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Towards understandi...
Towards understanding reactor relevant tokamak pedestals
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- Ham, C. J. (författare)
- Culham Science Centre,UKAEA CCFE, Culham Sci Ctr, Abingdon OX14 3DB, Oxon, England.
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- Bokshi, A. (författare)
- Institute for Plasma Research India,Inst Plasma Res, Gandhinagar, India.
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- Brunetti, D. (författare)
- Culham Science Centre,UKAEA CCFE, Culham Sci Ctr, Abingdon OX14 3DB, Oxon, England.
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- Ramirez, G. Bustos (författare)
- Ecole Polytechnique Federale de Lausanne (EPFL),Swiss Federal Institute of Technology in Lausanne (EPFL),Ecole Polytech Fed Lausanne EPFL, Swiss Plasma Ctr SPC, CH-1015 Lausanne, Switzerland.
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- Chapman, B. (författare)
- Culham Science Centre,UKAEA CCFE, Culham Sci Ctr, Abingdon OX14 3DB, Oxon, England.
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- Connor, J. W. (författare)
- Culham Science Centre,UKAEA CCFE, Culham Sci Ctr, Abingdon OX14 3DB, Oxon, England.
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- Dickinson, D. (författare)
- University of York,Univ York, York Plasma Inst, York YO10 5DD, N Yorkshire, England.
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- Field, A. R. (författare)
- Culham Science Centre,UKAEA CCFE, Culham Sci Ctr, Abingdon OX14 3DB, Oxon, England.
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- Frassinetti, Lorenzo (författare)
- KTH,Fusionsplasmafysik,Kungliga Tekniska Högskolan (KTH),Royal Institute of Technology (KTH)
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- Gillgren, Andreas, 1995 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology,Chalmers Univ Technol, SE-41296 Gothenburg, Sweden.
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- Graves, J. P. (författare)
- Ecole Polytechnique Federale de Lausanne (EPFL),Swiss Federal Institute of Technology in Lausanne (EPFL),Ecole Polytech Fed Lausanne EPFL, Swiss Plasma Ctr SPC, CH-1015 Lausanne, Switzerland.
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- Kiviniemi, T. P. (författare)
- Aalto-Yliopisto,Aalto University,Aalto Univ, FI-00076 Aalto, Finland.
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- Leerink, S. (författare)
- Aalto-Yliopisto,Aalto University,Aalto Univ, FI-00076 Aalto, Finland.
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- McMillan, B. (författare)
- The University of Warwick,Univ Warwick, Coventry CV4 7AL, W Midlands, England.
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- Newton, S. (författare)
- Culham Science Centre,UKAEA CCFE, Culham Sci Ctr, Abingdon OX14 3DB, Oxon, England.
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- Pamela, S. (författare)
- Culham Science Centre,UKAEA CCFE, Culham Sci Ctr, Abingdon OX14 3DB, Oxon, England.,Chalmers Univ Technol, SE-41296 Gothenburg, Sweden.
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- Roach, C. M. (författare)
- Culham Science Centre,UKAEA CCFE, Culham Sci Ctr, Abingdon OX14 3DB, Oxon, England.
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- Saarelma, S. (författare)
- Culham Science Centre,UKAEA CCFE, Culham Sci Ctr, Abingdon OX14 3DB, Oxon, England.
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- Simpson, J. (författare)
- Culham Science Centre,UKAEA CCFE, Culham Sci Ctr, Abingdon OX14 3DB, Oxon, England.
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- Smith, S. F. (författare)
- Culham Science Centre
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- Solano, E. R. (författare)
- Centro de Investigaciones Energeticas, Medioambientales y Tecnologicas (Ciemat),CIEMAT, Lab Nacl Fus, Madrid, Spain.
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- Strand, Pär, 1968 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Virtanen, A. J. (författare)
- Aalto-Yliopisto,Aalto University,Aalto Univ, FI-00076 Aalto, Finland.
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Culham Science Centre UKAEA CCFE, Culham Sci Ctr, Abingdon OX14 3DB, Oxon, England (creator_code:org_t)
- 2021-08-02
- 2021
- Engelska.
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Ingår i: Nuclear Fusion. - : IOP Publishing. - 1741-4326 .- 0029-5515. ; 61:9
- Relaterad länk:
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https://doi.org/10.1...
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https://research.cha...
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- The physics of the tokamak pedestal is still not fully understood, for example there is no fully predictive model for the pedestal height and width. However, the pedestal is key in determining the fusion power for a given scenario. If we can improve our understanding of reactor relevant pedestals we will improve our confidence in designing potential fusion power plants. Work has been carried out as part of a collaboration on reactor relevant pedestal physics. We report some of the results in detail here and review some of the wider work which will be reported in full elsewhere. First, we attempt to use a gyrokinetic-based calculation to eliminate the pedestal top density as a model input for Europed/EPED pedestal predictions. We assume power balance at the top of the pedestal, that is, the heat flux crossing the separatrix must be equal to the heat source at the top of the pedestal and investigate the consequences of this assumption. Unfortunately, the transport assumptions of the EPED model mean that this method does not discriminate between different pairs of density and temperature profiles for a given pressure profile. Second, we investigate the effects of non flux surface density on the bootstrap current. Third, type I ELMs will not be tolerable for a reactor relevant regime due to the damage that they are expected to cause to plasma facing components. In recent years various methods of running tokamak plasmas without large ELMs have been developed. These include small and no ELM regimes, the use of resonant magnetic perturbations and the use of vertical kicks. We discuss the quiescent H-mode here. Finally we give a summary and directions for future work.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik -- Energiteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering -- Energy Engineering (hsv//eng)
- NATURVETENSKAP -- Fysik -- Annan fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Other Physics Topics (hsv//eng)
- NATURVETENSKAP -- Fysik -- Fusion, plasma och rymdfysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Fusion, Plasma and Space Physics (hsv//eng)
Nyckelord
- tokamak
- MHD
- pedestal
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
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Till lärosätets databas
- Av författaren/redakt...
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Ham, C. J.
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Bokshi, A.
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Brunetti, D.
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Ramirez, G. Bust ...
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Chapman, B.
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Connor, J. W.
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visa fler...
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Dickinson, D.
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Field, A. R.
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Frassinetti, Lor ...
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Gillgren, Andrea ...
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Graves, J. P.
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Kiviniemi, T. P.
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Leerink, S.
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McMillan, B.
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Newton, S.
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Pamela, S.
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Roach, C. M.
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Saarelma, S.
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Simpson, J.
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Smith, S. F.
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Solano, E. R.
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Strand, Pär, 196 ...
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Virtanen, A. J.
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visa färre...
- Om ämnet
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- TEKNIK OCH TEKNOLOGIER
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TEKNIK OCH TEKNO ...
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och Maskinteknik
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och Energiteknik
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- NATURVETENSKAP
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NATURVETENSKAP
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och Fysik
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och Annan fysik
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- NATURVETENSKAP
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NATURVETENSKAP
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och Fysik
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och Fusion plasma oc ...
- Artiklar i publikationen
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Nuclear Fusion
- Av lärosätet
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Chalmers tekniska högskola
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Kungliga Tekniska Högskolan