TY - CPAPER
AU - Wang, L.
AU - Benwell, A.L.
AU - Brachmann, A.
AU - Colocho, W.S.
AU - Decker, F.-J.
AU - Huang, Z.
AU - Maxwell, T.J.
AU - Tao, T.
AU - Turner, J.L.
TI - Energy Jitter Minimization at LCLS
J2 - Proc. of FEL2015
AB - The energy jitters of the electron beam can affects the FEL in self-seeded modes if the jitter is large compared to the FEL parameter. We work in multiple ways to reduce the jitters, including hardware improvement, optimization linac set-up. This paper discusses the optimization of linac set-up. The solutions always suggest that we can largely reduce the energy jitter from a weak compression at BC1 and a stronger compression at BC2. Meanwhile a low beam energy at BC2 also reduce the energy jitter, which is confirmed by the experiment. The results can be explained by a simple model. Experimental results are also presented, demonstrating better than 20% and 40% relative energy jitter reduction for 13.6 and 4 GeV linac operation, respectively.
PB - JACoW
CY - Geneva, Switzerland
SP - 523
EP - 529
KW - linac
KW - timing
KW - experiment
KW - operation
KW - simulation
DA - 2015/12
PY - 2015
SN - 978-3-95450-134-2
DO - 10.18429/JACoW-FEL2015-TUP070
UR - http://accelconf.web.cern.ch/AccelConf/FEL2015/papers/tup070.pdf
ER -