Results 51 to 60 of about 15,788,610 (233)

Deuterium retention behaviors of boronization films at DIII-D divertor surface

Nuclear Materials and Energy
Boron coating of plasma-facing components (PFCs) is widely used in fusion devices to form surface coatings and chemical compounds on the PFCs, thus suppressing plasma contamination by impurities such as oxygen, carbon, and tungsten.
Shota Abe, Michael J. Simmonds, Alessandro Bortolon, Florian Effenberg, Igor Bykov, Jun Ren, Dmitry L. Rudakov, Ryan Hood, Alan W. Hyatt, Zihan Lin, Tyler Abrams   +10 more
doaj   +1 more source

Validating the Multi-Mode Model’s Ability to Reproduce Diverse Tokamak Scenarios

Plasma, 2023
A large-scale validation exercise was conducted to assess the multi-mode model (MMM) anomalous transport model in the integrated modeling code TRANSP. The validation included 6 EAST discharges, 17 KSTAR discharges, 72 JET ITER-like wall D-D discharges ...
Tariq Rafiq, Zibo Wang, Shira Morosohk, Eugenio Schuster, Jan Weiland, Wilkie Choi, Hyun-Tae Kim   +6 more
doaj   +1 more source

Overview of results from the 2023 DIII-D negative triangularity campaign

Plasma Physics and Controlled Fusion
Negative triangularity (NT) is a potentially transformative configuration for tokamak-based fusion energy with its high-performance core, edge localized mode (ELM)-free edge, and low-field-side divertors that could readily scale to an integrated reactor ...
K. Thome, Max E Austin, A. W. Hyatt, A. Marinoni, A. Nelson, C. Paz-Soldan, F. Scotti, W. Boyes, L. Casali, C. Chrystal, S. Ding, Xiaodi Du, D. Eldon, D. Ernst, R. Hong, G. Mckee, S. Mordijck, O. Sauter, L. Schmitz, J. Barr, M. Burke, S. Coda, T. Cote, M. Fenstermacher, A. Garofalo, F. Khabanov, Gerrit J Kramer, C. Lasnier, N. Logan, P. Lunia, Adam G McLean, M. Okabayashi, D. Shiraki, S. D. Stewart, Y. Takemura, D. Truong, T. H. Osborne, M. V. Van Zeeland, B. Victor, H. Wang, Jon Watkins, W. Wehner, A. Welander, T. Wilks, James Yang, G. Yu, L. Zeng   +46 more
semanticscholar   +1 more source

Intermittent convection in the boundary of DIII-D [PDF]

Journal of Nuclear Materials, 2003
Abstract Intermittent plasma objects (IPOs) featuring higher pressure than the surrounding plasma, and responsible for ∼50% of the E × B T radial transport, are observed in the scrape-off layer (SOL) and edge of the DIII-D tokamak. The skewness (i.e., asymmetry of fluctuations from the average) of probe and BES intermittent data suggest IPO ...
J.A. Boedo, D.L. Rudakov, R.J. Colchin, R.A. Moyer, S. Krasheninnikov, D.G. Whyte, G.R. McKee, G. Porter, M.J. Schaffer, P.C. Stangeby, W.P. West, S.L. Allen, A.W. Leonard   +12 more
openaire   +1 more source

Density limit studies on DIII-D [PDF]

Journal of Nuclear Materials, 1999
Abstract We have studied the processes limiting plasma density and successfully achieved discharges with density ∼50% above the empirical Greenwald scaling with H-mode energy confinement. This was accomplished by density profile control, enabled through pellet injection and divertor pumping.
R. Maingi, M.A. Mahdavi, T.W. Petrie, L.R. Baylor, T.C. Jernigan, R.J. La Haye, A.W. Hyatt, M.R. Wade, J.G. Watkins, D.G. Whyte   +9 more
openaire   +1 more source

High fusion performance in Super H-mode experiments on Alcator C-Mod and DIII-D

Nuclear Fusion, 2019
The ‘Super H-Mode’ regime is predicted to enable pedestal height and fusion performance substantially higher than standard H-Mode operation. This regime exists due to a bifurcation of the pedestal pressure, as a function of density, that is predicted by ...
P. Snyder, J. Hughes, T. Osborne, C. Paz-Soldan, W. Solomon, M. Knolker, D. Eldon, T. Evans, T. Golfinopoulos, B. Grierson, R. Groebner, A. Hubbard, E. Kolemen, B. LaBombard, F. Laggner, O. Meneghini, S. Mordijck, T. Petrie, S. Scott, H. Wang, H. Wilson, Yunmin Zhu   +21 more
semanticscholar   +1 more source

Trends in runaway electron plateau partial recombination by massive H2 or D2 injection in DIII-D and JET and first extrapolations to ITER and SPARC

Nuclear Fusion, 2023
Experimental trends in thermal plasma partial recombination resulting from massive ${{\text{D}}_2}$ injection into high-Z (Ar) containing runaway electron (RE) plateaus in DIII-D and JET are studied for the purpose of achieving sufficiently low electron ...
E.M. Hollmann, L. Baylor, A. Boboc, P. Carvalho, N.W. Eidietis, J.L. Herfindal, S. Jachmich, A. Lvovskiy, C. Paz-Soldan, C. Reux, D. Shiraki, R. Sweeney, JET Contributors   +12 more
doaj   +1 more source

Wide Operational Windows of Edge-Localized Mode Suppression by Resonant Magnetic Perturbations in the DIII-D Tokamak.

Physical Review Letters, 2020
Edge-localized mode (ELM) suppression by resonant magnetic perturbations (RMPs) generally occurs over very narrow ranges of the plasma current (or magnetic safety factor q_{95}) in the DIII-D tokamak.
Q. Hu, R. Nazikian, B. Grierson, N. Logan, D. Orlov, C. Paz-Soldan, Q. Yu   +6 more
semanticscholar   +1 more source

Cooperative program on DIII-D [PDF]

, 1991
The main contribution of the Berkeley group to data has concerned ion temperature profile data reduction and transport analysis using this data. In addition, our graduate students have worked on fundamental aspects of transport theory, under the guidance of the Principal Investigator, to prepare them for productive participation in the D3-D program ...
openaire   +2 more sources

The C-Terminal Domain of the Bacillus thuringiensis Cry4Ba Mosquito-Specific Toxin Serves as a Potential Membrane Anchor

Toxins, 2019
Although the C-terminal domain (DIII) of three-domain Cry insecticidal toxins from Bacillus thuringiensis has been implicated in various biological functions, its exact role still remains to be elucidated.
Anon Thammasittirong, Chompounoot Imtong, Wilaiwan Sriwimol, Somsri Sakdee, Chanan Angsuthanasombat   +4 more
doaj   +1 more source