查询词典 collimator

Methods To take Rotating Gamma knife, Leksell-G stereotactic system, 1.0 MPI scanner scanrung and Camma-TPS planning. 1～2 focus of 4mm collimator were planed the pain side of trigeminal nerveroot. The center radiate dosage of the focus were 80～100Cy.

采用OUR-XGD／B型旋转式伽玛刀Leksell-G型立体定位仪，1.0TMRI扫描定位，Gamma-TPS规划系统，在痛侧三叉神经根部，用4mm准直器，布1～2靶点中心，中心剂量为80～100Gy。

The illumination system has a facetted light-collimator (2) for collimating light emitted by the light emitters.

该照明系统具有多面光准直器(2)，用于准直由光发射器发射的光。

Beams of light which transmit through a diffracting device 2 and a collimator lens 3 for incidence on a beam splitter 4 a are made up substantially only by P polarized light.

透过衍射装置2和准直透镜3后入射到分束器4a上的光束基本上仅由P偏振光组成。

The facetted light-collimator merges into a facetted light-reflector (3) at a side facing away from the light source.

多面光准直器在远离光源的一侧结合于多面光反射器(3)。

A laser collimator is even better for this step — just center the laser beam on the primary's center spot.

激光校准器做这一步工作更好——只要把激光束照射到主镜的中点上就行了。

Due to the TomoTherapy machine intrinsic characteristics, some mechanical items, such as the gantry, the couch angle, the collimator etc., do not need to be checked. Additionally, no electron beam verification is needed but the same beam effect can be formed from the different beamlets of the machine.

再者，由於多模式螺旋断层放射治疗仪机器的本质结构特性，有些品质保证测量项目不须实施，如在机械方面不须要做旋转臂、治疗床、准直仪之品质保证测量校正工作，所以在例行的品质保证测量工作上较为简单；此外因多模式螺旋断层放射治疗仪只有单一光子射束(6MV)，而没有电子射束所以在品质保证量测上不须测量电子射束，因而简化许多程序，但电子射束的特性可以由不同的小射束组合来达到相同的效果。

Collimator is a kind of high precision apparatus. The principle is testing tiny by optics imaging. It can be used to revise the kickstand of aircraft and the launch kickstand of missile, to check the gesture of rocket launcher.

变形测角仪是一种应用光学成像测微原理工作的高精度测试仪器，它可以被用于校正飞行器的机架和导弹发射架，检测火箭发射器的姿态。

On the basis of the theory of Gaussian light beams transmission and applying principles of matrix optics and theory of Gaussian light coupling, a theoretical equation for calculating the return loss of fiber collimator with beveled end face and GRIN lens is derived.

在高斯光束传输理论的基础上，利用矩阵光学的原理和高斯光束耦合理论得出了斜面耦合自聚焦透镜型光纤准直器的回波损耗的数学表达式。

A novel method of measuring plus lens's focus is given, which is based on LCD, CCD, and digital image processing It is also a discussion on photoelectric method of automatically measuring parameters of an optic system In this method, a LCD is used as a reticle of the collimator, while the image on the accepting side is transformed into digital image and is sent into a computer The focus can finally be calculated out through digital image processing and analysis The method of measurement is introduce...

讨论了一种基于LCD、CCD和数字图像处理的正透镜焦距测量方法，是光电法自动化测量光学系统多个参数的一种有益的探讨。用液晶屏显示分划图形取代平行光管的分划板，用CCD在接收方采集数字图像并送入计算机，通过图像处理和分析得出被测透镜的焦距。运用叠加的方法提高图像的信噪比；结合重心法和平行线拟合方法求取平行线对的间距；应用高精度焦距标准透镜标定数字图像和实际像之间的比例关系。详细介绍了测量和图像处理的方法，进行了公式推导和误差分析，并给出了实验结果

According to the above simple theory description, we get know the key parts of EDXRF, X ray tube, filter, collimator, detector, pulse processor and software.

通过以上简单的原理描述，我们知道EDXRF有以下关键部位：X光管，滤光轮，准直器，检测器，脉冲处理器，软件。

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。