They used a powerful X-ray source called a synchrotron, which uncovered metals within the ancient fossilised feathers.

他们使用同步加速器作为强X射线源，可以发现古化石羽毛中的金属成分。

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Three dimensional CT for the industrial pieces with large and flat size can be carried out by means of this method with a low energy X ray source.

在射线源能量较低的情况下，此法能够对大而扁的工业构件实施三维ct重建。

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Using field emission cathode, X ray source can be made with several advantages: smaller volume and brighter, high frequency response, in-time turning on, etc.

采用场发射阴极的X射线光源具有体积小，辐射强度高，频率响应快，可以随时开启，无需预热的优点。

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X-ray source around the patient, and simultaneously rotates a set of electronic receptors on the opposite side.

ECONOMIST: Chopping wood

Besides revealing clues about the lost galaxy, the black hole itself, called HLX-1 (Hyper-Luminous X-ray source 1), is scientifically interesting, researchers said.

MSN: Rare Black Hole Survives Galaxy's Destruction

"It's correlating the increasing intensity in different bands that provides really important clues about the structure of the source, " Prof Madejski - a co-investigator on the NuStar X-ray telescope, told BBC News.

BBC: Blazar Markarian 421's flare-up is cosmic coincidence