TY - CPAPER AU - Qin, W. AU - Chen, J.E. AU - Ding, Y. AU - Huang, S. AU - Huang, Z. AU - Liu, K.X. AU - Yan, X.Q. AU - Zeng, L. TI - Free-Electron Laser Driven by a 500 MeV Laser Plasma Accelerator Beam J2 - Proc. of FEL2015 AB - A laser plasma accelerator is under construction at Peking University and several hundred MeV electron beams are expected. In this paper we discuss applying a 500 MeV beam with 1% relative energy spread to FEL. Bunch decompression method is considered to deal with the large energy spread of the beam. Emittance growth induced by large divergence and energy spread in electron beam transport has been treated with the chromatic matching manipulation. Simulation shows that 100 MW level, 6.3 fs , 0.008 bandwidth output can be obtained for 30 nm FEL. TGU method with assumed matched beam is also discussed as a comparison. PB - JACoW CY - Geneva, Switzerland SP - 217 EP - 220 KW - FEL KW - undulator KW - laser KW - emittance KW - plasma DA - 2015/12 PY - 2015 SN - 978-3-95450-134-2 DO - 10.18429/JACoW-FEL2015-MOP076 UR - http://accelconf.web.cern.ch/AccelConf/FEL2015/papers/mop076.pdf ER -