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SLAC at 50: still very much a going concern
John Bozek, an atomic, molecular and optical science instrument scientist at the Linac Coherent Light Source, pauses during a tour of the LCLS, a device for generating very powerful X-rays. The wrapping of aluminum foil on the left is a necessary step in restoring a high-quality vacuum to a stainless steel vacuum chamber. Photo by Michelle Le/The Almanac.

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