射线

基本解释 (translations)

radial  ·  ray  ·  Ray  ·  Przeswietlenie

词组短语

X ray · half-line · roentgen rays

与射线相关的网络例句 [注：此内容来源于网络，仅供参考]

X-ray diffraction is one of the most common and efficient ways to measure a superlattice structure. This dissertation displays the detail results for characterization of Ge〓Si〓/Si superlattices by x-ray diffraction (including x-ray small angle diffraction and double crystal diffraction). It was found, when the growth temperature is lower, the intensities of xray small angle diffraction peaks are modulated by a periodical function, which indicates that both sets of interfaces of the superlattice is highly flat; when the growth temperature is higher, the diffraction peak intensities are simply decay with the increase of diffraction vector, which indicates that one set of interfaces is highly flat but another is not; when the growth temperature is very high, the diffraction peaks are reduced more rapidly, which indicates that both sets of interfaces are not ideal.

本文详细介绍了用X-射线衍射（包括X-射线小角衍射和双晶衍射）方法对Ge〓Si〓/Si超晶格结构特性测试的结果，尤其是发现，当Ge〓Si〓/Si超晶格的生长温度较低时，X-射线小角衍射谱峰的强度随着衍射波矢的增加而周期性调制，表明超晶格的两套界面都十分平整；当生长温度较高时，Ge〓Si〓Si超晶格的X-射线小角衍射谱峰的强度随着衍射波矢呈简单的衰减变化，对应于超晶格内有一套界面不平整的情况；当生长温度进一步提高时，X-射线小角衍射峰明显减少，表明超晶格内两套界面都不理想。

In the Chapter 1 of this thesis, we gave brief introduction to the development of X-ray astronomy observations, which is one of the most important and active parts of modern astronomy. Due to the research experiences, we introduced ASCA X-ray satellite and Chandra X-ray Observatory in more details.

X射线天文学已经逐渐成为现代天文学最为活跃的部分之一，本文首先简单介绍了X射线天文观测诞生以来的发展经历，因研究经历的原因，我们对ASCA X射线卫星及Chandra X射线天文台进行了较详细的介绍。

Radioactive decay studies have found a kinds of elements can be α or β decay and the decay into another element, while the α-decay product of -α-rays became one of the deep structure of the material means of .1911, the Rutherford and others bombarded atoms with α-rays observed wide-angle deflection to determine the nuclear structure of atoms and nuclei was first proposed the term .1919 year, Rutherford and others have also found that with α-ray bombardment of nitrogen will release the nuclear protons, this is the first time Artificial realization of a nuclear reaction, after the bombardment of nuclei with the radiation caused by nuclear reaction method to become the primary means of research in nuclear.

放射性衰变研究发现了一种元素可以通过α衰变或β衰变而变成另外一种元素，而α衰变的产物——α射线又成了人们探讨物质深层结构的手段。1911年，卢瑟福等人用α射线轰击原子、观察到大角度偏折，从而确定了原子的有核结构，并首次提出原子核这一名词。1919年，卢瑟福等人又发现用α射线轰击氮核会放出质子，这是首次用人工实现的核反应，以后用射线轰击原子核来引起核反应的方法逐渐成为研究原子核的主要手段。

The wood structures of Lauraceae were characterized by most diffuse porous; most pores solitary, less multiple and cluster pores; simple and scalariform perforation with few bars; most solitary pore; alternate intervessel pitting; most of rays multiseriate, less uniseriate; all of rays heterogeneous, mostly heterogeneous Ⅲ and Ⅱ type rays; most of axial parenchyma paratracheal type, less banded or marginal type; oil cell and mucilage cell in axial parenchyma cell or ray cell; mostly fiber tracheid and libriform fiber, less septate fiber.

结果表明：除檫木外，其它木材的管孔分布均为散孔材，具较高的单孔率；导管分子穿孔板兼有单穿孔和梯状穿孔2种或者仅具有单穿孔；导管间纹孔式为互列；导管－射线间纹孔式类型丰富，主要为刻痕状和大圆状。木射线有单列和多列射线2种类型，单列射线稀少、短，多列射线数量多；射线组织主要为异形Ⅲ和异形Ⅱ；轴向薄壁组织以傍管状为主，少数有带状或轮界状。油细胞和粘液细胞普遍存在于射线薄壁细胞或轴向薄壁细胞中。木纤维由韧性纤维和纤维管胞组成，部分树种具分隔纤维。

The latest experimental results of the focusing perfermance of the compound high-energy X-ray lens is designed with PMMA with the parameters of 40 plano-concave elementary lenses positioned in line with axial symmetry, 200 μm radius of the concave surface, 0.15 nm working wavelength, 0.5 mm geometrical aperture and 8 mm length of the compound lens and 1.3 m focus length, are briefly introduced.

报道了这种新型X射线光学元件聚焦性能的最新实验结果。设计的高能X射线组合透镜为聚甲基丙烯酸甲酯材料，包括40个相同的、顺序排布的平凹折射单元，折射单元的球面半径为200 μm，组合透镜的几何口径约为500 μm，长度约为8 mm，焦距约为1.3 m。简要描述了PMMA材料X射线组合透镜的制作技术和制作过程。并给出了X射线组合透镜聚焦性能测试实验系统和实验条件。

X-ray radiography, X-ray radioscopy and X-ray computed tomography were performed to the C preforms and C/SiC composites made by chemical vapor infiltration method. Elementary research of the simulation of X-ray nondestructive testing of C preforms and C/SiC composites was conducted. The main contents and conclusions are summarized as follows:(1) The equivalent absorption coefficients of graphite and SiC to Al (KAl/sic, KAI/C) were measured. It was found that in 35-45KV, KAl/sic=1.1~1.2 and KAl/c=0.08~0.12. That means X-ray radiography was much less sensitive to fiber defects than to SiC matrix. It was suggested that Al Image Quality Indicator would be used to evaluate the quality of X-ray radiographs of C/SiC.

本文选择X射线照相、X射线实时成像和X射线CT等三种方法对C纤维预制体及C／SiC复合材料进行了检测和研究，并对C／SiC复合材料X射线检测的计算机模拟做了初步的探索，主要研究内容和结果如下：(1)测定了C和SiC的X射线照相等效系数，在35～45KV的条件下，Al对SiC的等效系数K_为1.1～1.2，Al对C的等效系数K_为0.08～0.12，所以X照相射线检测C／SiC对C纤维缺陷不敏感，而对SiC基体缺陷敏感。

Knowledge of tungsten anode X-ray tube spectra is essential for X-ray dose control, X-ray image quality evaluation and dual-energy X-ray imaging etc. A model-based tungsten anode X-ray tube spectrum reconstruction method is presented in this paper.

X射线球管光谱信息是进行X射线曝光剂量控制、X射线成像质量评估、X射线双能量成像等必不可少的，为此本文提出一种基于模型的钨靶X射线球管光谱重建方法。

Vacuum rectifiers were made for very high voltages, such as the high voltage power supply for the 电视接收器中的阴极射线管, and the kenotron used for power supply in X射线 equipment.

真空整流器所做的如在电视接收器中的阴极射线管，和 X射线设备中电源用的 kenotron 高压电源的高电压。

X-ray ,which is excited from the X ray tube, has one wavelength scope, that is energy scope. According to the elements to be analyzed, X ray is choused by filter, and reach the sample. Atoms in the sample will absorb the X ray energy and the decay to emit the special x ray. The X ray will be collected by the collimator into the detector active area, and transferred into electron signal, the signal also will be processed in to energy spectrum and related concentration data by pulse processor with software.

从X光管通过激发Excitation发射出来一定波长范围也就是说一定能量范围的X射线，结合所需要分析的目标元素，使用滤光轮选择对应的能量范围的X射线，照射到样品上，样品中含有的元素原子电子受到激发会发射出其特征的X射线，同样通过Collimator准直器收集一定孔径的X射线进入到检测器Detector，检测器将感应到的X射线转换为电信号，电信号经过脉冲处理器Pulse Processor结合软件进一步将电信号转换成为能谱图以及相关浓度信息。

The study about the flux and index of gamma-ray loud blazars show:(1)there is significant correlation between the luminosities in gamma-ray and VLBI radio energy band;(2)there are strong anticorrelarions among the observed indices of soft X-ray, hard X-ray and gamma-ray. For the FSRQs, the whole X-ray emission was contributed by synchrotron self-Compton emission, for the HBLs, the X-ray emission was dominated by synchrotron emission while the soft X-ray emission is dominated by synchrotron emission and the SSC emission dominate the hard X-ray energy band for LBLs;(3) there are strong radio-radio and radio-optical flux correlations for the quasar 3C 273. The higher frequency emission leads those in lower frequency. The multi-band complex indices strongly correlated with the high frequency flux which implies that the object is becoming bright when the energy spectrum is harden.

通过对γ噪Blazar天体的谱指数、流量的相关研究，发现（1）51个样本blazar的γ射线光度与VLBI光度之间存在显著相关；（2）软X、硬X以及γ波段的观测谱指数之间存在较强的反相关，对FSRQs，无论是硬X射线还是软X射线的辐射都是逆康普顿辐射的贡献，而对于HBLs来说，则是同步辐射的贡献，对LBLs，在软X射线波段以同步辐射贡献为主，在硬X射线能区以逆康普顿贡献为主；（3）3C 273的射电各个波段以及光学之间存在强相关，高频辐射一直领先低频辐射，3C 273的多波段复合谱指数和高频流量之间存在强的反相关，意味着当能谱变硬时对象变亮。

与射线相关的网络解释 [注：此内容来源于网络，仅供参考]

planography X：射线体层照像术,X射线断层照像术

planogram X射线体层照片,X射线断层照片 | planography X射线体层照像术,X射线断层照像术 | plasma 浆,血浆

radioautograph：自动射线照相,放射线映像,射线显迹图

radioautogram 自动射线照片 | radioautograph 自动射线照相,放射线映像,射线显迹图 | radioautography 自动射线照相术

roentgenograph X：射线照片,X射线照像

roentgenogram X射线照片 | roentgenograph X射线照片,X射线照像 | roentgenographic cephalometer X射线测颅器

roentgenoscopy X：射线透视法,X射线检查

roentgenoscope X射线荧光屏 | roentgenoscopy X射线透视法,X射线检查 | roentgenotherapia X射线治疗,X射线疗法

roentgenotherapy X：射线治疗,X射线疗法

roentgenotherapia X射线治疗,X射线疗法 | roentgenotherapy X射线治疗,X射线疗法 | roentgen radiation 伦琴射线,X射线

uniseriate ray：单列木射线

(1)单列木射线(uniseriate ray) 仅由1列或偶尔有2列射线细胞组成的射线. 如冷杉属(Abies)、杉木属、柏木属、红豆杉属(Taxus)等. 不含径向树脂道的针叶树材木射线几乎都是单列木射线(图2-19A). (2)纺锤形木射线(fusiform ray) 多列射线或在木射线的中央,

Radiographic contrast：射线照片对比度 射线照片衬度

Radiograph 射线底片 射线照片 | Radiographic contrast 射线照片对比度 射线照片衬度 | Radiographic equivalence factor 射线照相等效系数

crystallograph; x-ray X：射线晶体分析仪;X射线检晶仪

X-ray dosimeter X射线剂量计 | crystallograph; x-ray X射线晶体分析仪;X射线检晶仪 | X-ray spectrometer X射线谱仪

X-ray spectrograph X：射线摄谱仪,X射线光谱分析仪

X ray source X射线源 | X ray spectrograph X射线摄谱仪,X射线光谱分析仪 | X ray spectrometer X射线分光计

ray, anode：阳极射线;正极射线

"阿伐射线","ray, alpha" | "阳极射线;正极射线","ray, anode" | "贝克勒射线","ray, Becquerel's"