1.

The world's largest and powerful X-ray laser-Electron Laser (XFEL) was unveiled in __________.

Answer» The world's largest and powerful X-ray laser- European X-ray Free Electron Laser (XFEL) unveiled in Hamburg, Germany. The XEFL is series of 3.4-kilometer tunnels up to 38 meters underground near the city of Hamburg. It has the capacity to generate extremely intense laser flashes, at a rate of 27,000 per second generated by Self-Amplified Spontaneous Emission (SASE).


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