European XFEL

World-record intensity in attosecond hard-X-ray pulses could unlock closer study of electrons in atoms and molecules

The European XFEL researchers created X-ray flashes with record intensity and fluence, enabling detailed studies of electron behavior in atoms and molecules. The pulses lasted an estimated 300 attoseconds and were focused to a tiny spot, allowing for controlled electron behavior in chemical reactions.

SourceEuropean XFEL·JournalOptica·TypeExperimental study·DateOct 16, 2026

Mapping out a transient atom

A new experiment provides insights into transient atomic states, enabling better understanding of photocatalysis, elementary steps in photosynthesis and radiation damage. The study uses high-resolution electron spectroscopy to capture a snapshot of the short-lived state produced when X-rays interact with neon atoms.

SourceEuropean XFEL·JournalPhysical Review X·DateDec 22, 2020