Abstract Details 171

High-rep-Rate X-ray Scattering Measurements at Synchrotrons at 20 Picosecond Resolution
Abstract ID 171
Presenter Michael Kozina
Presentation Type Poster
Full Author List Te Hu, Apurva Mehta, Michael Biegalksi, David Reis, Aaron Lindenberg

Stanford University


Time resolved x ray pump-probe capabilities have been developed at the Stanford Synchrotron Radiation Lightsource at megahertz repetition rates and with time-resolution less than 20 picoseconds, half an order of magnitude shorter than typical synchrotron x-ray pulses. A portable 1030 nm, 500 fs fiber laser system running at 1.28 MHz and synchronized to the electron bunches is used in conjunction with a low alpha lattice providing picosecond x-ray pulses. A unique hybrid low alpha mode enables high time-resolution measurements at high average currents enabling normal user experiments to be carried out in parallel. We have demonstrated the ability to perform laser pump/x ray probe experiments in both the standard operation of the ring and the low alpha mode configuration probing bismuth, BiFeO3, and Pb(Zr)TiO3 thin films. Experiments have been run at a number of different beamlines with both hard and soft x-rays. This source represents a complimentary source to x-ray free electron lasers, enabling high rep-rate measurements at lower peak powers.



Funding Acknowledgement