J
J. W. Coenen
Researcher at Forschungszentrum Jülich
Publications - 173
Citations - 5719
J. W. Coenen is an academic researcher from Forschungszentrum Jülich. The author has contributed to research in topics: Tungsten & Divertor. The author has an hindex of 38, co-authored 165 publications receiving 4651 citations. Previous affiliations of J. W. Coenen include Culham Centre for Fusion Energy & Oak Ridge National Laboratory.
Papers
More filters
Journal ArticleDOI
Physics conclusions in support of ITER W divertor monoblock shaping
R.A. Pitts,S. Bardin,B. Bazylev,M.A. van den Berg,P. Bunting,S. Carpentier-Chouchana,J. W. Coenen,Yann Corre,R. Dejarnac,Frederic Escourbiac,Jonathan Gaspar,James Paul Gunn,T. Hirai,S-H. Hong,J. Horacek,D. Iglesias,Matthias Komm,K. Krieger,C.J. Lasnier,G. F. Matthews,Thomas Morgan,S. Panayotis,S. Pestchanyi,A. Podolnik,Richard E. Nygren,Dmitry Rudakov,G. De Temmerman,Petr Vondracek,J.G. Watkins +28 more
TL;DR: In this article, the effect of edge power loading on the shape of the ITER divertor was investigated, and it was concluded that the geometrical approximation for leading edge power load on radially misaligned poloidal leading edges is indeed valid.
Journal ArticleDOI
Impact of nitrogen seeding on confinement and power load control of a high-triangularity JET ELMy H-mode plasma with a metal wall
C. Giroud,G. P. Maddison,S. Jachmich,F.G. Rimini,M. N. A. Beurskens,I. Balboa,S. Brezinsek,R. Coelho,J. W. Coenen,Lorenzo Frassinetti,E. Joffrin,M. Oberkofler,Michael Lehnen,Y. Q. Liu,S. Marsen,K. McCormick,A. Meigs,R. Neu,B. Sieglin,G.J. van Rooij,G. Arnoux,P. Belo,M. Brix,M. Clever,I. H. Coffey,Stéphane Devaux,D. Douai,T. Eich,J. Flanagan,S. Grünhagen,A. Huber,M. Kempenaars,U. Kruezi,K. D. Lawson,P. J. Lomas,C.G. Lowry,I. Nunes,A. Sirinnelli,A. C. C. Sips,M.F. Stamp,S. Wiesen,Jet-Efda Contributors +41 more
TL;DR: In this article, the impact on confinement and power load of a high-shape 2.5-MA ELMy H-mode scenario at JET-C was investigated and an unexpected and significant change was reported on the decrease in pedestal confinement but is partially recovered with the injection of nitrogen.
Journal ArticleDOI
Tungsten divertor erosion in all metal devices: Lessons from the ITER like wall of JET
G.J. van Rooij,J. W. Coenen,L. Aho-Mantila,S. Brezinsek,M. Clever,R. Dux,M. Groth,K. Krieger,S. Marsen,G. F. Matthews,A. Meigs,R. Neu,S. Potzel,Th. Pütterich,Juergen Rapp,M.F. Stamp,Jet-Efda Contributors +16 more
TL;DR: Tungsten erosion in the outer divertor of the JET ITER like wall was quantified by spectroscopy as mentioned in this paper, and the signature of prompt redeposition was observed in the analysis of WI 400.
Journal ArticleDOI
Impact of nitrogen seeding on confinement and power load control of a high-triangularity JET ELMy H-mode plasma with a metal wall
C. Giroud,G. P. Maddison,S. Jachmich,F.G. Rimini,M. N. A. Beurskens,I. Balboa,S. Brezinsek,R. Coelho,J. W. Coenen,Lorenzo Frassinetti,E. Joffrin,M. Oberkofler,Michael Lehnen,Y. Q. Liu,S. Marsen,A. Meigs,R. Neu,B. Sieglin,G.J. van Rooij,G. Arnoux,P. Belo,M. Brix,M. Clever,I. H. Coffey,Stéphane Devaux,D. Douai,T. Eich,J. Flanagan,S. Grünhagen,A. Huber,M. Kempenaars,U. Kruezi,K. D. Lawson,P. J. Lomas,C.G. Lowry,Isabel L. Nunes,A. Sirinnelli,A. C. C. Sips,M.F. Stamp,S. Wiesen,Jet-Efda Contributors +40 more
TL;DR: In this paper, the impact on confinement and power load of a high-shape 2.5MA ELMy H-mode scenario at JET with a change from an all carbon plasma facing components to an all metal wall was investigated.
Journal ArticleDOI
Materials for DEMO and reactor applications—boundary conditions and new concepts
J. W. Coenen,Steffen Antusch,M. Aumann,Wolfgang Biel,Wolfgang Biel,J. Du,J. Engels,S. Heuer,A. Houben,T. Hoeschen,B. Jasper,Freimut Koch,Jochen Linke,Andrey Litnovsky,Yiran Mao,R. Neu,R. Neu,Gerald Pintsuk,Johann Riesch,Marcin Rasinski,J. Reiser,Michael Rieth,Alexis Terra,B. Unterberg,Th. Weber,T. Wegener,J.-H. You,Ch. Linsmeier +27 more
TL;DR: In this article, composites as well as strengthened CuCrZr components together with oxidation resilient tungsten alloys allow the step towards a fusion reactor to be taken. But the first stage prototype fusion reactor is considered to be the next step after ITER towards realizing fusion.