同步加速器束流能量自动切换控制系统

带电粒子放射治疗中3D主动治疗方式需要不同的束流能量照射不同的病灶切面，这就需要同步加速器控制系统能实现多级束流能量的自动切换控制并提供接口对接治疗计划进行自动变能控制。本文开发了同步加速器束流能量切换控制系统，同步加速器的前端服务器中存储着执行1个同步加速器加速周期所需的全部控制数据集，其中控制数据通过索引标号对其进行区分，同步事例信息是同步加速器多级束流能量切换的触发信号。当前端控制器被同步时间系统的同步事例触发激活后，从DSP波形发生器的SDRAM空间中读出磁铁电源、高频等控制数据进行数据切换。同步事例信号包含同步触发信息、束流能量控制数据的索引信息和控制数据的更新操作信息。多级束流能量自动切换控制系统能实现255级束流能量间自动切换控制（碳束能量在50～500 MeV间切换，步长可控制在1.77 MeV），完全能满足实际中碳束能量在50～500 MeV间以10 MeV为步长的自动切换控制。     

并行设备总线电源控制系统设计

为实现CSRe试验环磁铁电源的控制同步，采用32位ARM内核芯片技术结合DSP控制板方式，稳定可靠地实现控制数据流的传输和同步事例的收发。同时通过CPLD逻辑时序编程来设计eVME正背板总线系统。本系统用嵌入式网络和并行总线技术可靠稳定实现数据的快速获取与给定。     

北京同步辐射装置X光光刻束线监测系统

本文介绍了安装在北京同步辐射装置（BSRF）3B1束线上的自制同步辐射光束在线监测系统，对光束垂直位置，光斑均匀性及光刻曝光量（同步光积分光强）实现了在线监控，给出了实时在线测试结果。     

用非线性反馈函数法研究蔡电子线路的混沌同步

应用非线性控制的基本思想及李雅普诺夫函数方法，将解析与数值法相结合对著名的蔡电子线路，找到了一些非线性反馈函数并实现了混沌同步。该方法具有同步时间短、适应性较广，对某些非线性系统较为简便、有效等优点。     

复数Lorenz-Haken系统中的超混沌同步及其控制(英文)

以描写失谐单模激光特性的复数Lorenz-Haken系统及其高阶级联系统作为第一个典型例子,首先实现了存在驱动-响应关系类型的超混沌同步,并采用间歇正比于所有系统主变量反馈控制法,实现了超混沌的有效稳定控制。引入的思想方法及概念可以拓广到其他超混沌系统的同步及其控制。指出了混沌同步、超混沌同步及其控制可能的实际应用前景,诸如在激光、等离子体、电子学、密码学、通讯、化学和生物系统等领域中的可能应用潜力。     

高精度同步数据获取系统的研制

在磁铁电源研制等多种应用场合需同步测量多个信号,同时要求测量数据要有较高的精度。利用高精度模数转换器AD7960实现高精度数据获取,使用可编程门阵列(Field-Programmable Gate Array,FPGA)进行逻辑控制实现同步触发控制,研制出了高分辨率同步数据获取系统。分别针对高精度和同步性能进行测试和分析,得出系统的实际有效分辨率高于18位,并验证了系统能够实现高性能的同步数据采集。结合实际应用,进一步验证了系统的性能优势。     

基于CSNS壁电流探测器数据采集的定制示波器的研制

壁电流探测器是观测粒子加速器瞬时束流信息的一种重要手段。中国散裂中子源（CSNS）快循环同步加速器中安装了两个壁电流探测器，其中一个壁电流探测器用来测量束流的微脉冲信息。本文介绍了壁电流测量系统的硬件和软件，鉴于传统示波器在垂直分辨率及存储深度等方面的局限性，提出了一种定制示波器来进行壁电流的信息读取，并利用LabVIEW编程实现了20 ms内束流信息的宏脉冲读取及微脉冲结构的分析，使用同步的环高频信息分析能得出快循环同步加速器中双束团关于相位、圈数、每圈束团形状等方面的相关信息。     

重离子加速器同步定时触发系统的实现

同步定时触发系统是重离子同步加速器的控制核心,控制磁场电源对带电离子束进行同步加速,其对可靠性和定时精度要求高。在重离子治癌、材料辐照等领域的发展中,为了满足这些领域对重离子同步加速器小型化的需求,本文以NIOSII为核心处理器,结合FPGA上的可编程片上系统（SOPC）,实现了一种基于可编程硬件的同步定时触发系统。该系统可控制延时精度,且使用灵活、可靠,易升级,向小型化的同步加速器及重离子治癌等应用工程提供了切实可行的方案。     

安全检查用螺旋CT扫描同步控制研究

螺旋CT安检系统中平移运动和旋转运动的同步,以及旋转运动与探测数据采集的同步问题,是实现螺旋CT的关键问题之一,也是螺旋CT控制系统设计的难点之一。本文针对一种多线阵螺旋CT安检系统的设计要求,提出了一种实现平移和旋转运动同步,以及旋转运动与探测数据采集的同步控制方法。设计了一种工业计算机控制,磁栅位置检测,交流伺服电动机和滚筒电机分别驱动旋转轴和平移轴的同步运动控制系统。该控制方法能够有效地解决平移运动和旋转运动的同步,以及旋转运动与探测数据采集的同步问题,具有可行性和经济实用性。     

同步磁阻电机型控制棒驱动机构矢量控制技术研究

针对同步磁阻电机型控制棒驱动机构（CRDM）电磁高度耦合难以对输出力矩进行有效线性调节的问题,研究了同步磁阻电机型CRDM的矢量控制技术。将同步磁阻电机CRDM的数学模型映射至同步旋转坐标系内,对输出电磁力矩与磁链进行解耦。通过励磁电流与力矩电流的独立调节,实现输出力矩的线性控制。利用MATLAB/SIMULINK搭建了同步磁阻电机型CRDM的矢量控制模型,对控制方案进行验证。仿真结果表明,本研究的控制方案具有更优的响应速度、稳态精度以及平稳性。      

Research on the phase adjustment method for dispersion interferometer on HL-2A tokamak

A synchronous demodulation system is proposed and deployed for CO_2 dispersion interferometer on HL-2 A,which aims at high plasma density measurements and real-time feedback control.In order to make sure that the demodulator and the interferometer signal are synchronous in phase,a phase adjustment(PA) method has been developed for the demodulation system.The method takes advantages of the field programmable gate array parallel and pipeline process capabilities to carry out high performance and low latency PA.Some experimental results presented show that the PA method is crucial to the synchronous demodulation system and reliable to follow the fast change of the electron density.The system can measure the lineintegrated density with a high precision of 2.0?×?10~(18)m~(-2).     

反应堆压力容器螺栓孔与螺栓连接件专用检修设备

简要叙述了中国核动力研究院进行的核岛专用检修设备的研制工作,描述了反应堆压力容器（ＲＰＶ）螺栓孔与螺栓连接件的检修工艺流程,围绕该工艺流程,从功能,结构,特点等方面介绍了为大亚湾核电站研制的ＲＰＶ法兰模拟体,螺栓孔螺纹闭路电视（ＣＣＴＶ）自动检查仪,螺栓孔螺纹膨胀梳刀,螺栓孔螺栓面抛光机,螺栓孔螺纹面上油机,螺栓孔螺纹铣削机,螺栓孔螺纹观察镜及螺栓螺母清洗机,并对专用检修设备的实际使用情况作了介绍     

乏燃料组件提升翻转机结构设计及动力学分析

为实现乏燃料组件提升和翻转动作同步进行，本文设计了基于双导轨提升翻转同步机构的提升翻转机，并在结构中设置安全防坠单元，保证紧急情况下乏燃料组件的安全性。为进一步保证乏燃料组件在提升、下降正常工况和钢丝绳断裂异常工况下的结构安全问题，以双导轨提升翻转同步机构为研究对象进行了动力学仿真分析，使用ADAMS软件分析其多体机械系统关键部件的运动规律与运行中复杂的受力特性，获得了不同工况下设备运行全程的速度及加速度特性曲线。结果表明：双导轨提升翻转同步机构工作时乏燃料组件所受的冲击力小于10 kN，翻转提升过程中翻转料仓的速度波动小于10%，仿真结果验证了系统设计的合理性和可行性。     

甲状腺功能仪数据处理机

我们研制的甲状腺功能仪数据处理机是为了代替医用核电子仪器44-1型闪烁甲状腺功能测定仪的脉冲计数和计算部分的电路。为了简化测定程序,在不减少该仪器原有功能的前提下,本工作采用了集成器件取代原有的晶体管电路,使之消除在计算上的误差,工作可靠,故障率减少,操作方便,同时配有VOESA-1871计算器打印机,可立即自动打印出计算结果。     

用于非弹性散射谱和俘获谱测量的高压脉冲电源设计

设计了用于非弹性散射谱和俘获谱测量的时间、幅度可调离子源脉冲电源。采用单端正激式结构和软开关技术，逆变输出高压脉冲，占空比从0．1～0．5可调，最小脉宽8μs。目前该脉冲电源已成功应用于煤质快速分析仪中，测量精度明显优于直流方式。     

Remote Control for the HT-7 Distributed Data Acquisition System

HT-7 is the first superconducting tokamak device for fusion research in China. Many experiments have been done in the machine since 1994, and lots of satisfactory results have been achieved in the fusion research field on HT-7 tokamak^[1]. With the development of fusion research, remote control of experiment becomes more and more important to improve experimental efficiency and expand research results. This paper will describe a RCS (Remote Control System),the combined model of Browser/Server and Client/Server, based on Internet of HT-7 distributed data acquisition system (HT7DAS). By means of RCS, authorized users all over the world can control and configure HT7DAS remotely. The RCS is designed to improve the flexibility, opening, reliability and efficiency of HT7DAS. In the paper, the whole process of design along with implementation of the system and some key items are discussed in detail. The System has been successfully operated during HT-7 experiment in 2002 campaign period.     

KD——418XVI型微机核子秤配料系统

ＫＤ－４１８ＸＶＩ型微机核子秤配料系统是以工业ＰＣ３８６为主机的物料流量控制系统，可愉同时对１６台秤体进行计量或配比控制，本文叙述了该系统的原理，功能，硬件结构及软件设计。     

Non-superconducting magnet structures for near-term, large fusion experimental devices

Water cooled copper magnets provide a means of producing high magnetic fields for tokamaks using a well developed existing technology. The basic function of these magnets is to provide reliable, both time varying and steady state, magnetic fields. Copper electrical properties, insulation, and water cooling systems play major roles in design selection. Aside from being electro-magnetic devices, coils designed for tokamaks must be self-supporting structures, capable of resisting large I × B magnetic forces. These magnets require the integration of both electrical and structural design considerations.Magnet integrity is enhanced by the presence of structures which lend additional external support. These external structural systems are highly stressed and, often, deflection limited.This paper describes the magnet and structural design in the following American tokamak devices: the Princeton Large Torus (PLT), the Princeton Divertor Experiment (PDX), and the Tokamak Fusion Test Reactor (TFTR). The Joint European Torus (JET), also presented herein, has a magnet structure evolved from several European programs and, like TFTR, represents state of the art magnet and structure design.The PLT device was designed in 1971 as a high plasma current tokamak. At the time it incorporated the latest in copper magnet and structure technology. Design features on this machine have in some fashion subsequently been incorporated on every major device built within the tokamak fusion community.     

中国实验快堆换料机控制系统设计及台架调试

换料机是中国实验快堆的换料设备,主要通过抓手和导向管的配合运动,实现堆芯组件的抓取和插放。换料机控制系统采用了可编程控制器、数字直流调速器等自动化电气设备。通过换料综合试验台架调试,控制设备运行稳定、可靠,验证了换料机控制系统的设计满足技术规格书及工艺要求。     

Magnetic diagnostics for magnetohydrodynamic instability research and the detection of locked modes in J-TEXT

Magnetohydrodynamic(MHD) instabilities are widely observed during tokamak plasma operation. Magnetic diagnostics provide important information which supports the understanding and control of MHD instabilities. This paper presents the current status of the magnetic diagnostics dedicated to measuring MHD instabilities at the J-TEXT tokamak; the diagnostics consist of five Mirnov probe arrays for measuring high-frequency magnetic perturbations and two saddle-loop arrays for low-frequency magnetic perturbations, such as the locked mode. In recent years, several changes have been made to these arrays. The structure of the probes in the poloidal Mirnov arrays has been optimized to improve their mechanical strength, and the number of in-vessel saddle loops has also been improved to support better spatial resolution. Due to the installation of high-field-side(HFS) divertor targets in early 2019,some of the probes were removed, but an HFS Mirnov array was designed and installed behind the targets. Owing to its excellent toroidal symmetry, the HFS Mirnov array has, for the first time at J-TEXT, provided valuable new information about the locked mode and the quasi-static mode(QSM) in the HFS. Besides, various groups of magnetic diagnostics at different poloidal locations have been systematically used to measure the QSM, which confirmed the poloidal mode number m and the helical structure of the QSM. By including the HFS information, the 2/1 resonant magnetic perturbation(RMP)-induced locked mode was measured to have a poloidal mode number m of ～2.