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TY - CONF AU - Juranič, P.N. AU - Abela, R. AU - Gorgisyan, I. AU - Hauri, C.P. AU - Ischebeck, R. AU - Ivanov, R. AU - Liu, J. AU - Monoszlai, B. AU - Ogawa, K. AU - Owada, S. AU - Patthey, L. AU - Peier, P. AU - Pradervand, C. AU - Radović, M. AU - Rivkin, L. AU - Schlott, V. AU - Stepanov, A.G. AU - Togashi, T. AU - Yabashi, M. ED - Schaa, Volker RW TI - PALM Concepts and Considerations J2 - Proc. of IBIC2016, Barcelona, Spain, Sept. 13-18, 2016 C1 - Barcelona, Spain T2 - International Beam Instrumentation Conference T3 - 5 LA - english AB - The Photon Arrival and Length Monitor (PALM), a THz streak camera device developed by PSI for non-destructive hard x-ray measurements of photon pulse length and arrival time versus a pump laser*, was brought to the SACLA XFEL** in Japan in a cross-calibration temporal diagnostics campaign after an initial experiment where only the PALM was being used***. The device was used with 9 keV pink beam and a 9.0 and 8.8 keV two-color mode, successfully measuring the arrival time and pulse lengths for several different FEL operating conditions. The device has shown itself to be very robust and transparent to the FEL beam, with temporal characterization accuracies of 15 fs or better. SwissFEL will employ two such devices at the end stations for use by both operators and experimenters to improve the operation of the FEL and to better interpret experimental data. This report presents the PALM and its uses and capabilities, and discusses the results from the SACLA cross-calibration experiments. PB - JACoW CP - Geneva, Switzerland SP - 849 EP - 852 KW - electron KW - FEL KW - laser KW - photon KW - free-electron-laser DA - 2017/02 PY - 2017 SN - 978-3-95450-177-9 DO - 10.18429/JACoW-IBIC2016-THAL01 UR - http://jacow.org/ibic2016/papers/thal01.pdf ER -