Using field emission cathode, Xray 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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And it has higher operating frequency than gas target soft X-ray sources whose nozzle is controlled by a solenoid valve.
与喷嘴由电磁阀控制的气体靶激光等离子体软x射线源相比，它有较高的工作频率。
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Objective To analyse a series of breast cancer images in high frequencyXray for more accurate diagnosis of breast cancer.