How researchers got first direct images of defects spreading through material faster than the speed of sound (IMAGE)
Caption
To get the first direct images of how fast dislocations can travel, researchers used an intense laser beam to drive shock waves through diamond crystals. Then they used an X-ray laser beam to make a series of X-ray images of the dislocations forming and spreading on a timescale of billionths of a second. The images, similar to medical X-rays that reveal the inside of the body, were recorded on a detector.
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K. Katagiri/Stanford University
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