查询词典 luminous beam

A beam profile diagnostic system of high current, short pulse electron based on Cerenkov radiation is introduced.

介绍了一套基于切伦科夫辐射的、用于强流短脉冲电子束束剖面测量的装置。

The disadvantages of the uniform slow-wave structure in Cerenkov beam-wave interaction are analyzed.

分析了切伦柯夫束波相互作用中使用单段慢波结构的缺点。

Cerenkov radiation signals produced by thin quartz foil placed in the beam path are detected with streak camera.

装置利用扫描相机记录背面打毛的石英玻璃薄片中产生的切伦科夫光信号。

Experiments confirming Cerenkov radiation and time resolved beam profile measurement are realized with this system on the 2MeV injector of CAEP.

使用该装置，在中国工程物理研究院流体物理研究所的2MeV注入器上进行了切伦科夫光的验证实验和时间分辨的束剖面测量实验。

It is shown that its working frequency and linear growth rate are higher than thatof common Cerenkov FEL,and for the same injection current,the linear growth rate of thissvstem and common Cerenkov FEL either decrease with increase of the gap between the dielectricand electron beam or there is an optimum gap value corresponding tO the maximum growth rate.

发现在入射电流和波导结构一定时，该系统和普通切伦柯夫自由电子激光器的增长率并不是随随电子束与介质的间距的增加而减小，而是存在一个最佳值。

High-current short-pulse electron-beam ; Cerenkov radiation ; CCD camera ; Linear induction accelerator

强流短脉冲电子束；切伦科夫辐射； CCD相机；直线感应加速器

To solve this problem, a multi-electron-beam Cherenkov free -electron laser was proposed and theoretically analyzed. A MCFEL oscillator experiment was carried out to demonstrate its feasibility and advantages.

为了验证多电子束契伦柯夫自由电子激光的可行性和优越性，我们开展了多电束契伦柯夫自由电子激光振荡器联合实验研究。

The research of raising ELF/VLF generation efficiency is summarized,especially the theoretical research and application of "beam painting" technique.

总结了提高ELF/VLF产生效率等问题的进展情况，尤其是&波束扫描&技术的理论研究和应用发展。

It utilizes the knowledge of nuclear physics, photo-electricity, polymer physics, computer technology and mathematics synthetically, the polymer morphology in solid conveying can be visually obtained by the interaction of polymer atom or polymer chain and the photon beam caused by γ-ray, in which the photoemission, Compton effect and electron pair effect will be generated.

该方法综合运用核物理学、光电子学、高分子物理、计算机技术和数学知识，通过γ-射线的光子流与聚合物原子、聚合物链段相互作用所产生的光电效应、康普顿效应和电子对效应，来图像化地测量固体输送段的聚合物形态。

A method for crack identification of a Timoshenko beam by means of wavelet analysis of modal parameters is presented.

该方法对Timoshenko梁裂缝识别的工程应用具有参考价值。

According to our present broadcasting situation,the thesis proposes using new technology to update and reform the present HFC. It also suggests broadcasting using self-advantage and arranging EPON in order to win the supermarket.

论文从我国广电的现状出发，结合实际，积极倡导采用新技术更新、改造我国现有的HFC网络；倡导广电现阶段利用自身优势，部署EPON网络来赢取市场。

A new general kinetic equation was derived in which the effect of the removal of condensation water was taken into account completely, and was applied to the polyesterification kinetic study of AA/HPHP and AA/NPG. It was found that the reaction order of self-catalyzed polyesterification was not constant. For these polyesterifications, the reaction order was 2.5 at a low temperature, while 3.0 at a high temperature.

考虑缩合水的排除对反应体系的影响，用体积浓度单位推导出一个新的聚酯反应总包动力学方程，并应用到AA/HPHP和AA/NPG两个聚酯化反应的动力学研究中，研究发现，自催化聚酯反应的反应级数并不是固定值，对于AA/HPHP和AA/NPG两个聚酯化反应而言，低温时反应级数为2.5，高温时反应级数为3.0。