神光Ⅲ主机双束组激光间接驱动内爆实验研究

在神光Ⅲ主机装置上,利用已经建成的两个激光束组,开展了激光间接驱动内爆物理磨合实验,是神光Ⅲ主机装置首次出中子实验。实验采用1400μm×2100μm黑腔,500μm的塑料靶丸充1 MPa的DD燃料,激光从黑腔两端55°注入。实验获得的最高中子产额为9.7×108。实验结果表明,实验黑腔的耦合效率约为50%;使用的黑腔偏长,靶丸被压缩为"薄饼形";中子产额和激光能量正相关;中子发射峰值时刻主要依赖于烧蚀层厚度。     

A New Series of Charge-assisted Hydrogen-bonded Host Frameworks Based on [Co（en）_3]~（3＋）and Dicarboxylates

A new series of metal complex carboxylates(MCC)made of [Co(en)3]3+(MC)and either 2,6-naphthalenedicarboxylic(NDC)or 4,4-biphenyldicarboxylic(BPDC)were synthesized and structurally characterized.The four new compounds have a general formula(MC)2(C)3·n(guest)with the guests of dimethylformamide(DMF)and dimethyl sulfoxide(DMSO)and water.All the structures represent a pillared-layer type,where the layer consists of MC cations,carboxylate anions or water molecules via a large number of hydrogen bonds.The layers are pillared by the organic residues of NDC or BPDC,resulting in the inclusion cavities where the guest molecules reside.Although their topological structures are similar,they crystallize in different crystal structures due to the rearrangement of pillars and hydrogen-bonded layers.     

HL—2A主机安装前的准备

HL－2A是我院在建的大科学工程。HL－2A的主要主要部件是我院从德国ASDEX拆运回来的，进行部分改进、修复和调整后将重新安装。主机安装前的相关设计、调研工作以及一些部件加工工作正在进行之中。主机安装中的真空室预装、主机基础及主机安装前应具备的条件和技术准备等问题都将逐步解决和落实。     

Microwave-promoted pure host phase for red emission CaS：Eu2＋ phosphor from single CaSO4 precursor and the photoluminescence property

We report a novel approach to obtaining a classical blue-green excitable CaS：Eu2＋ phosphor with desired red emission by microwave （MW） firing procedure in the absence of adding elemental sulphur. The disturbing effect of MW electro- magnetic field on decomposition of CaSO4 into CaS activated by europium is distinctly observed to give pure host phase without adding any elemental sulphur and carbon. The host phase evolution is observed to be highly dependent on the variation of applied MW power from X-ray diffraction （XRD） patterns and the corresponding photoluminescence （PL）, and a maximum PL intensity at 1100 W of MW power is acquired for the obtained purer host phase. The non-thermal and non-equilibrium effects by MW are revealed to correlate with the interaction between polar structure of the host and applied electromagnetic field. The results demonstrate an optional procedure to prepare this red-emitting phosphor in an effective, environment-friendly and scalable approach for phosphor production in the application of bio-illumination for plant cultivation and artificial photosynthesis.     

基于高速双端口的网络扫描系统研究

网络扫描是网络测试工作中一个非常重要的环节,为提高网络扫描速率和增强扫描功能,对双端口网络扫描系统进行了研究;该系统拟采用双端口线速数据流发送与接收相分离的方式,同时结合发送数据流字段变化、接收地址学习、接收规则过滤等技术,使其形成多种高速网络扫描功能;应用分析表明,扫描速率最高可达156万次/秒,且功能具备实用、灵活和多样化等特点。     

神光-Ⅲ主机黑腔腔形研究与设计

利用三维视角因子软件IRAD3D研究了神光-Ⅲ主机靶丸表面辐射驱动时变对称性和驱动强度随黑腔腔形和排布方式的变化。模拟结果表明:采用椭球形黑腔能显著减小黑腔壁面积从而减小腔壁能量消耗并提高靶丸消耗份额;不同腔形和排布方式下均可通过调节腔长使勒让德不对称性模P2时间积分量较小;采用双环辐照和椭球腔形都利于缩短腔长;四环排布利于调节P4分量,但环向不对称性M4较差;椭球腔双环排布能兼顾极向不对称性P2,P4和环向不对称性M4,且靶丸表面X光驱动强度相对柱腔双环提高25%~27%。     

汽车空调器压缩机用冷冻机油的研究

采用三氟化硼乙醚 (BF3·Et2 O)催化体系合成较高粘度的环氧丙烷均聚醚 ,观察了不同反应参数对聚醚粘度的影响。同时考察了不同催化剂对聚醚酯性能的影响。结果表明 ,用固体钨硅酸合成的聚醚酯较对甲苯磺酸的性能好     

HPI接口与PLX9054的逻辑实现

介绍了基于DSP的HPI接口和PLX9054芯片的特点及应用,使用ALTERA公司的CPLD-EPM7256实现了DSP芯片6701和PLX9054之间的无缝连接,并在PC机上获得了稳定的数据传输.     

神龙I号可靠性探讨

简要描述了神龙I号的可靠性模型，重点对主机的可靠性作了五个方面的定量分析，据此提出了改进可靠性的主要技术途径。特别指出在主机调试阶段应用可靠性增长规律，由低指标逐步向高指标过渡，最终实现高可靠性目的。