射线聚焦来自体外称作外射线术的放射源。
Radiation focused from a source outside the body is called external beam radiation.
射线聚焦组合透镜是一种利用折射效应对X射线辐射聚焦的新型元件。
The X-ray compound lens is a novel optical device that focuses X-ray radiation by refraction effect.
给出了基于衍射理论的评价X射线聚焦组合透镜三维聚焦性能的理论方法。
Based on diffraction theory a theoretical method for evaluating the three-dimensional focusing performances of the compound X-ray lenses is presented.
但是X光射线图像本身也有自己的问题，比如X光射线难于聚焦，甚至在使用矫正透镜的情况下也难于控制。
But X-ray imaging has its own problems, with X-rays difficult to focus or manipulate even with corrective lenses.
纳米探针通过聚焦强X射线激发样品，然后收集发射出的特征荧光。
The nanoprobe excites the sample with a strongly focused X-ray beam and collects the characteristic fluorescence signal that is re-emitted.
本文采用将高斯波束法，射线追迹和矢量衍射积分相结合的方法来分析单波束的点聚焦透镜天线。
We adopted Gaussian beam, ray tracing and vector diffraction integration together to analyze single beam spot-focusing lens antenna.
基于射线声学的虚源法，通过具体算例，分析了典型声源声聚焦引起的测量误差。
Here the measurement errors due to acoustic focusing of typical sound sources are analyzed by detailed examples based on the method of image sources in the Ray Theory.
新型低强度X射线影像系统主要是由平板式单近贴静电聚焦X射线像增强器和CCD数据采集系统构成。
New structure of a low intensity Xray image system is mainly made of plane plate mode Xray intensifier of single proximity focus and CCD data acquisition and processing system.
射线毛细管光学透镜是一种非常重要的X射线器件，可以有效地实现X射线的聚焦和准直。
The X-ray capillary optics lens, which is an important X-ray device, can be used to implement the focusing and collimation of X-ray effectively.
焦点的尺寸大小及聚焦质量直接影响X射线机透视、摄影图像的清晰度；
The focal spot sizes can immediately influence picture definition when X-ray machine carry through clairvoyance and photography.
软x射线波带片是软x射线光学中聚焦、色散和成像的重要元件。
Soft X-ray zone plate is an important element which has the function of concentration, dispersion and imaging in soft X-ray optics.
众所周知的是医学用的X射线，但是它们并不是聚焦成象的——只是光线通过身体投下的影子，利用的是1895年威廉·伦琴率先发明的技术。
Medical X - rays are well - known, but they are not focused images castray discoverer Wilhelm Roentgen in 1895.
利用简单的一维模型，计算出X射线经微通道板后的反射效率等一系列聚焦参数。
Using simple one-dimensional model, the parameters of the focusing properties such as the reflection efficiency can be calculated.
利用简单的一维模型，计算出X射线经微通道板后的反射效率等一系列聚焦参数。
Using simple one-dimensional model, the parameters of the focusing properties such as the reflection efficiency can be calculated.
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