本论文将窄角扇束扫描看成是多探头的平行束扫描。
This paper regards narrow fan-beam scan mode as multi-detector parallel beam scan mode.
研究它的目的是为将来的锥束扫描提供直接重建算法。
The aim of the research is to find an effective reconstruction algorithm which can be used in cone-beam ct int...
论述了电子束扫描正交图形簇产生畸变的非线性校正过程。
The process of nonlinear distortion correction of orthogonal pattern group in E-beam scanning is introduced.
惰性是慢电子束扫描光电导型摄象管的重要性能指标之一。
Image lag is one of the important characteristics of photoconductivity-type camera tubes with low-velocity electron beam.
但是，这种算法不能满足线X射线源圆轨道锥束扫描的情况。
However, this algorithm does not apply for circular orbit cone-beam scan with line-focus X-ray source.
同时利用微束扫描分析可获得样品中元素的点、线、面分布信息。
By using single point, linear and lateral scanning, the elements composition and distribution in samples can be studied in micrometer scale.
高能X射线工业CT机的图像重建属窄角扇束扫描方式下的图像重建。
The image reconstruction of industrial X-CT belongs to image reconstruction with narrow fan-beam scan mode.
本文对工业CT窄角扇束扫描方式下的迭代图像重建算法进行了研究。
In this paper, the author discusses in detail an efficient iterative image reconstruction algorithm in industrial computerized tomography (ICT) with the narrow fan-beam projection.
但是，当它们经过粒子加速器发射的电子束扫描后，聚合分子链被去饱和。
But when they are zapped with a beam of electrons from a particle accelerator, the polymer chains are desaturated.
本文通过有限元分析的方法讨论了不同电子束扫描轨迹对钎焊温度场的影响；
The influence of different EB scanning tracks on the brazing temperature field is discussed by the finite element analysis method.
本文提出的中间函数重建算法，是一种可以应用于扇束和锥束扫描的图像重建算法。
A new kind of ct image reconstruction algorithm named Intermediate Function algorithm is presented in this paper. This algorithm can be used both in fan-beam and cone-beam scan.
用电子束扫描加热的方法对具有毛细管板接头的不锈钢结构件进行钎焊是非常有效的。
It is very effective to use the scanning electron beam (EB) heating to braze the stainless steel structural part with capillary-to-plate joints.
介绍了以DX -3扫描电镜为基础，利用SDS -2电子束扫描系统改装其偏转系统。
The deflection system of DX 3 has been rebuilt with SDS 2 system.
在介绍了工业CT的几种扫描方式的基础上 ，较详细地分析了窄角扇束扫描方式下的数据重排方案。
On the basis of introducing several ICT scanning methods, this paper analyses in detail the data-rearranging plan when the method of narrow-angle sector scanning is used.
利用该系统可对电子束扫描轨迹、扫描频率以及加热区域电子束能量密度的分配进行离线编辑和在线调节。
The EB scanning track, scanning frequency and energy density distribution at heating zone could be programmed off-line and adjusted on-line.
电子束扫描均匀度是辐照电子直线加速器的重要指标之一，采用无偏估计方法对电子束的扫描均匀度作校正是一种有效的方法。
The uniformity of electron beam scanning is one of the important indices of linear accelerator. Unbiased estimation is an effective method for scanning uniformity calibration.
图集的后续发行图片中，这张3d视图融合了结构MRI(核磁共振)扫描结构图以及其他图像数据显示出了神经纤维束的位置。
In another screenshot to be included in a later iteration of the atlas, a single 3-d view merges structural MRI scans with other imaging data showing the locations of the nerve fiber tracts.
这项技术将一束密集的X光对准留有指纹的物体表面，并根据扫描结果创建出计算机图像。
The technology focuses a tight beam of X-rays on surfaces with fingerprints and creates a computer picture out of those scans.
这幅显微照片是通过扫描穿过样品的电子束而获得的，同时检测器对从样品表面反弹的电子进行追踪，这些电子显示了标本的外形。
This photomicrograph was obtained by scanning a beam of electrons across the sample while a detector kept track of electrons bouncing off its surface, betraying the specimen's outer shape.
扫描电子显微镜是通过扫描聚焦在物体上的电子束来工作的。
The microscope works by scanning a focused beam of electrons across an object.
只有相对原始状态的材料才拥有兰德曼所需要的研究对象，因此他的研究小组必须使用利用电子束表面成像的扫描电子显微镜(下图)去寻找最好的珍珠层。
Only relatively pristine material has the goods Landman is after, so his team USES a scanning electron microscope (below), which utilizes a beam of electrons to image surfaces, to find the best nacre.
载片必需放在真空内，是为了确保扫描其表面的电子束不会受到任何妨碍。
The slide must be in a vacuum to make sure that the electron beamused to scan its surface does not come into contact with anyobstructions.
以明确的物理意义详细分析和讨论聚焦、扩束准直、扫描显示等光学系统的设计。
Design of optical system for the focusing, the collimating and the scanning is analysed and is discussed with precise physical meaning.
该系统使用了介质分束片，可以方便地进行散射角扫描。
Dielectric beam splitter was employed in this system, which facilitates the scan of scattering Angle.
扫描电子显微镜是通过扫描聚焦在物体上的电子束来工作的。
Thee microscope works by scanning a focused beam of electrons across an object.
本文介绍了四束激光扫描照排机，照排机内安装有四支氦氖激光器及四个声光调制器。
This paper describes a phototypesetter with four scanning laser beams. There are four He-Ne Lasers and four acoustooptic modulators in the phototypesetter.
提出了一种基于面阵CCD器件，采用光纤和光纤面板进行光耦合及传输的扇形束线阵扫描X射线新型探测器技术。
Optical coupling and transmission performing with optic fiber and fiber optic face plate, a new sector beam linear array scanning X-ray detector technique based on plane array CCD devices is proposed.
给出了能量、流强、扫描均匀性、扫描长度以及束斑形状等5个重要参数的测量方法及结果。
The methods and results for the 5 main parameters of energy, beam current, dose uniformity, beam scanning width, and beam profile were given.
采用数字扫描变换技术和数字声束形成技术的超声诊断设备被称为全数字超声诊断设备。
The ultrasound diagnostic equipment using the technologies of digital scan conversion and digital beam forming is defined as the digital ultrasound diagnostic equipment.
采用数字扫描变换技术和数字声束形成技术的超声诊断设备被称为全数字超声诊断设备。
The ultrasound diagnostic equipment using the technologies of digital scan conversion and digital beam forming is defined as the digital ultrasound diagnostic equipment.
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