Zobrazeno 1 - 10
of 602
pro vyhledávání: '"D. Brida"'
Autor:
J.G.A. Scholte, M. Balden, D. Brida, J. Cecrdle, R. Dux, S. Elgeti, M. Faitsch, A. Herrmann, J. Horacek, K. Hunger, K. Krieger, A. Manhard, P. de Marné, V. Rohde, T.W. Morgan
Publikováno v:
Nuclear Materials and Energy, Vol 37, Iss , Pp 101522- (2023)
One of the ways to extend the lifetime of the divertor for DEMO could be to replace the solid tungsten plasma-facing components with liquid tin (Sn) confined in a tungsten capillary porous structure (CPS). Testing a CPS in a divertor plasma configura
Externí odkaz:
https://doaj.org/article/5bf6621dce7f45a1a5ab6c430122330c
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
Autor:
G. Grenfell, P. Manz, G.D. Conway, T. Eich, J. Adamek, D. Brida, M. Komm, T. Nishizawa, M. Griener, B. Tal, U. Stroth
Publikováno v:
Nuclear Materials and Energy, Vol 33, Iss , Pp 101277- (2022)
The L-mode density limit in ASDEX Upgrade is investigated with focus on the scrape-off layer. We observe a chain of events that involves the collapse of the E×B outer shear layer (just outside the separatrix), widening of the electron pressure fall-
Externí odkaz:
https://doaj.org/article/dbfe6e023910460f9246010730428c65
Autor:
D. Brida, G.D. Conway, J. Adamek, D. Silvagni, P. David, T. Eich, G. Grenfell, M. Komm, U. Plank
Publikováno v:
Nuclear Materials and Energy, Vol 33, Iss , Pp 101262- (2022)
The electric field in the Scrape-Off Layer (SOL) of fusion plasmas is a key quantity affecting the local plasma transport and possibly also the overall plasma confinement. However, the physics determining the SOL electric field is experimentally not
Externí odkaz:
https://doaj.org/article/ab742a94e18649df9be306113e482b34
Autor:
T. Ravensbergen, M. van Berkel, A. Perek, C. Galperti, B. P. Duval, O. Février, R. J. R. van Kampen, F. Felici, J. T. Lammers, C. Theiler, J. Schoukens, B. Linehan, M. Komm, S. Henderson, D. Brida, M. R. de Baar
Publikováno v:
Nature Communications, Vol 12, Iss 1, Pp 1-9 (2021)
The exhaust of heat and particles is an important challenge in future nuclear fusion devices. Here the authors report the use of carbon emission as indicator for plasma detachment in a tokamak and its real-time feedback control.
Externí odkaz:
https://doaj.org/article/33678bf670ce4fcd8673783d3809dd30
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
Autor:
O. Février, H. Reimerdes, C. Theiler, D. Brida, C. Colandrea, H. De Oliveira, B.P. Duval, D. Galassi, S. Gorno, S. Henderson, M. Komm, B. Labit, B. Linehan, L. Martinelli, A. Perek, H. Raj, U. Sheikh, C.K. Tsui, M. Wensing
Publikováno v:
Nuclear Materials and Energy, Vol 27, Iss , Pp 100977- (2021)
The Tokamak à Configuration Variable (TCV) has recently been equipped with gas baffles to increase its divertor closure for a broad range of divertor magnetic geometries. First experimental results reported in Reimerdes et al. (2021) demonstrated co
Externí odkaz:
https://doaj.org/article/8c4d9f456c184300890ce590627c32a9
Publikováno v:
Nuclear Materials and Energy, Vol 19, Iss , Pp 205-210 (2019)
Previous simulation results for the tokamak ASDEX Upgrade have shown that Magnetic Perturbation (MP) fields could lead to a decrease of the peak heat flux onto the divertor targets. However, experimentally, such a decrease has not been observed. To u
Externí odkaz:
https://doaj.org/article/1564fb1d33a44b80a49528b7ae670478
Autor:
I. Paradela Pérez, M. Groth, M. Wischmeier, A. Scarabosio, D. Brida, P. David, D. Silvagni, D. Coster, T. Lunt, M. Faitsch
Publikováno v:
Nuclear Materials and Energy, Vol 19, Iss , Pp 531-536 (2019)
Pairs of ASDEX Upgrade L-mode discharges with the toroidal magnetic field, BT, in the forward and reverse directions have been used to study the impact of neoclassical drifts on the divertor plasma conditions and detachment. The evolution of the peak
Externí odkaz:
https://doaj.org/article/af8e75be4ec841c98f2ff5acb048f3ad
Autor:
T. Happel, M. Griener, D. Silvagni, S.J. Freethy, P. Hennequin, F. Janky, P. Manz, D. Prisiazhniuk, F. Ryter, M. Bernert, D. Brida, T. Eich, M. Faitsch, L. Gil, L. Guimarais, A. Merle, D. Nille, J. Pinzón, B. Sieglin, U. Stroth, E. Viezzer
Publikováno v:
Nuclear Materials and Energy, Vol 18, Iss , Pp 159-165 (2019)
Recent I-mode investigations from the ASDEX Upgrade tokamak are reported. It is shown that neutral-beam-injection heated I-modes can be stationary, which is important in terms of extrapolability towards future fusion devices. Furthermore, detailed st
Externí odkaz:
https://doaj.org/article/a0e7eac20c2c47b8bf0d2bff453ee6fb