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Scheme of the experiment: An autocorrelator developed at DESY splits the ultrashort X-ray laser pulses into two equal intensity pulses which arrive with a tunable delay at the sample. The speckle pattern of the sample is collected in a single exposure of the 2-D detector (picture: W. Roseker/DESY).

Freeze-framing nanosecond movements of nanoparticles

A collaboration of scientists from DESY, the Advanced Photon Source APS, and National Accelerator Laboratory SLAC, both in the USA have created and incorporated another technique...