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TY - CONF AU - Wu, D. AU - He, T.H. AU - Lao, C.L. AU - Li, P. AU - Liu, J. AU - Liu, Y. AU - Luo, X. AU - Pan, Q. AU - Shan, L.J. AU - Shen, X. AU - Wang, J. AU - Xiao, D.X. AU - Yan, L.G. AU - Zhang, P. AU - Zhou, K. ED - Schaa, Volker RW TI - Differential Evolution Genetic Algorithm for Beam Bunch Temporal Reconstruction J2 - Proc. of IBIC2018, Shanghai, China, 9-13 September 2018 C1 - Shanghai, China T2 - International Beam Instrumentation Conference T3 - 7 LA - english AB - Coherent radiation, such as coherent transition radiation, coherent diffraction radiation, coherent synchrotron radiation, etc, can be used to measure the longitudinal distribution of the electron beam bunch of any length, as long as the coherent radiation spectrum can be measured. In many cases, the Kramers-Krönig relationship is used to reconstruct the temporal distribution of the beam from the coherent radiation spectrum. However, the extrapolation of the low frequency will introduce the uncertainty of the reconstruction. In this paper, an algorithm of differential evolution (DE) for temporal reconstruction is discussed. The DE reconstruction works well for the complex and ultrashort distribution. It will be an effectIve tool to accurately measure the femtosecond bunch temporal structure. PB - JACoW Publishing CP - Geneva, Switzerland SP - 392 EP - 395 KW - radiation KW - electron KW - laser KW - FEL KW - experiment DA - 2018/11 PY - 2018 SN - 978-3-95450-201-1 DO - 10.18429/JACoW-IBIC2018-WEPA12 UR - http://jacow.org/ibic2018/papers/wepa12.pdf ER -