Ontology highlight
ABSTRACT:
SUBMITTER: Zhou G
PROVIDER: S-EPMC7136262 | biostudies-literature | 2020 Apr
REPOSITORIES: biostudies-literature
Scientific reports 20200406 1
One of the key challenges in scientific researches based on free-electron lasers (FELs) is the characterization of the coherence time of the ultra-fast hard x-ray pulse, which fundamentally influences the interaction process between x-rays and materials. Conventional optical methods, based on autocorrelation, are very difficult to realize due to the lack of mirrors. Here, we experimentally demonstrate a novel method which yields a coherence time of 174.7 attoseconds for the 6.92 keV FEL pulses a ...[more]