Zobrazeno 1 - 10
of 388
pro vyhledávání: '"S. Wiesen"'
Autor:
N. Asakura, K. Hoshino, S. Kakudate, F. Subba, J.-H. You, S. Wiesen, T.D. Rognlien, R. Ding, S. Kwon
Publikováno v:
Nuclear Materials and Energy, Vol 35, Iss , Pp 101446- (2023)
The power exhaust concept and an appropriate divertor design are common critical issues for tokamak DEMO design activities which have been carried out in Europe, Japan, China, Korea and the USA. Conventional divertor concepts and power exhaust studie
Externí odkaz:
https://doaj.org/article/0d11f9b090fb4ccb9eb4f56d12a6444c
Autor:
M. Bernert, S. Wiesen, O. Février, A. Kallenbach, J.T.W. Koenders, B. Sieglin, U. Stroth, T.O.S.J. Bosman, D. Brida, M. Cavedon, P. David, M.G. Dunne, S. Henderson, B. Kool, T. Lunt, R.M. McDermott, O. Pan, A. Perek, H. Reimerdes, U. Sheikh, C. Theiler, M. van Berkel, T. Wijkamp, M. Wischmeier
Publikováno v:
Nuclear Materials and Energy, Vol 34, Iss , Pp 101376- (2023)
Future fusion reactors require a safe, steady-state divertor operation. With deep divertor detachment, which is typically induced by impurity seeding, the radiation concentrates in a small region at the X-point or on closed flux surfaces above the X-
Externí odkaz:
https://doaj.org/article/a19cf8e87ba64819b1c5210e6d695632
Publikováno v:
Nuclear Materials and Energy, Vol 34, Iss , Pp 101347- (2023)
Predictive and real-time inference capability for the upstream separatrix electron density, ne, sep, is essential for design and control of core-edge integrated plasma scenarios. In this study, both supervised and semi-supervised machine learning alg
Externí odkaz:
https://doaj.org/article/8f8f6206949a434ba744faaf3853085a
Autor:
M. Groth, V. Solokha, S. Aleiferis, S. Brezinsek, M. Brix, I.S. Carvalho, P. Carvalho, G. Corrigan, D. Harting, N. Horsten, I. Jepu, J. Karhunen, K. Kirov, B. Lomanowski, K.D. Lawson, C. Lowry, A.G. Meigs, S. Menmuir, E. Pawelec, T. Pereira, A. Shaw, S. Silburn, B. Thomas, S. Wiesen, P. Börner, D. Borodin, S. Jachmich, D. Reiter, G. Sergienko, Z. Stancar, B. Viola, P. Beaumont, J. Bernardo, I. Coffey, N.J. Conway, E. de la Luna, D. Douai, C. Giroud, J. Hillesheim, L. Horvath, A. Huber, P. Lomas, C.F. Maggi, M. Maslov, C. Perez von Thun, S. Scully, N. Vianello, M. Wischmeier
Publikováno v:
Nuclear Materials and Energy, Vol 34, Iss , Pp 101345- (2023)
Measurements of the ion currents to and plasma conditions at the low-field side (LFS) divertor target plate in low-confinement mode plasmas in the JET ITER-like wall materials configuration show that the core plasma density required to detach the LFS
Externí odkaz:
https://doaj.org/article/d1179c4ca32148b682ae22995ec47e03
Autor:
A. Huber, M. Wischmeier, S. Wiesen, M. Bernert, A.V. Chankin, S. Aleiferis, S. Brezinsek, V. Huber, G. Sergienko, C. Giroud, M. Groth, S. Jachmich, Ch. Linsmeier, B. Lomanowski, C. Lowry, G.F. Matthews, A.G. Meigs, Ph. Mertens, S. Silburn, G. Telesca
Publikováno v:
Nuclear Materials and Energy, Vol 33, Iss , Pp 101299- (2022)
The total radiated fraction is examined in high density H-mode plasmas (Greenwald fraction of about 85 %) in JET by the variation of the auxiliary heating power of Pheat = 14 MW-29 MW. An achieved radiation fraction of about 75 % at most has been obs
Externí odkaz:
https://doaj.org/article/213f3a80a2d5494a9f3006f149cf305a
Autor:
S.S. Henderson, M. Bernert, C. Giroud, D. Brida, M. Cavedon, P. David, R. Dux, J.R. Harrison, A. Huber, A. Kallenbach, J. Karhunen, B. Lomanowski, G. Matthews, A. Meigs, R.A. Pitts, F. Reimold, M.L. Reinke, S. Silburn, N. Vianello, S. Wiesen, M. Wischmeier
Publikováno v:
Nuclear Materials and Energy, Vol 28, Iss , Pp 101000- (2021)
While current tokamak experiments are beginning to use real-time feedback control systems to manage the plasma exhaust, future tokamaks still require validation of theoretical models used to predict the threshold impurity concentration required to su
Externí odkaz:
https://doaj.org/article/16a3d286973141d28c8b2096805ee2b3
Publikováno v:
Nuclear Materials and Energy, Vol 27, Iss , Pp 100969- (2021)
We present a spatially hybrid fluid–kinetic neutral model that consists of a fluid model for the hydrogen atoms in the plasma grid region coupled to a kinetic model for atoms sampled at the plasma–void interfaces and a fully kinetic model for the
Externí odkaz:
https://doaj.org/article/461bbcc3fd3e4533af87a2aee69c0e89
Autor:
K.D. Lawson, M. Groth, D. Harting, S. Menmuir, D. Reiter, K.M. Aggarwal, S. Brezinsek, I.H. Coffey, G. Corrigan, F.P. Keenan, C.F. Maggi, A.G. Meigs, M.G. O'Mullane, J. Simpson, S. Wiesen
Publikováno v:
Nuclear Materials and Energy, Vol 27, Iss , Pp 101010- (2021)
Externí odkaz:
https://doaj.org/article/622dff803d344302b056d7a40518f38f
Autor:
M. Groth, E.M. Hollmann, A.E. Jaervinen, A.W. Leonard, A.G. McLean, C.M. Samuell, D. Reiter, S.L. Allen, P. Boerner, S. Brezinsek, I. Bykov, G. Corrigan, M.E. Fenstermacher, D. Harting, C.J. Lasnier, B. Lomanowski, M.A. Makowski, M.W. Shafer, H.Q. Wang, J.G. Watkins, S. Wiesen, R.S. Wilcox
Publikováno v:
Nuclear Materials and Energy, Vol 19, Iss , Pp 211-217 (2019)
The contributions of deuterium molecular emission to the total deuterium radiation was assessed in DIII-D ohmically-confined plasmas in high-recycling divertor conditions. Radial profiles of the deuterium Ly-α line intensity across the low-field sid
Externí odkaz:
https://doaj.org/article/958cc39e336e4eab94dab2b0b89e9522
Publikováno v:
Nuclear Materials and Energy, Vol 19, Iss , Pp 397-402 (2019)
Effect of ELMs on fuel retention at the bulk W target of JET ITER-Like Wall was studied with multi-scale calculations. Plasma input parameters were taken from ELMy H-mode plasma experiment. The energetic intra-ELM fuel particles get implanted and cre
Externí odkaz:
https://doaj.org/article/ff6d049b75c944be8ffec33184a2a794