Have Gun, Will Travel (at Light Speed)

The front third of the linac is undergoing an extreme makeover, metamorphosing into a first-of-its-kind hard x-ray free-electron laser, the Linac Coherent Light Source (LCLS). But even with the engineering magic embodied by hi-tech vacuum chambers, magnets, undulators and diagnostic equipment from top labs across the country, the LCLS will stand idle without one final, crucial piece of the puzzle: electrons.

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