Guinness World Record: X-ray laser FLASH shoots fastest movie
Stefan Eisebitt/HZB
“The novel X-ray lasers will offer high speed films of ultrafast molecular processes and chemical reactions for a better understanding of these processes,” emphasises DESY's director of research Professor Edgar Weckert. At FLASH, Eisebitt and his team demonstrated the fastest imaging sequence so far. For this purpose, the scientists split the X-ray laser beam into two flashes and sent one of them via a detour of only 0.015 millimetres, making it arrive 50 femtoseconds later than the first one. Since no detector can be read out so fast, the scientists stored both images as superimposed holograms, allowing the subsequent reconstruction of the single images.
With these experiments, the scientists showed that this record slow motion is achievable. However, they did not only take the world’s fastest but probably also the shortest film – with just two images. Thus, additional development work is necessary for the use of this method in practice. “The long-term goal is to track the movements of molecules and nano structures in realtime,” Eisebitt said.
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