共查询到19条相似文献,搜索用时 31 毫秒
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【美国《科学日报》2008年9月14日报道】在欧洲委员会(EC)、日本原子能研究开发机构(JAEA)和国际热核聚变实验堆(ITER)组织的支持下,欧洲的聚变研究机构“用于能源的聚变”(Fusion for Energy)已成功对铌.钛制成的ITER极向励磁线圈原型超导体进行了试验,该超导体在6.4T磁场和52kA电流下达到稳定运行。极向励磁线圈将用于维持ITER装置内部的等离子体平衡和位形。 相似文献
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<正>【本刊2010年9月综合报道】参与国际热核聚变实验堆(ITER)项目的国家最近就项目总体进度及造价达成一致,并将向该项目追加资金。2010年7月28日,ITER委员会召开了一 相似文献
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国际热核聚变实验堆(ITER)是目前世界上最大的磁约束核聚变试验堆。文章按照国家标准GB/T 13016—2018《标准体系构建原则和要求》中规定的方法,对ITER标准体系进行了研究,给出了构建ITER标准体系的原则、构建ITER标准体系的方法和步骤以及ITER标准体系结构图,介绍了ITER标准体系标准明细表的总体情况,为我国开展类似核聚变反应堆设计和建造的提供重要参考。 相似文献
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【美国《核新闻》2005年12月刊报道】参与国际热核聚变实验堆(ITER)项目的六方2005年11月7日宣布,他们已提名由日本驻克罗地亚现任大使池田(Kaname Ikeda)先生担任ITER组织的总干事。ITER组织将负责该项目的建造和运行。作为对日本退出ITER场址角逐的补偿之一,欧盟支持由日本代表出任ITER组织的总干事。池田先生在国际外交和核工程领域的经历丰富。他于1968年进入日本科技厅下属的原子能局,1984年升任该局核燃料处处长,以后又曾先后担任日本驻美国大使馆科技处顾问以及日本政府机构内多个与国际项目有关的职务,2003年被任命为日本… 相似文献
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杨卫东 《核标准计量与质量》2009,(1)
本刊讯由国家科技部基础研究司主持召开的国际热核聚变实验堆(ITER)计划专项2008年立项项目实施会于2009年2月6日在成都召开,来自全国十几家单位的50多位代表参加了会议. 相似文献
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A new method is developed for removing the nickel coating on ITER superconducting cables by mechanical polishing.The obvious advantage of the mechanical method,which uses a nylon brush,is that there is no chemical residual left in the cable,which would otherwise result in passive effects on the joint resistance.The coating resistance test results of this newly developed method are compared with those of the two other methods that can meet the requirements of ITER.An automatic polishing machine is designed and manufactured for the procedure to provide quality under precise control.This new technique can replace the conventional manual method due to its improved efficiency. 相似文献
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Bo Liu Yu Wu Jinggang Qin Feng Long Yi Shi Pierluigi Bruzzone Boris Stepanov 《Fusion Engineering and Design》2013,88(11):2802-2809
The first ITER Main Busbar (MBCN1) and Correction Busbar (CBCN1) conductor samples were manufactured in ASIPP and tested in the SULTAN facility. This paper introduces the sample manufacture, including strand, cabling, jacketing and sample preparation, and discusses the performance of MBCN1 and CBCN1 conductors. The testing results show that both samples have high Tcs, and meet the ITER requirement.Due to the ITER acceptance standard Tcs of MB conductor was changed to 6.7 K at 45.5 kA/3.9 T. The performance of MBCN1 conductor after cyclic load fits the ITER requirement, but the sample was only tested at 57 kA/2.75 T before cycling test. Using some hypothesis and equation to extrapolate the Tcs performance of MBCN1 conductor before cycling test, the result also fits the ITER requirement.For CBCN1 conductor, the central line of the central cooling spiral shifted about 1.3 mm during the cabling. The deviation causes an increase of the max self-field by about 0.005 T, which could not influence the CBCN1 conductor real Tcs performance at peak field. 相似文献
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《等离子体科学和技术》2016,18(10):1049-1054
Because the larger metallic surrounds are heated by the eddy current, which is generated by the AC current flowing through the AC busbar in the International Thermonuclear Experimental Reactor(ITER) poloidal field(PF) converter system, shielding of the AC busbar is required to decrease the temperature rise of the surrounds to satisfy the design requirement. Three special types of AC busbar with natural cooling, air cooling and water cooling busbar structure have been proposed and investigated in this paper. For each cooling scheme, a 3D finite model based on the proposed structure has been developed to perform the electromagnetic and thermal analysis to predict their operation behavior. Comparing the analysis results of the three different cooling patterns, water cooling has more advantages than the other patterns and it is selected to be the thermal dissipation pattern for the AC busbar of ITER PF converter unit. The approach to qualify the suitable cooling scheme in this paper can be provided as a reference on the thermal dissipation design of AC busbar in the converter system. 相似文献
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High vacuum is required for Vacuum Pressure Impregnation (VPI) process of large coils used in cryogenic. The defects such as dry spots and over rich resins should be minimized in large superconducting coils used. Both sealing problems associated with the mold and over rich resin problems are eliminated by using vacuum bag mold method with which we can simplify the design of vacuum mold. 相似文献
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H.Tamai G.Kurita M.Matsukawa K.Urata S.Sakurai K.Tsuchiya A.Morioka Y.M.Miura K-Kizu Y.Kamada A.Sakasai S.Ishida 《等离子体科学和技术》2004,6(3):2281-2285
Plasma control on high-βN steady-state operation for JT-60 superconducting modification is discussed. Accessibility to high-βN exceeding the free-boundary limit is investigated with the stabilising wall of reduced-activated ferritic steel and the active feedback control of the in-vessel non-axisymmetric field coils. Taking the merit of superconducting magnet, advanced plasma control for steady-state high performance operation could be expected. 相似文献
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加速器驱动嬗变研究装置(CiADS)对质子超导直线加速器提出了高稳定性要求,在工程设计阶段需对直线加速器的各种不稳定因素,特别是对超导腔的麦克风效应的影响进行评估。基于谐振系统的冲击响应模型,发展了一种离散化的电压迭代求解方法,并利用该方法构建了高频系统仿真程序,用于分析麦克风效应作用下超导腔的时变状态。通过仿真,研究了麦克风效应对腔体幅相稳定性的影响及与超导腔的谐振频率、Q值和带宽等参数的关系。结果表明,麦克风效应主要影响超导腔的相位稳定,其影响程度取决于麦克风振荡频率与腔的谐振频率、频率偏移量与腔体半带宽的比值。给出了满足CiADS直线加速器超导腔幅相稳定性指标(0.1%和0.1°)的麦克风振荡强度限值。 相似文献
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中国原子能科学研究院目前正在研制一台用于质子治疗的230 MeV超导回旋加速器。本文设计用于230 MeV超导回旋加速器的高频腔体,其采用螺旋结构,由4个腔体组成,高频系统采用二次谐波加速,高频腔体工作频率约71.25 MHz。4个半波长的电容加载型谐振腔工作于Push-Pull模式,其中两个腔体在中心平面直连,另外两个腔体在中心区下方使用过桥连接,两组腔体之间存在电容耦合,相差180°。在腔体的设计过程中,采用计算机对4腔体进行联合仿真,经优化后,腔体加速电压分布在中心区部分的为75 kV,大半径部分的提升至110 kV,腔体的无载品质因数仿真结果约8 800。为保证腔体的高频性能,腔体主体材料采用无氧铜材料,其加工难度在于上、下外壳需分别焊接成一个整体,同时要控制其形变量。目前,腔体已完成加工,单个腔体的无载品质因数的测试表明,腔体的无载品质因数均好于7 000,满足要求。 相似文献