clearing field to clear ions in vacuum pipe of Hefei ring. It also presents changes of focusing structure parameters caused by the clearing field. It concludes that tune shifts caused by the field are related to real-time closed orbit of the beam. The paper points out that the field asymmetrically distributed along the ring destroys the symmetry of focusing structure and decreases the ring acceptance, which has negative effect to injection and accumulation process in certain condition
Keywords :
electron accelerators; electron beam focusing; particle beam dynamics; storage rings; DC clearing field; DC-clearing electric field; Hefei ring; accumulation process; focusing structure; focusing structure parameters; injection; real-time closed orbit; ring acceptance; storage ring; tune shifts; vacuum pipe; Data analysis; Differential equations; Electrodes; Lattices; Magnetic analysis; Magnets; Particle beams; Storage rings; Voltage; Wire;
Conference_Titel :
Particle Accelerator Conference, 1999. Proceedings of the 1999
Conference_Location :
New York, NY
Print_ISBN :
0-7803-5573-3
DOI :
10.1109/PAC.1999.794192
