Zobrazeno 1 - 10
of 107
pro vyhledávání: '"F.M. Laggner"'
Autor:
S. Mordijck, R.A. Chaban, R. Reksoatmodjo, J.J. Balbin-Arias, Y. Chuang, J. Loughran, J.W. Hughes, A.M. Rosenthal, M.A. Miller, T. Wilks, F.M. Laggner, T. Osborne
Publikováno v:
Nuclear Fusion, Vol 64, Iss 12, p 126034 (2024)
This paper investigates the role of ionization on the pedestal structure using both measurements and modeling for H-mode plasmas on DIII-D and Alcator C-Mod to enhance our ability to predict pedestal behavior in future pilot plants. The impact of the
Externí odkaz:
https://doaj.org/article/02c1f1cb043448e88cd51bf41343e9bb
Autor:
A.M. Rosenthal, J.W. Hughes, F.M. Laggner, T. Odstrčil, A. Bortolon, T.M. Wilks, S. Mordijck, M.A. Miller, F. Sciortino
Publikováno v:
Nuclear Fusion, Vol 64, Iss 3, p 036006 (2024)
Transport in the DIII-D high confinement mode (H-mode) pedestal is investigated through a periodic edge gas puff modulation (GPM) which perturbs the deuterium density and source profiles. By using absolutely calibrated experimental edge ionization pr
Externí odkaz:
https://doaj.org/article/62f724e0f5ca41179b0c89b9bdb24f93
Autor:
R.A. Chaban, S. Mordijck, A.M. Rosenthal, A. Bortolon, J.W. Hughes, M. Knolker, F.M. Laggner, T.H. Osborne, L. Schmitz, K.E. Thome, T.M. Wilks
Publikováno v:
Nuclear Fusion, Vol 64, Iss 4, p 046008 (2024)
Experimental measurements on DIII-D of hydrogen neutral penetration lengths ( $\lambda_{n_0}$ ) on the high field side (HFS) are longer by a factor of $\sqrt{2}$ than for deuterium consistent with the thermal velocity ratio for neutrals at the same t
Externí odkaz:
https://doaj.org/article/87c6700efbe74d3794a0d88e3fe27fa4
Autor:
F. Effenberg, S. Abe, G. Sinclair, T. Abrams, A. Bortolon, W.R. Wampler, F.M. Laggner, D.L. Rudakov, I. Bykov, C.J. Lasnier, D. Mauzey, A. Nagy, R. Nazikian, F. Scotti, H.Q. Wang, R.S. Wilcox, the DIII-D Team
Publikováno v:
Nuclear Fusion, Vol 63, Iss 10, p 106004 (2023)
Experiments have been conducted in the DIII-D tokamak to explore the in-situ growth of silicon-rich layers as a potential technique for real-time replenishment of surface coatings on plasma-facing components (PFCs) during steady-state long-pulse reac
Externí odkaz:
https://doaj.org/article/781fb18a58d34d41b582be742856db3a
Autor:
A.M. Rosenthal, J.W. Hughes, F.M. Laggner, T. Odstrčil, A. Bortolon, T.M. Wilks, F. Sciortino
Publikováno v:
Nuclear Fusion, Vol 63, Iss 4, p 042002 (2023)
The plasma and neutral density dynamics after an edge localized mode are investigated and utilized to infer the plasma transport coefficients for the density pedestal. The Lyman-Alpha Measurement Apparatus (LLAMA) diagnostic provides sub-millisecond
Externí odkaz:
https://doaj.org/article/5b8fa76360484594b8fb23c87e901025
Publikováno v:
Nuclear Materials and Energy, Vol 19, Iss , Pp 479-486 (2019)
A variety of experimental studies on pedestal localized fluctuations appearing in between crashes of edge localized modes (ELMs) across several tokamaks have been reviewed and summarized. The onset of the inter-ELM fluctuations is correlated with the
Externí odkaz:
https://doaj.org/article/76a7c3876645477597a93600db8c4997
Autor:
M. Cavedon, R. Dux, T. Pütterich, E. Viezzer, E. Wolfrum, M. Dunne, E. Fable, R. Fischer, G.F. Harrer, F.M. Laggner, A.F. Mink, U. Plank, U. Stroth, M. Willensdorfer, ASDEX Upgrade Team
Publikováno v:
Nuclear Materials and Energy, Vol 18, Iss , Pp 275-280 (2019)
The access to fast measurements, i.e. Δt ≈ 100 µs, of the ions and the electrons during an entire edge localized cycle (ELM) reveals asymmetries in the recovery of the maximum edge gradients. Different magnetic fluctuations are found to correlate
Externí odkaz:
https://doaj.org/article/f656f3bb15bc43158bf040c9d50e321d
Publikováno v:
Nuclear Materials and Energy, Vol 26, Iss , Pp 100883- (2021)
Coupling between the UEDGE (edge fluid model), GINGRED (grid generation) and CAKE (equilibrium reconstruction) codes opens the door for automated interpretative scrape-off-layer (SOL) analysis over entire discharges, providing information that is ess
Externí odkaz:
https://doaj.org/article/6b3e2d105f4748f58a9994b0aad2e1e2
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Autor:
F. Effenberg, A. Bortolon, L. Casali, R. Nazikian, I. Bykov, F. Scotti, H.Q. Wang, M.E. Fenstermacher, R. Lunsford, A. Nagy, B.A. Grierson, F.M. Laggner, R. Maingi, null the DIII-D Team
Experiments with low-Z powder injection in DIII-D high confinement discharges demonstrated increased divertor dissipation and detachment while maintaining good core energy confinement. Lithium (Li), boron (B), and boron nitride (BN) powders were inje
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::62fb9410542904f9be1fe72197de5647