2009 23rd IEEE/NPSS Symposium on Fusion Engineering最新文献_第9页

Performance study of non-contact surface measurement technology for use in an experimental fusion device 实验核聚变装置非接触面测量技术的性能研究

2009 23rd IEEE/NPSS Symposium on Fusion Engineering Pub Date : 2009-06-01 DOI: 10.1117/12.825267

A. Brownhill, S. Robson, R. Brade

引用次数: 8

ITER ICRF system: R&D progress and technical choices ITER ICRF系统:研发进展与技术选择

2009 23rd IEEE/NPSS Symposium on Fusion Engineering Pub Date : 2009-06-01 DOI: 10.1109/FUSION.2009.5226425

B. Beaumont, T. Gassmann, F. Kazarian, P. Lamalle, A. Mukherjee, U. Baruah, D. Rasmussen, R. Sartori

引用次数: 5

Mechanical design of the NSTX Liquid Lithium Divertor NSTX液体锂分流器的机械设计

2009 23rd IEEE/NPSS Symposium on Fusion Engineering Pub Date : 2009-06-01 DOI: 10.1109/FUSION.2009.5226433

R. Ellis, R. Kaita, H. Kugel, G. Paluzzi, M. Viola, R. Nygren

引用次数: 3

Advancements in electrical insulations for fusion devices 核聚变装置电绝缘的进展

2009 23rd IEEE/NPSS Symposium on Fusion Engineering Pub Date : 2009-06-01 DOI: 10.1109/FUSION.2009.5226460

M. Madhukar, B. Morgan, J. Walsh, M. Hooker

引用次数: 1

Compensation of beamlet deflection by mechanical offset of the grids apertures in the SPIDER ion source 蜘蛛离子源中网格孔径的机械偏移补偿激光束偏转

2009 23rd IEEE/NPSS Symposium on Fusion Engineering Pub Date : 2009-06-01 DOI: 10.1109/FUSION.2009.5226537

P. Agostinetti, V. Antoni, N. Pilan, G. Serianni

{"title":"Compensation of beamlet deflection by mechanical offset of the grids apertures in the SPIDER ion source","authors":"P. Agostinetti, V. Antoni, N. Pilan, G. Serianni","doi":"10.1109/FUSION.2009.5226537","DOIUrl":"https://doi.org/10.1109/FUSION.2009.5226537","url":null,"abstract":"The SPIDER experiment has the main goal to test the extraction of negative ions from an ITER size ion source. It is designed to extract 1280 negative ion beamlets and accelerate them up to a 100 kV potential. The negative ion beam at exit and the operating parameters will be carefully measured and optimized in order to match the ITER requirements for the NBI (Neutral Beam Injector) ion sources. Inside a negative ion accelerator, there are generally two main factors that can cause deflection of the ion beamlets: the repulsion among beamlets and the electron suppression magnetic field. These two effects are both to be considered highly detrimental for the ITER NBI, as they are expected to cause higher heat loads on the ITER NBI neutralizer and decrease the overall beam quality (in terms of aiming and divergence). Hence they should be considered and minimized also for the SPIDER device, where it will be possible to precisely investigate the beamlet footprint using an instrumented calorimeter relatively close to the accelerator exit. This paper presents a design optimization process aiming at compensating the two described effects. To make this, a mechanical offset of the grounded grid apertures is considered. The OPERA-3d code (Vector Fields Co. Ltd.) is used as the main tool for this optimization process, as it can take into account the beamlet repulsion and the interaction between beamlets and grids. This is made by solving the electrostatic Poisson's equation with a finite element approach, to calculate the particle trajectories of the negative ions under the influence of electrostatic fields, magnetic fields and space charge.","PeriodicalId":236460,"journal":{"name":"2009 23rd IEEE/NPSS Symposium on Fusion Engineering","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123309914","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Target steering and electrostatic acceleration for IFE IFE的目标转向和静电加速

2009 23rd IEEE/NPSS Symposium on Fusion Engineering Pub Date : 2009-06-01 DOI: 10.1109/FUSION.2009.5226377

R. Petzoldt, D. Goodin, E. Valmianski, L. Carlson, J. Stromsoe, J. Hares

{"title":"Target steering and electrostatic acceleration for IFE","authors":"R. Petzoldt, D. Goodin, E. Valmianski, L. Carlson, J. Stromsoe, J. Hares","doi":"10.1109/FUSION.2009.5226377","DOIUrl":"https://doi.org/10.1109/FUSION.2009.5226377","url":null,"abstract":"We have demonstrated that in-flight electrostatic steering can substantially improve target placement accuracy. We optically track the motion of a charged target and feed back appropriate steering voltage to four steering electrodes. Target placement accuracy of falling ∼1.8 mg shells with 0.5 m stand off from steering electrodes is improved from ∼ 500 to 10 µm standard deviation in each transverse direction. It might be possible to replace current-day positioning systems for target shots with a system such as this, resulting in substantial debris reduction. We also completed fabrication and started testing an electrostatic accelerator that advances the electric field each time the charged target passes one of the 96 accelerating electrodes. Many of the accelerating electrodes are segmented to allow transverse position correction based on transverse position measurements during the acceleration process. The accelerator operation has now transitioned to vacuum acceleration of 1.8 mg hollow shells. Calculations indicate that this “first step” accelerator could achieve 10–15 m/s target velocity in 0.9 m with −0.5 nC target charge and ±4 kV accelerating voltage. Demonstrating this capability is still underway. Additional experimental work and updated acceleration results will be presented.","PeriodicalId":236460,"journal":{"name":"2009 23rd IEEE/NPSS Symposium on Fusion Engineering","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128658075","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Thermo-mechanical analysis of a prototypical SiC foam-based flow channel insert 碳化硅泡沫基流道嵌件原型的热力学分析

2009 23rd IEEE/NPSS Symposium on Fusion Engineering Pub Date : 2009-06-01 DOI: 10.1109/FUSION.2009.5226527

S. Sharafat, A. Aoyama, N. Morley, N. Ghoniem, B. Williams, Y. Katoh

引用次数: 3

Conceptual design of optical path related elements in the port plug of ITER core lidar diagnostic ITER核心激光雷达诊断端口插头中光程相关元件的概念设计

2009 23rd IEEE/NPSS Symposium on Fusion Engineering Pub Date : 2009-06-01 DOI: 10.1109/FUSION.2009.5226478

B. Mészáros, G. Porempovics, M. Walsh

引用次数: 0

Plasma facing conponents of EAST EAST的等离子体面成分

2009 23rd IEEE/NPSS Symposium on Fusion Engineering Pub Date : 2009-06-01 DOI: 10.1109/FUSION.2009.5226435

Y. Song, H. Xie, X. Liu, L. Bao, Z. Zhou, L. Cao, T. Xu, X. Peng, Y. Peng, N. Zhu, P. Zhang, J. Wu, S. Wang, X. Wang, J. Hu, J. Chen, G. Luo, D. Yao, D. Gao, P. Fu, J. Li

{"title":"Plasma facing conponents of EAST","authors":"Y. Song, H. Xie, X. Liu, L. Bao, Z. Zhou, L. Cao, T. Xu, X. Peng, Y. Peng, N. Zhu, P. Zhang, J. Wu, S. Wang, X. Wang, J. Hu, J. Chen, G. Luo, D. Yao, D. Gao, P. Fu, J. Li","doi":"10.1109/FUSION.2009.5226435","DOIUrl":"https://doi.org/10.1109/FUSION.2009.5226435","url":null,"abstract":"EAST plasma facing components (PFCs) have the function of protecting the vacuum vessel, heating systems and diagnostic components from the plasma particles and heat loads, and also additional to this particles and heat loads handling. They are installed in the vacuum vessel together with in-vessel coils, cryopump and diagnostic components. The design, fabrication and assembly have been finished. The PFCs are designed up-down symmetry to accommodate with both double null and single null plasma configuration. All PFCs use graphite tile for plasma facing surfaces affixed to copper alloy heat sink. A special deep hole drilling technology was developed to drill cooling channels directly on heat sink for high efficient heat removal. All Heat sink are installed onto the base alignment rails through stainless steel supports. As the benchmark of assembly for PFCs, the base rails are installed and measured precise based on a new alignment method integrating the optical instruments and a mechanical template. And so is a mechanical check template for checking the surface of first wall. As indicated, all the first wall components were fabricated and assembled successfully and meet the design requirement for the plasma operation.","PeriodicalId":236460,"journal":{"name":"2009 23rd IEEE/NPSS Symposium on Fusion Engineering","volume":"144 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124627663","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Copper alloys used for support units of ITER blanket modules: Compression and tension properties ITER包层模块支撑单元用铜合金:压缩和拉伸性能

2009 23rd IEEE/NPSS Symposium on Fusion Engineering Pub Date : 2009-06-01 DOI: 10.1109/FUSION.2009.5226503

G. Kalinin, Y. Strebkov, N. S. Krestnikov, E. V. Parshutin

引用次数: 1