Team harnesses intense X-ray beam, observes unusual phenomenon for the first time

31 agosto 2015

Physicists have used an X-ray free-electron laser — one of two in the world — to induce two X-ray photons to simultaneously collide with an atom, converting them into a single, higher-energy photon.
http://www.sciencedaily.com/releases/2015/08/150831163845.htm

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