Zobrazeno 1 - 10
of 224
pro vyhledávání: '"J.D. Elder"'
Autor:
S.H. Messer, J.D. Mateja, J.H. Nichols, A. Cacheris, J.D. Duran, S.A. Zamperini, G. Sinclair, D. Donovan, T. Abrams, T. Odstrcil, J. Ren, W. Garcia, E.A. Unterberg, P.C. Stangeby, D.L. Rudakov, J.D. Elder, J. Watkins
Publikováno v:
Nuclear Materials and Energy, Vol 38, Iss , Pp 101566- (2024)
Experimental results from the 2022 tungsten (W)-coated Small Angle Slot (SAS-VW) divertor campaign at DIII-D coupled with interpretive 3DLIM modelling show opposing trends for core impurity content when compared to impurity deposition on far-Scrape O
Externí odkaz:
https://doaj.org/article/03b0cad7e73845f69d735a247277a35a
Autor:
S. Zamperini, T. Abrams, J. Nichols, E. Unterberg, A. Lasa, P. Stangeby, S. Bringuier, D. Rudakov, J.D. Elder
Publikováno v:
Nuclear Materials and Energy, Vol 37, Iss , Pp 101535- (2023)
Silicon carbide (SiC) is a promising material for use in a fusion reactor due to its low hydrogenic diffusivity, high temperature strength and resilience under neutron irradiation [1,2]. To assess SiC as a main wall material in DIII-D, simulations wi
Externí odkaz:
https://doaj.org/article/1b6dde4122454b4a8d6f605466ba8f54
Autor:
J.D. Elder, P.C. Stangeby, E.A. Unterberg, T. Abrams, J.A. Boedo, D. Donovan, A.G. McLean, D.L. Rudakov, W.R. Wampler, J.G. Watkins
Publikováno v:
Nuclear Materials and Energy, Vol 19, Iss , Pp 287-294 (2019)
Experimental evidence is presented of near-scrape off layer (SOL) tungsten accumulation near the crown of lower single-null L-mode discharges in the DIII-D Metal Rings Campaign, based on a peripheral-SOL collector probe (CP) array and OEDGE modelling
Externí odkaz:
https://doaj.org/article/cc5942092df043cfa89c532b3ef24805
Autor:
G.L. Xu, J. Guterl, T. Abrams, H.Q. Wang, P.F. Zhang, J.D. Elder, E.A. Unterberg, D.M. Thomas, H.Y. Guo, M.Y. Ye
Publikováno v:
Nuclear Materials and Energy, Vol 18, Iss , Pp 141-146 (2019)
The tungsten erosion process for an H-mode discharge from the DIII-D Metal Rings Campaign is modeled using OEDGE and TRIM.SP. The OEDGE code is employed to calculate tungsten erosion between edge-localized modes (ELMs). Then a newly developed semi-an
Externí odkaz:
https://doaj.org/article/6e57ce952506489ea26d2839b4165986
Autor:
S.A. Zamperini, J.D. Elder, P.C. Stangeby, J.H. Nichols, D.C. Donovan, J.D. Duran, E.A. Unterberg, D.L. Rudakov
Publikováno v:
Nuclear Materials and Energy, Vol 25, Iss , Pp 100811- (2020)
First results are reported from the 3D Monte Carlo far-SOL impurity transport code 3DLIM. Tungsten deposition profiles measured on a Collector Probe (CP) located in the far-SOL near the outer midplane, OMP, during W tracer experiments in DIII-D are r
Externí odkaz:
https://doaj.org/article/6f0e8c750b53447a96f62dc598b75f28
Autor:
J.D. Elder, P.C. Stangeby, T. Abrams, R. Ding, A.W. Leonard, A.G. McLean, D.L. Rudakov, E.A. Unterberg, J.G. Watkins
Publikováno v:
Nuclear Materials and Energy, Vol 12, Iss , Pp 755-761 (2017)
The OEDGE code is used to model tungsten erosion and transport for experiments with toroidal rings of high-Z metal tiles in the DIII-D tokamak. Such modeling is needed for both experimental and diagnostic design to have estimates of the expected core
Externí odkaz:
https://doaj.org/article/7b247fc25e734473b134a02741059d2a
Publikováno v:
Nuclear Materials and Energy, Vol 12, Iss , Pp 876-881 (2017)
The 2D spatial distributions of cross field drift velocities are calculated from 2D Thomson scattering measurements of Te and ne in the divertor and SOL of DIII-D. In contrast with the method that has been used on DIII-D where the 2D distribution of
Externí odkaz:
https://doaj.org/article/7c148a9ce2ac4178a80b3092b93b5b9a
Autor:
C.P. Chrobak, R.P. Doerner, P.C. Stangeby, W.R. Wampler, D.L. Rudakov, G.M. Wright, T. Abrams, R. Ding, J.D. Elder, J. Guterl, H.Y. Guo, C. Lasnier, D.M. Thomas, A.W. Leonard, D.A. Buchenauer, A.G. McLean, J.G. Watkins, G.R. Tynan
Publikováno v:
Nuclear Materials and Energy, Vol 12, Iss , Pp 441-446 (2017)
We present measurements and modeling of aluminum erosion and redeposition experiments in separate helium and deuterium low power, low density L-mode plasmas at the outer divertor strike point of DIII-D to provide a low-Z material benchmark dataset fo
Externí odkaz:
https://doaj.org/article/246c0e248d5f491ebb2c7e69bac326f2
Autor:
R. Ding, D.L. Rudakov, P.C. Stangeby, W.R. Wampler, T. Abrams, S. Brezinsek, A. Briesemeister, I. Bykov, V.S. Chan, C.P. Chrobak, J.D. Elder, H.Y. Guo, J. Guterl, A. Kirschner, C.J. Lasnier, A.W. Leonard, M.A. Makowski, A.G. McLean, P.B. Snyder, D.M. Thomas, D. Tskhakaya, E.A. Unterberg, H.Q. Wang, J.G. Watkins
Publikováno v:
Nuclear Materials and Energy, Vol 12, Iss , Pp 247-252 (2017)
As High-Z materials will likely be used as plasma-facing components (PFCs) in future fusion devices, the erosion of high-Z materials is a key issue for high-power, long pulse operation. High-Z material erosion and redeposition have been studied using
Externí odkaz:
https://doaj.org/article/08a8540dec8d417dbedf6716820ad176
Publikováno v:
Nuclear Fusion. 62:106024
Impurity transport modeling of the new tungsten (W)-coated, V-shaped small angle slot (SAS) divertor in the DIII-D tokamak was conducted using the SOLPS-ITER plasma edge code package and the DIVIMP impurity tracking code. The inboard baffle of the cu