Title :
First results of quasi-isochronous operation at LNLS
Author :
Lin, Liu ; Tavares, P.F.
Author_Institution :
LNLS, Campinas, Brazil
fDate :
6/21/1905 12:00:00 AM
Abstract :
We have started a program at LNLS to implement a quasi-isochronous operation mode at the 1.37 GeV electron storage ring. The aim is to explore nonlinear longitudinal beam dynamics along with the reduction in the electron bunch length. To characterize the modes we have set up an electron bunch length measurement system which uses the visible light emitted from a bending magnet and a commercial fast photodiode with a sampling oscilloscope. The synchrotron oscillation frequency and the orbit displacement were also measured as a mean to assess the momentum compaction factor α. Up until the moment a reduction of a factor of 13 in α was obtained
Keywords :
electron accelerators; electron optics; particle beam bunching; particle beam dynamics; storage rings; synchrotrons; α; 1.37 GeV; LNLS; electron bunch length; electron storage ring; momentum compaction factor; nonlinear longitudinal beam dynamics; orbit displacement; quasi-isochronous operation; synchrotron oscillation frequency; Electron beams; Electron emission; Frequency; Length measurement; Nonlinear dynamical systems; Oscilloscopes; Photodiodes; Sampling methods; Storage rings; Synchrotrons;
Conference_Titel :
Particle Accelerator Conference, 1999. Proceedings of the 1999
Print_ISBN :
0-7803-5573-3
DOI :
10.1109/PAC.1999.792974
