| 1. | X - ray beam limiting devices
X射线束约束装置 |
| 2. | X - ray beam collimator x
射线束准直器 |
| 3. | X - ray beam stop , x
射线光束截捕器 |
| 4. | Both techniques allow precise targeting of the cancer with multiple x - ray beams , but imrt allows physicians to modulate the radiation dose intensity with far smaller radiation beams
这两种技术都可以用多重x光束对癌细胞有着精确的靶向作用，但imrt可以让医生用更少的辐射束调整放射剂量强度。 |
| 5. | To ensure the beam does not loiter on the parchment and damage it , the researchers have had to design the procedure so that the x - ray beam cannot be on when the manuscript is stationary
为了确保射线不会散射在羊皮卷上造成损坏，研究者们必须设计出一种方法在手稿处于稳定状态[ 3 ]时关闭x射线。 |
| 6. | In order to eliminate the beam - hardening artifacts , most current correction algorithms have to assume that the x - ray beam spectra are known and the mass attenuation coefficients of the detected object related to different energy are given
目前的多数射束硬化校正算法需假设已知ct系统的x射线能谱，并已知构成被测物体的物质关于不同能量的光子的质量衰减系数。 |
| 7. | The phenomenon of interference is presented when the x - ray beam hits the thin layer sample at glancing angle , the angles corresponding maximal and minimal intensity of x - ray fluorescence are described when the phenomenon of double - beam interference or multiple - beam interference is occurred
介绍了掠射x射线与薄膜样品作用时产生的干涉现象，给出了x射线双光束干涉和多光束干涉产生极值的条件。 |
| 8. | X - ray collimator subsystem is the important part of x - ray machine , and its main function is confine the scope of x - ray beam , to reduce the radiation harm to patients ; another function is realizing the multi - scope exposure on one film working with the film motion and shielding system
X光机限束器子系统作为x光机的重要组成部分,其主要用于对x光束的照射范围进行限定,以减少对患者的辐射,以及配合点片系统实现对x光胶片的多分片功能。 |
