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Design of a variable frequency comb reflectometer system for the asdex upgrade tokamak

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Plasma Science and Technology 2020年第6期22卷 8-14页

作者： T HAPPEL W KASPAREK P HENNEQUIN K HÖFLER C HONORÉ the asdex upgrade team Max-Planck-Institut für Plasmaphysik Boltzmannstr.285748 GarchingGermany IGVP Universität StuttgartPfaffenwaldring 3170569 StuttgartGermany Laboratoire de Physique des Plasmas CNRSÉcole PolytechniqueSorbonne UniversitéF-91120 PalaiseauFrance Physik-Department E28 Technische Universität MünchenJames-Franck-Str.185748 GarchingGermany 不详

Comb reflectometers offer the advantage of measuring several radial positions in plasma *** allows for the investigation of fast timescales during L-H transitions,I-phases,I-mode bursts,transients during heat wave propagation,etc.A drawback of many present-day systems is that they use a fixed frequency difference between the probing ***,although the central probing frequency can be varied,the probing frequency difference is usually *** new design presented in this work uses an advanced microwave generation and detection scheme,which allows for arbitrary probing frequencies and probing frequency separations.

关键词： reflectometry microwaves plasma diagnostic reflectometer turbulence

Progress Toward Steady-State Operation on Tore Supra

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Plasma Science and Technology 2004年第1期6卷 2101-2108页

作者： J.Jacquinot G.T.Hoang on behalf of the Tore Supra team Euratom-CEA Association CEA/DSM/DRFC CEA Cadarache F-13108 Saint-Paul-Lez-Durance FranceEuratom-CEA Association CEA/DSM/DRFC CEA Cadarache F-13108 Saint-Paul-Lez-Durance FranceEuratom-CEA Association CEA/DSM/DRFC CEA Cadarache F-13108 Saint-Paul-Lez-Durance France

Important technological and physics issues related to steady-state operationrequired for next step are being examined on Tore Supra, after a major upgrade of internalcomponents in order to increase the heat extraction capability to 25 MW for 1000 s. Here, we showfirst experimental results, where all the plasma facing components were actively cooled duringpulses exceeding four minutes, with reactor-relevant heat load. New physics was observed innon-inductively driven plasmas, including a stationary peaked radial profile of the plasma densitygenerated by an anomalous inward pinch; and a regime characterized by sinusoidal oscillations ofcentral electron temperature, governed by non-linear coupling between heat transport and plasmacurrent analogous to a predator-prey mechanism.

关键词： steady-state operation tore supra, non-inductively driven plasma

HIRFL Operation and upgrade

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近代物理研究所和兰州重离子加速器实验室年报：英文版 2003年第1期 123-125页

作者： HIRFL team

After almost one year shutdown for upgrading the vacuum chamber of the iniector SFC,SFC has been in operation separately since May 2003. The SFC operation statistics and accelerated heams from May to December 2003 are shown in Table 1 and 2. The main cyclotron SSC has beenfor still shut down in 2003 for upgrading the SSC power supply system, control and diagnostic system, and themain experimental area, LECR3, an ECR ion source dedicated for atomic physics and surface physics research, has provided 2488 hours beams for experiments of atomic physics research.

关键词： HIRFL 操作装置回旋加速器粒子物理学电子束

HIRFL Operation and upgrade

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近代物理研究所和兰州重离子加速器实验室年报：英文版 2004年第1期 139-139,141,142页

作者： HIRFL team

1. HIRFL Operation HIRFL accelerator complex was fully in operation in 2004. The main cyclotron SSC has been operated since July, 2004 after some time shut-down for upgrading the SSC power supply system, control and diagnostic system, and the main experimental area. The statistics of HIRFL operation time and beams delivered from HIRFL in 2004 is shown in Tables 1 and 2 respectively. During HIRFL operation in 2004, beam intensity from SFC typically 1-10 eμA, and from SSC typically a few hundred enA, such as 22Ne10+ 70 MeV/u, about 500 enA.

关键词：兰州重离子加速器运行时间南南合作回旋加速器供电系统诊断系统束流强度试验区

HIRFL Operation and upgrade

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IMP & HIRFL Annual Report 2004年 162-163页

作者： HIRFL team

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China-Latin America Belt and Road Cooperation: Challenges and Paths for In-Depth Progress

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China International Studies 2020年第5期65卷 107-127页

作者： Project team at the Institute of Latin American Studies,CICIR Project team at the Institute of Latin American Studies CICIR

Amid profound changes unseen in a century,the international community is faced with an ever more complex and volatile situation,as typified by the increasingly intense competition among the world’s great *** this context,China is focused on developing stable and reliable global ties with major *** America,for example,with its large number of developing countries,has become a crucial partner for China to expand its South-South *** progress between the two sides has led to positive outcomes in recent ***,Latin America has not only become a major priority for China’s diplomacy,but China has also fostered a new type of cooperative relationship with Latin America featuring equality,mutual benefit,innovation,openness and tangible results for the *** circumstances demand that China and Latin American countries optimize and upgrade their cooperation in an innovative manner,with the joint building of the Belt and Road Initiative playing a pioneering role.

关键词： Latin mutual innovative

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山东省金融稳定报告(2008)摘要

金融发展研究 2009年第4期 7-11页

作者： <山东省金融稳定报告>分析小组中国人民银行济南分行山东济南250021

2008年,山东省区域经济呈前高后低走势,上半年经济高位运行,下半年在经济周期调整压力和国际金融危机冲击下,各项指标渐次回落。但总体看,由于国家宏观调控政策果断调整,有力发挥了反向调节效应,金融体系在支持经济发展、结构优化和增... 详细信息

2008年,山东省区域经济呈前高后低走势,上半年经济高位运行,下半年在经济周期调整压力和国际金融危机冲击下,各项指标渐次回落。但总体看,由于国家宏观调控政策果断调整,有力发挥了反向调节效应,金融体系在支持经济发展、结构优化和增长方式转变等方面发挥了积极作用。银行业体现出较强的抗风险能力,证券、保险业起伏明显,金融基础设施的支撑作用进一步突显。下一阶段区域金融稳定状况主要取决于各地贯彻落实宏观政策措施的及时性、有效性和长效性,尤其有赖于能否尽快扭转经济下行态势。在不确定性增多的环境下,金融管理部门和金融机构须倾力协作,坚持改革创新,努力捕捉"化危为机"的契机;积极健全风险防范化解机制,在逆境中谋求进取发展。

关键词：金融稳定金融风险金融市场金融基础设施评估报告

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中资企业对非技术转移的现状与前瞻

西亚非洲 2015年第1期 129-142页

作者：杨光李新烽陈沫仝菲刘冬樊少华中国社会科学院西亚非洲研究所

技术基础薄弱是制约非洲国家经济增长的重要瓶颈。为推动非洲技术进步,中国对非战略历来鼓励和支持中资企业对非技术转移,但值得注意的是,非洲学界和民间有关中资企业对非技术转移的批评之声却在不断蔓延。事实上,中资企业为实施"属地化... 详细信息

技术基础薄弱是制约非洲国家经济增长的重要瓶颈。为推动非洲技术进步,中国对非战略历来鼓励和支持中资企业对非技术转移,但值得注意的是,非洲学界和民间有关中资企业对非技术转移的批评之声却在不断蔓延。事实上,中资企业为实施"属地化"战略、开拓非洲市场或者履行附加技术转移条件的合作协议,一直坚持积极开展对非技术转移,并且已经在改善东道国技术环境、提高劳动力收入等方面取得了一定的成效。为了应对挑战、化解舆论危机,中国需秉承"授之以渔"的理念,多管齐下推进对非技术转移不断升级和优化。

关键词：中非关系在非中资企业技术转移 “授之以渔”

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基于IGBT的SUNIST欧姆场电源系统

核聚变与等离子体物理 2012年第2期32卷 165-170页

作者：杨桂香谭熠龚学余彭晓炜高喆 SUNIST组南华大学核科学技术学院湖南421001 清华大学工程物理系北京100084

为充分利用SUNIST球形托卡马克欧姆场的双向磁通,延长等离子体电流平顶时间,对欧姆场的电源系统进行了改造。提出了一种基于多个IGBT并联大电流低频开关的H桥双向放电电路,研发了该双向放电电路的核心元件——3kV/10kA级的IGBT并联大电... 详细信息

为充分利用SUNIST球形托卡马克欧姆场的双向磁通,延长等离子体电流平顶时间,对欧姆场的电源系统进行了改造。提出了一种基于多个IGBT并联大电流低频开关的H桥双向放电电路,研发了该双向放电电路的核心元件——3kV/10kA级的IGBT并联大电流开关。对单相电容准恒流充电电路与三相桥式电容换流充电回路进行了研究,合理地确定了双向放电主回路中两组储能电容器C1和C2的充电系统。经过安装、调试以及初步试验,在欧姆场线圈中得到了从正10kA到负6kA的双向放电电流,等离子体电流波形也有明显改善。

关键词：双向磁通 IGBT并联三相桥