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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The process involved using intensive X-ray light produced at the National Synchroton Light Source in Brookhaven, N. Y.

这种方法使用了纽约布鲁克黑文的国家同步加速器光源产生的强大的X射线。

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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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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