In this paper a method for quantitative determination of spectral distributions of primary radiation from X-ray tubes for diffraction and X-ray fluorescent spectral analysis is presented .

本文提出了衍射或荧光分析用的 X 射线 管原级 X射线谱强度分布的定量测定方法。

The demands of rotating anode X-ray tubes used for CT on Chinese market are introduced and a proposal how to join in this field is presented .

阐明了我国CT机对旋转阳极 X 射线 管市场的需求，并提出了切入此领域的建议。

Dual energy output by two x-ray tubes improves the differentiation of body tissues clinical application and lesion diagnostic accuracy of CT . Explore the new way of developing the ability of project management

同时，双 球 管可同时输出不同能量的 X线，提高了CT对不同组织的鉴别能力，拓展了CT的应用范围，提高了对病变诊断的正确性。项目管理能力拓展新思维探索

Energy-dispersive X-ray spectroscopy ( EDX ) and selected-area electron diffraction ( SAED ) analyses pro-vide definite evidences for asbestos fibres encapsulated by carbon tubes .

内部的石棉纤维及其外部的碳 管均经过 X 射线能量损失谱（EDX）的成份分析及选区电子衍射（SAED）的结构分析加以证实。

The X-ray tubes adopted in pseudo dual-energy systems produce X-ray photons with continuous energy spectra which results in the decrement of the correctness of object classification based on traditional dual-energy transmission models because of the thickness effect .

伪双能系统的 射线源产生的是连续能谱的X射线，因此基于传统双能透射模型的物质鉴别方法由于受到物体的厚度影响而导致准确性的降低。

The determination of the resolution limit and the equivalent focal spot size of X-ray tubes by the 2 ° star test pattern

应用2°星模测试卡对 X线 管焦点的极限分辨率和等效尺寸的测试

Using this method the spectral purity of a number of X-ray tubes was determined .

用这一方法，对许多 X 射线 管进行了测定。

The dual source computed tomography is equipped with two X-ray tubes and two corresponding detectors . With its 83 ms-temporal resolution of single segment reconstruction high quality coronary artery CT angiography can be acquired without heart rate control .

双源CT具有双球 管和双组探测器，其单扇区重建时间分辨率可达 83ms，可在不控制心率的情况下获得高质量的冠状动脉血管图像。

The resolution limit and the equivalent focal size of X-ray tubes are two important parameters that evaluate the imaging performance of the focal spot .

X线 管焦点的极限分辨率（L.p/mm）和等效尺寸是评价 X线 管焦点成象特性的两个重要的参量。

Radiation from X-ray tubes with a source size of the order of micrometer is also applicable for X-ray phase-contrast imaging ( XPCI ) because of its fairly good spatial coherence .

光源点尺寸达微米量级的 X 射线 管辐射具有较好的空间相干性，也可用于相衬成像研究。

In this paper a method for quantitative determination of spectral purity of X-ray tubes for diffraction analysis is presented .

本文提出了衍射分析用的 X 射线 管谱线纯度的定量测定方法。

The fourth-generation ultra-sophisticated ultra-thin window of X-ray tubes improved analytical sensitivity ;

第四代超尖端、超薄窗 X 射线 管，提高分析灵敏度；

Besides the high voltage technique is instrumental in lengthening the service life of X-ray tubes .

此外，使用高电压技术还有利于延长 X 射线 管的使用寿命。

Method : Apply the X-ray intervention SSG and FTR to 209 tubes of 108 patients .

方法应用 放射介入技术，对 输卵 管性不孕患者108例的209条输卵 管进行SSG和FTR。

Protective casing for X-ray tubes

白炽定心 装置， X 射线 设备 用

Exploration and Practice in the Development of X-Ray Tubes with Small Focuses

小焦点 X 射线 管研制开发中的探索与实践

For the fluorescent X-ray tubes several spectral distributions of different directions of primary X-ray beam must be determined and then the mean values of these data are calculated in order to obtain the effective spectral distributions .

对荧光 X 射线 管还应测定几个射线束方向的原级谱加以平均求得有效原级谱。

Electric light bulbs and X-ray tubes are made with a vacuum which makes them more efficient .

电灯泡和 x- 光 管是利用真空原理制造出的，而且真空使其效率提高。