Title :
Bunch length measurement and its lengthening in HLS
Author :
Sun, B.G. ; Chen, L.K. ; Wang, J.H. ; Jin, Y.M. ; Wang, G.C. ; Lu, P.
Author_Institution :
Nat. Synchrotron Radiat. Lab., Univ. of Sci. & Technol. of China, Hefei, China
Abstract :
The paper discusses the method and principle of bunch length measured by HP54121T 20 GHz digital sampling oscilloscope in Hefei Light Source (HLS) ring. The measurement results of the bunch length and the energy spread are given. The r.m.s. bunch length is about 3.8-10.33 cm. A new theory on the bunch lengthening is used to explain the experimental results. It is proved that the beam-cavity interaction is the most important factor to the multi-bunch lengthening of HLS
Keywords :
digital storage oscilloscopes; electron accelerators; electron beams; particle beam bunching; particle beam diagnostics; storage rings; 20 GHz; 3.8 to 10.33 cm; HLS; Hefei Light Source; beam-cavity interaction; bunch length measurement; bunch lengthening; digital sampling oscilloscope; energy spread; multibunch lengthening; Electrodes; High level synthesis; Impedance; Length measurement; Monitoring; Oscilloscopes; Pulse measurements; Sampling methods; Stripline; 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.1999.794414
