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. 2005 Mar 25;94(11):114801.
doi: 10.1103/PhysRevLett.94.114801. Epub 2005 Mar 24.

Clocking femtosecond X rays

A L Cavalieri  1 , D M Fritz, S H Lee, P H Bucksbaum, D A Reis, J Rudati, D M Mills, P H Fuoss, G B Stephenson, C C Kao, D P Siddons, D P Lowney, A G Macphee, D Weinstein, R W Falcone, R Pahl, J Als-Nielsen, C Blome, S Düsterer, R Ischebeck, H Schlarb, H Schulte-Schrepping, Th Tschentscher, J Schneider, O Hignette, F Sette, K Sokolowski-Tinten, H N Chapman, R W Lee, T N Hansen, O Synnergren, J Larsson, S Techert, J Sheppard, J S Wark, M Bergh, C Caleman, G Huldt, D van der Spoel, N Timneanu, J Hajdu, R A Akre, E Bong, P Emma, P Krejcik, J Arthur, S Brennan, K J Gaffney, A M Lindenberg, K Luening, J B Hastings
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Free article

Clocking femtosecond X rays

A L Cavalieri et al. Phys Rev Lett. .
Free article

Abstract

Linear-accelerator-based sources will revolutionize ultrafast x-ray science due to their unprecedented brightness and short pulse duration. However, time-resolved studies at the resolution of the x-ray pulse duration are hampered by the inability to precisely synchronize an external laser to the accelerator. At the Sub-Picosecond Pulse Source at the Stanford Linear-Accelerator Center we solved this problem by measuring the arrival time of each high energy electron bunch with electro-optic sampling. This measurement indirectly determined the arrival time of each x-ray pulse relative to an external pump laser pulse with a time resolution of better than 60 fs rms.

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