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15th IEEE/NPSS Symposium on Fusion Engineering - Supplement,最新文献

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The new control scheme for the JET plasma position and current control system 射流等离子体位置和电流控制系统的新控制方案
15th IEEE/NPSS Symposium on Fusion Engineering - Supplement, Pub Date : 1993-10-11 DOI: 10.1109/SFE.1993.472790
M. Garribba, R. Litunovsky, P. Noll, S. Puppin
{"title":"The new control scheme for the JET plasma position and current control system","authors":"M. Garribba, R. Litunovsky, P. Noll, S. Puppin","doi":"10.1109/SFE.1993.472790","DOIUrl":"https://doi.org/10.1109/SFE.1993.472790","url":null,"abstract":"The new setup for the Plasma Position and Current Control (PPCC) to be implemented in the next JET operational campaign is described. A decoupling control scheme is used because of the strong coupling between the coils introduced by the new divertor coils and magnetic configuration. A general discussion of the method applied with results of simulations is presented. Effects of modelling errors and operational limits are discussed.","PeriodicalId":387034,"journal":{"name":"15th IEEE/NPSS Symposium on Fusion Engineering - Supplement,","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121495349","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: 20
A new coil protection system for the divertor configuration at JET JET转向器配置的新型线圈保护系统
15th IEEE/NPSS Symposium on Fusion Engineering - Supplement, Pub Date : 1993-10-11 DOI: 10.1109/SFE.1993.472787
V. Marchese, J. Last, G. Sannazzaro, L. Scibile, J. Van Veen
{"title":"A new coil protection system for the divertor configuration at JET","authors":"V. Marchese, J. Last, G. Sannazzaro, L. Scibile, J. Van Veen","doi":"10.1109/SFE.1993.472787","DOIUrl":"https://doi.org/10.1109/SFE.1993.472787","url":null,"abstract":"The paper describes a new Coil Protection System (CPS) which is planned to be installed at JET before the next experimental campaign with a pumped divertor. The protection system will make circuit equation integration, computations of forces on and stress in the coils and check current and voltage levels and coil heating effects in real time. If acceptable values for any of these parameters are exceeded, the pulse will be terminated. A fully digital implementation of the algorithms is being designed using a high performance Digital Signal Processor (DSP). A programme has been written for convenient off-line calculation and checks of model parameters with JET data.","PeriodicalId":387034,"journal":{"name":"15th IEEE/NPSS Symposium on Fusion Engineering - Supplement,","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130755942","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
Construction and testing of the JET divertor coils inside the vacuum vessel 真空容器内JET分流器线圈的建造和测试
15th IEEE/NPSS Symposium on Fusion Engineering - Supplement, Pub Date : 1993-10-11 DOI: 10.1109/SFE.1993.472782
A. Tesini, E. Bertolini, N. Dolgetta, J. Last, P. Presle, G. Sannazzaro, J. Tait, G. Dal Mut, C. D'Urzo, A. Laurenti, A. Maragliano
{"title":"Construction and testing of the JET divertor coils inside the vacuum vessel","authors":"A. Tesini, E. Bertolini, N. Dolgetta, J. Last, P. Presle, G. Sannazzaro, J. Tait, G. Dal Mut, C. D'Urzo, A. Laurenti, A. Maragliano","doi":"10.1109/SFE.1993.472782","DOIUrl":"https://doi.org/10.1109/SFE.1993.472782","url":null,"abstract":"The JET tokamak magnetic system has been enhanced by adding four resistive magnets inside the vacuum vessel to produce divertor plasmas. In factory the coil parts were manufactured and process techniques qualified. Assembly took place at JET, inside the vacuum vessel, including welding into Inconel casings and impregnation with epoxy resin.","PeriodicalId":387034,"journal":{"name":"15th IEEE/NPSS Symposium on Fusion Engineering - Supplement,","volume":"30 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114040814","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
Development of beryllium-carbide fibre reinforced beryllium for fusion applications 碳化铍纤维增强铍熔合材料的研制
15th IEEE/NPSS Symposium on Fusion Engineering - Supplement, Pub Date : 1993-10-11 DOI: 10.1109/SFE.1993.472786
A. Peacock, W.J. Haws, M. Pick
{"title":"Development of beryllium-carbide fibre reinforced beryllium for fusion applications","authors":"A. Peacock, W.J. Haws, M. Pick","doi":"10.1109/SFE.1993.472786","DOIUrl":"https://doi.org/10.1109/SFE.1993.472786","url":null,"abstract":"Be-Be/sub 2/C composite materials have been produced via two routes. The first produces a two dimensional composite with woven carbon cloth converted to the Be/sub 2/C fibres and infiltrated with molten Be with the assistance of a wetting agent. A number of wetting agents with low atomic number were tried, the best being silicon, either in metallic form or as polydimethylsiloxane. The second composite has a three dimensional structure, again with Be as the matrix but with random Be/sub 2/C fibres, produced by hot pressing a mixture of Be powder with 0.25 inch Be/sub 2/C fibres; no wetting agent was used. Some fibre agglomeration was observed with resulting porosity and the component had a density of 93% of theoretical. The room temperature thermal conductivity of the second composite was 84W/mk, slightly less than would be expected by a rule of mixtures, possibly due to the porosity.","PeriodicalId":387034,"journal":{"name":"15th IEEE/NPSS Symposium on Fusion Engineering - Supplement,","volume":"187 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133827929","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
Experience at JET relating to the first production of tritium neutral beams for D-T tokamak experiments 在JET有关首次生产用于D-T托卡马克实验的氚中性束的经验
15th IEEE/NPSS Symposium on Fusion Engineering - Supplement, Pub Date : 1993-10-11 DOI: 10.1109/SFE.1993.472781
E. Thompson
{"title":"Experience at JET relating to the first production of tritium neutral beams for D-T tokamak experiments","authors":"E. Thompson","doi":"10.1109/SFE.1993.472781","DOIUrl":"https://doi.org/10.1109/SFE.1993.472781","url":null,"abstract":"The highest fusion yield plasmas in JET are obtained using neutral beam injection to inject energetic beams of deuterium into low density target plasmas which are generated in single or double-null X-point magnetic configurations. Extrapolation of the measured performance of these hot-ion H-mode plasmas in deuterium to that to be expected using a D-T fuel mixture showed that significant power (/spl sim/MW) would be released from controlled thermo-nuclear fusion reactions even if the tritium concentration was less than the optimum value of 50%. We describe the major technological developments which were carried out to enable the first multi-ampere beams of tritium, essential for the successful outcome of the First Tritium Experiment, to be produced and injected into the JET tokamak.","PeriodicalId":387034,"journal":{"name":"15th IEEE/NPSS Symposium on Fusion Engineering - Supplement,","volume":"30 20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134512015","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
Power optimisation in the RF systems at JET and future devices JET和未来设备射频系统的功率优化
15th IEEE/NPSS Symposium on Fusion Engineering - Supplement, Pub Date : 1993-10-11 DOI: 10.1109/SFE.1993.472783
A. Sibley, V. Bhatnagar, G. Bosia, M. Bureš, J.A. Dobbing, C. Gormezano, J. How, M. Schmid, D. Start, T. Wade
{"title":"Power optimisation in the RF systems at JET and future devices","authors":"A. Sibley, V. Bhatnagar, G. Bosia, M. Bureš, J.A. Dobbing, C. Gormezano, J. How, M. Schmid, D. Start, T. Wade","doi":"10.1109/SFE.1993.472783","DOIUrl":"https://doi.org/10.1109/SFE.1993.472783","url":null,"abstract":"For the JET divertor phase starting in 1994, powerful ion cyclotron resonant heating (up to 24 MW) and lower hybrid current drive (up to 10 MW) systems will be available. To in the large variety of plasma configurations which are planned at JET, it is essential that enhanced automatic control systems are installed to obtain the maximum power for both systems.","PeriodicalId":387034,"journal":{"name":"15th IEEE/NPSS Symposium on Fusion Engineering - Supplement,","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114778512","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: 0
Organic cooling fluids for the JET toroidal and divertor field coils 用于JET环形和导流器场线圈的有机冷却液
15th IEEE/NPSS Symposium on Fusion Engineering - Supplement, Pub Date : 1993-10-11 DOI: 10.1109/SFE.1993.472791
M. Cooke, P. Butcher, M. Huguet, J. Last, C. Sborchia
{"title":"Organic cooling fluids for the JET toroidal and divertor field coils","authors":"M. Cooke, P. Butcher, M. Huguet, J. Last, C. Sborchia","doi":"10.1109/SFE.1993.472791","DOIUrl":"https://doi.org/10.1109/SFE.1993.472791","url":null,"abstract":"When the inter-turn electrical fault was found on the JET toroidal field coil 3.1 a series of studies were carried out to find an alternative cooling fluid to demineralised water with a high intrinsic electrical resistivity. The initial selection examined the physical characteristics of the fluids and ruled out all but three organic compounds. This paper describes the further tests and studies which were carried out to assess the performance and suitability of these organic cooling fluids. The plant implications including storage vessels, vent pipework, pump mechanical seals vapour detection scheme and leak detection are examined together with the waste management and the environmental aspects of using organic cooling fluids.","PeriodicalId":387034,"journal":{"name":"15th IEEE/NPSS Symposium on Fusion Engineering - Supplement,","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125498442","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
Fromm, Norman In memoriam 纪念诺曼·弗洛姆
15th IEEE/NPSS Symposium on Fusion Engineering - Supplement, Pub Date : 1900-01-01 DOI: 10.1109/SFE.1993.472799
{"title":"Fromm, Norman In memoriam","authors":"","doi":"10.1109/SFE.1993.472799","DOIUrl":"https://doi.org/10.1109/SFE.1993.472799","url":null,"abstract":"","PeriodicalId":387034,"journal":{"name":"15th IEEE/NPSS Symposium on Fusion Engineering - Supplement,","volume":"480 3","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134063618","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: 0
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