World's biggest X-ray laser generates first laser light
Germany-based European XFEL, the biggest X-ray laser in the world has generated its first X-ray laser light. Electron pulses were accelerated to a near-light speed in an accelerator tunnel, which was converted using X-ray generating devices to produce lasers of one pulse per second. The 3.4-km-long underground facility is capable of generating 27,000 light flashes per second, said the researchers.