激光产生的铝、硅、氧、铜、硒等离子体X光谱

利用长晶格的OHM晶体谱仪,从激光等离子体中获得丰富的铜、硒类氖、类氟、类钠离子的二、三、四级软X射线衍射光谱和铝、氧、硅的类氢、类氦、类锂离子一到四级谱,波长在14～40(?)之间,在此基础上,本文较为细仔地分析了各光谱结构.     

The Design of a 25-Barrel Pellet Injector with Cycle Refrigerator for the HL-2A Device

In the study of nuclear fusion, the conventional fuelling of plasma is edge gas puffing, however many experiments indicated that the fuelling efficiency of gas puffing usually degraded with increase of heat power leading the density profile of plasma control     

QGP热力学势中的屏蔽和阻尼效应

采用含有Debye屏蔽和阻尼效应的胶子谱函数, 在实时温度QCD理论的框架下计算了夸克胶子等离子体中有效二圈热力学势, 得到了依赖于胶子屏蔽和阻尼作为物理参数的解析结果. 数值计算表明, 我们的结果与格点QCD理论计算的最新结果在温度T≥2T_c时相符.     

激光等离子体探针及应用研究

本文介绍用阴影、纹影相干涉方法确定等离子体折射系数变化的原理。分析了等离子体中的非线性效应和对光探测系统的基本要求。并简要叙述了实验上采用的后向喇曼探测束,给出了等离子体干涉、纹影和阴影的测量结果。     

薄铝埋点等离子体K线光谱半定量诊断

高温等离子体系统中存在等离子体流体力学运动演化过程、离子的离化分布演化动力学过程、高剥离态离子谱发射过程及发射芬光辐射输运过程等，而且高温等离子体系统通常是非平衡系统，所以定量研究高温等离子体系统的发射X光谱和高温等离子体对X光的吸收是一个非常复杂的问题。为了模拟和解释实验测得的激光等离子体发射光谱，提出了一种薄埋点靶：直径为φ200μm厚度为0．1μm的铝点埋在20μm厚的CH膜底衬中，表面再覆盖0．1μm厚CH膜。     

脉冲放电等离子体烟气脱硫脱硝工业试验

脉冲放电等离子体烟气治理技术具有流程简单，一次投资成本低，无二次污染，可同时脱硫脱硝，形成的副产物可回收利用等特点。     

基于面阵探测器6／9MeV新型高能工业CT系统

研制成功的6MeV高能工业CT集成检测系统采用磁控管驱动的6MeV射频加速器作为X射线源，成像系统与9MeV高能工业CT相同，扫描方式采用三维锥束扫描。主要技术指标与9MeV工业CT系统接近，其空间分辨率也达到21p／mm（10％的调制度下）。     

基于射频模块MAX2740设计的高动态GPS接收机前端

基于MAX2740射频接收前端提供了从天线到数字化输入之间完备的GPS接收方案，信号通道包括了低噪声放大器（LNA）、两级下变频器、可变增益／固定增益放大器、压控振荡器（VCO）及频率合成器等。     

Deposition of Hydrogen-Free Silicon Nitride Thin Films by Microwave ECR plasma Enhanced Magnetron Sputtering at Room Temperature

Hydrogen-free silicon nitride （SiNx） films were deposited at room temperature by microwave electron cyclotron resonance （MW-ECR） plasma enhanced unbalance magnetron sputtering system. Both Fourier-transform infrared spectroscopy and x-ray photoelectron spectroscopy are used to study the bonding type and the change of bonding structures of the silicon nitride films. The results indicate that the chemical structure and composition of SiNx films deposited by this technique depend strongly on the N2 flow rates, the stoichiometric SiNx film, which has the highest hardness of 22.9 GPa, could be obtained at lower N2 flow rate of 4 sccm.     

Analytical Study of Nonlinear Dust Acoustic Waves in Two-Dimensional Dust Plasma with Dust Charge Variation

The nonlinear dust acoustic waves in two-dimensional dust plasma with dust charge variation is analytically investigated by using the formally variable separation approach. New analytical solutions for the governing equation of this system have been obtained for dust acoustic waves in a dust plasma for the first time. We derive exact analytical expressions for the general case of the nonlinear dust acoustic waves in two-dimensional dust plasma with dust charge variation.