The US Department of Energy's SLAC accelerator lab already has a pretty useful X-ray laser - the Linac Coherent Light Source (LCLS). But, recent modifications to the device have scientists drooling over its new found potential. Using a thin wafer of diamond, the Stanford-run lab filtered the beam to a lone frequency, then amplified it in a process called "self-seeding." That's given the world's most powerful X-ray laser even more punch by tossing out unneeded wavelengths which were reducing its intensity.
Engadget , Diamond hones DOE X-ray laser howitzer to razor-sharp precision, Diamond hones DOE X-ray laser howitzer to razor-sharp precision
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