| Paper | Title | Page |
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| MOPG52 | Simulation of THz Streak Camera Performance for Femtosecond FEL Pulse Length Measurement | 176 |
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Measurement of the temporal duration of FEL pulses is important both for the operators to monitor the performance of the machine and the users performing pump-probe measurements with FEL beam. The light-field streak camera is a promising methods for the photon pulse length measurement that uses the electric field of an IR/THz laser to streak the photoelectrons*. This contribution presents a simulation of the performance of a streak camera using a single-cycle THz pulse**. The simulation recreates the photoionization process and generates electron spectra in presence of the THz field and without it. Using these spectra the photon pulse lengths are calculated and compared to the initial values. Most of the parameters used in the simulation are chosen based on experiments performed earlier.*** This contribution presents the simulation method and the obtained results. It validates the pulse length calculation analysis method and estimates the expected measurement accuracy and precision for the THz streak camera measurement technique. The simulations were done for different FEL pulse lengths ranging from about 1 fs to 40 fs both in soft and hard X-ray range.
*J. Itatani et al, PRL 88,2002 *U. Fruhling et al, N. Phot. 3,2009 **I. Gorgisyan et al, JSR 3,2016 ***P. N. Juranic et al, Opt. Exp. 22,2014 ***P. N. Juranic et al, J. Inst. 9,2014 |
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| DOI • | reference for this paper ※ DOI:10.18429/JACoW-IBIC2016-MOPG52 | |
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