Using field emission cathode, Xraysource 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。
2
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。
3
They used a powerful X-raysource called a synchrotron, which uncovered metals within the ancient fossilised feathers.