| 1. | Reflection high energy electron diffraction method 反射高能电子绕射法 |
| 2. | Studies on the optimum beam orbit correction for high energy electron linacs 高能电子直线加速器束流轨道校正的优化研究 |
| 3. | Output doses characteristics of high energy electron beam of elekta precise linear accelerator 直线加速器高能电子束的射野输出剂量特性 |
| 4. | The measurement and analysis of output factor of lead block fields for high energy electron beam of varian 2300 c d linear accelerator 直线加速器高能电子束铅挡野输出因子的测定与分析 |
| 5. | In the paper , the electromagnetic shower and the theory of the high energy electron interacting with the material are introduced 同时本文还阐述了高能电子和物质相互作用的原理和电磁级联过程。 |
| 6. | Obtaining a high quality beam bears on many factors at the exit of a high energy electron linear accelerator ( linac ) , beam orbit effect is one of the most important factors 电子直线加速器末端良好束流品质的获得和很多因素有关,束流轨道的影响是其中重要因素之一。 |
| 7. | The ultra - thin er layers with the thicanesses in the range of 0 . 5 ~ 3 monolayer ( ml ) are formed by electron beam evaporation on si ( 00l ) substrate at room temperature in an ultra - high vacuum system . after annealing at lower temperatures , ordered simcfores form on the surface . the trallsition of the surface reconsmiction pattem from ( 2 x l ) to ( 4 x 2 ) with the increase of er coverage up to l ml is observed by the reflective high energy electron diffraction ( rheed ) and low energy electron diffraction ( leed ) 本文是关于硅( 001 )衬底与电子束淀积的铒、铪原子反应形成的超薄膜的界面与表面性质的研究,以及在该衬底上出现的共振光电子发射现象,包括了以下四个方面的工作: 1铒导致的硅( 001 )衬底上的( 4 2 )再构研究利用反射高能电子衍射和低能电子衍射,在室温淀积了0 |
| 8. | Besides , the growth of gasb expitaxy film was monitored by reflection high energy electron diffraction ( rheed ) . the rheed images and intesity oscillation are collected by computer system . it showed that the gasb film prepared in 400 was amorphous and it became monocrystalline when the temperature rose to 500 . atomic force microscope ( afm ) was applied to analyse the surface morphology of the films which were grown in diffrent growth rates or substrate temperature . the analysis were compared to simulation results . the experiment results indicated it was easy to form clusters when the rate of growth is high or 此外,本文通过反射式高能电子衍射( rheed )监测了gasb外延薄膜的生长,利用rheed强度振荡的计算机采集系统实现了rheed图像和rheed强度振荡的实时监测。实验发现在400生长的gasb薄膜为非晶态,温度升高到500薄膜转变为单晶。利用原子力显微镜对不同生长速率和衬底温度生长的gasb薄膜的表面形貌进行观察分析,并与模拟结果进行比较。 |
| 9. | Several important experiments to study neutrino oscillation in the beginning of the 21st century , such as long - base - line neurino oscillation , the idea to build a muon storage ring for producing a high energy electron neutrino beam to carry out neutrino oscillation experiment and to measure the cp violation in neutrino oscillation , are also introduced 本文还介绍了21世纪初研究中微子振荡的若干重要实验,例如长基线中微子振荡实验以及建造子贮存环来产生高能电子中微子束进行中微子振荡的实验以及测量中微子振荡时的cp破坏的设想。 |