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Akademický článek
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Akademický článek
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Autor:
Jonathan Citrin, W. Guttenfelder, J W Connor, D.R. Ernst, M. J. Pueschel, Paul Terry, David Hatch
Publikováno v:
Plasma Physics and Controlled Fusion, 61, 034002
Higher excitation states along the background field of plasma instabilities dominate over standard, ground-state eigenmodes once the gradient drive becomes sufficiently strong. At this point, mode parity can no longer be used as the sole identifier o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::95de46fee67cec77527412fbedb340fe
https://doi.org/10.1088/1361-6587/aaf8c1
https://doi.org/10.1088/1361-6587/aaf8c1
Autor:
George McKee, C.C. Petty, A.M. Garofalo, D.R. Ernst, T. L. Rhodes, Brian Grierson, Motoki Nakata, Maiko Yoshida, C. Rost
Publikováno v:
Nuclear Fusion. 61:016013
The effect of magnetic shear on plasma transport for an electron to ion temperature ratio (T e/T i) near unity has been explored in DIII-D utilizing electron cyclotron heating (ECH). Previous reports showed that significant confinement degradation oc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3dc60bfdea9edbfefb0c1eb1ac363d17
https://doi.org/10.1088/1741-4326/abbfe7
https://doi.org/10.1088/1741-4326/abbfe7
Autor:
George McKee, Xi Chen, Kshitish Barada, Brian Grierson, T. L. Rhodes, T.H. Osborne, K. H. Burrell, D.R. Ernst, Zheng Yan, T. Odstricil, Carlos Paz-Soldan, W. M. Solomon, C.C. Petty, Theresa Wilks
Publikováno v:
Nuclear Fusion. 60:092006
Significant parameter space expansion of the wide-pedestal quiescent H-mode (QH-mode) towards more ITER and reactor relevant conditions has been achieved in the DIII-D tokamak. Recent experiments reveal this naturally ELM-free regime can operate over
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::67e76a19f48befeaaaa1cf14099f6d6c
https://doi.org/10.1088/1741-4326/ab9fa5
https://doi.org/10.1088/1741-4326/ab9fa5
Autor:
Matt Landreman, Randy Michael Churchill, Christian Theiler, J.R. Walk, Matthew Reinke, D.R. Ernst, Amanda Hubbard, Jerry Hughes, Ian H. Hutchinson, Felix I. Parra, Bruce Lipschultz, Earl Marmar, J. T. Terry, Peter J. Catto
Publikováno v:
Prof. Hutchinson via Chris Sherratt
Nuclear Fusion
Nuclear Fusion
We present inboard (HFS) and outboard (LFS) radial electric field (E[subscript r]) and impurity temperature (T[subscript z]) measurements in the I-mode and H-mode pedestal of Alcator C-Mod. These measurements reveal strong Er wells at the HFS and the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::845e77a7fa354108bb47324f7a8153f1
https://ora.ox.ac.uk/objects/uuid:310189c4-5d46-4721-8eab-1e7518dafa34
https://ora.ox.ac.uk/objects/uuid:310189c4-5d46-4721-8eab-1e7518dafa34
Autor:
Matthew Reinke, J.C. Rost, J. E. Rice, G. M. Staebler, Jeff Candy, Miklos Porkolab, Paul Ennever, D.R. Ernst, Jerry Hughes, Alcator C-Mod Team, S. G. Baek
Publikováno v:
MIT Web Domain
Recent experiments on C-mod seeding nitrogen into ohmic plasmas with [subscript q]95 = 3.4 found that the seeding greatly reduced long-wavelength (ITG-scale) turbulence. The long-wavelength turbulence that was reduced by the nitrogen seeding was loca
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6be4c819482dc3f63d6650da495f398f
https://orcid.org/0000-0002-9518-4097
https://orcid.org/0000-0002-9518-4097
Autor:
B. Zhao, P. E. Phillips, Saeid Houshmandyar, Amanda Hubbard, J. E. Rice, C. W. Horton, Nathan Howard, D.R. Ernst, Jerry Hughes, N. M. Cao, Martin Greenwald, K. T. Liao, David Hatch, William L. Rowan
Publikováno v:
Physics of Plasmas. 25:042305
A profile for the critical gradient scale length (Lc) has been measured in L-mode discharges at the Alcator C-Mod tokamak, where electrons were heated by an ion cyclotron range of frequency through minority heating with the intention of simultaneousl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::54c35cd95ac0d38074edc721d039d700
https://doi.org/10.1063/1.5022180
https://doi.org/10.1063/1.5022180
Autor:
E.S. Marmar, K. Zhurovich, P. E. Phillips, A.E. Hubbard, D.R. Ernst, P.T. Bonoli, Jerry Hughes, D. R. Mikkelsen, C.L. Fiore, J. E. Rice, Martin Greenwald
Publikováno v:
Nuclear Fusion. 47:1220-1231
Internal transport barriers (ITBs) can be routinely produced in enhanced Dα (EDA) H-mode discharges on the Alcator C-Mod tokamak by putting the minority ion cyclotron resonance layer at |r/a| ≥ 0.5 during the current flat top phase of the discharg
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::69fe2dc07b48b92ee88064f0c4a543b8
https://doi.org/10.1088/0029-5515/47/9/019
https://doi.org/10.1088/0029-5515/47/9/019
Autor:
D.R. Ernst, J. C. Hosea, T.C. Luce, L. W. Schmitz, J.C. Rost, George McKee, W. M. Solomon, Max E Austin, Francesca Turco, R.I. Pinsker, A.M. Garofalo, Alessandro Marinoni, C.C. Petty, Miklos Porkolab, G. Taylor, Brian Grierson, Rory Perkins
Publikováno v:
EPJ Web of Conferences, Vol 87, p 02003 (2015)
EPJ Web of Conferences
EPJ Web of Conferences
Recent DIII-D experiments in the ITER Baseline Scenario (IBS) have shown strong increases in fluctuations and correlated reduction of confinement associated with entering the electron-heating-dominated regime with strong electron cyclotron heating (E
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3fd8a116672c88dce9eb248dc3f3dc91
https://doaj.org/article/2992a4d4d4d54fb5b5835cbc8b62a658
https://doaj.org/article/2992a4d4d4d54fb5b5835cbc8b62a658