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TY - UNPB AU - Li, S. ED - Yamazaki, Yoshishige ED - Raubenheimer, Tor ED - McCausey, Amy ED - Schaa, Volker RW TI - Generation and Characterization of Attosecond Pulses From X-Ray Free-Electron Laser J2 - Proc. of NAPAC2019, Lansing, MI, USA, 01-06 September 2019 CY - Lansing, MI, USA T2 - North American Particle Accelerator Conference T3 - 4 LA - english AB - In this talk I will discuss the production and application of sub-femtosecond x-ray pulses recently generated at LCLS. I will focus on angular streaking as the measurement technique to resolve the extremely short x-ray pulses. This method exploits phase dependent energy modulation of a photoelectron ionized in the presence of a strong laser field with circular polarization. I will present experimental results of single shot images and preliminary analysis results. Specifically I will discuss two applications of this technique: streaking of the Auger electrons and measuring the shape resonance directly in the time domain. PB - JACoW Publishing CP - Geneva, Switzerland ER -