Title :
Machine study and improvement of the HLS storage ring
Author :
Jin, Y. ; Liu, Z. ; Li, W. ; Li, Y. ; Zhou, A. ; Zhang, W. ; Jia, Q. ; Sun, B.
Author_Institution :
Nat. Synchrotron Radiat. Lab., Univ. of Sci. & Technol. of China, Hefei, China
Abstract :
The machine studies and improvements for the HLS storage ring are presented,here. Since 1993 some beam instabilities such as head-tail instability and bunch lengthening as well as beam-cavity interaction have been observed and studied. The ion-trapping phenomenon is being studied. An RF knock out system for single bunch or for non-uniform filling to get high beam current has been installed into the ring and got some good results. A superconducting wiggler of 6 Tesla and an optical klystron (OK) used for FEL experiments as two insertion devices have been installed into the HLS. The wiggler has been commissioned and got more than 100 mA beam current. In order to make further improving performance of the machine, a Phase-II Project is going on
Keywords :
X-ray production; beam handling equipment; electron accelerators; optical klystrons; particle beam bunching; particle beam injection; particle beam stability; storage rings; synchrotron radiation; wigglers; 100 mA; 6 T; HLS storage ring; Hefei Light Source; RF knock out system; beam instabilities; beam-cavity interaction; bunch lengthening; head-tail instability; improvements; insertion devices; ion-trapping phenomenon; machine studies; nonuniform filling; optical klystron; single bunch filling; superconducting wiggler; Electrodes; High level synthesis; Klystrons; Lattices; Light sources; Linear particle accelerator; Radio frequency; Storage rings; Undulators; Voltage;
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.1999.792706
