Výsledky vyhledávání - "Wallace, Gregory Marriner"

Alcator C-Mod: research in support of ITER and steps beyond

Autor: Candy, J., Canik, J., Churchill, R.M., Holland, C., Loarte, A., Reinke, M.L., Scott, S., Snyder, P., Theiler, C., Diallo, A., Edlund, E., LaBombard, B., Baek, Seung Gyou, Marmar, Earl S, Barnard, Harold Salvadore, Bonoli, Paul T, Brunner, Daniel Frederic, Ennever, Paul Chappell, Fiore, Catherine L, Gao, Chi, Golfinopoulos, Theodore, Greenwald, Martin J, Hartwig, Zachary Seth, Hubbard, Amanda E, Hughes Jr, Jerry, Hutchinson, Ian Horner, Irby, James Henderson, Labombard, Brian, Lin, Yijun, Mumgaard, Robert Thomas, Parker, Ronald R, Porkolab, Miklos, Rice, John E, Shiraiwa, Shunichi, Sorbom, Brandon Nils, Terry, David Rankin, Terry, James L, Vieira, Rui F, Walk Jr, John R, Wallace, Gregory Marriner, White, Anne E., Whyte, Dennis G, Wolfe, Stephen M, Wright, John C, Wright, Graham, Wukitch, Stephen James, Xu, Peng, Cziegler, Istvan, Dekow, Gary L, Delgado-Aparicio, Luis, Lipschultz, Bruce, Theiler, Christian, Diallo, Ahmed Y, Edlund, Eric Matthias, Faust, Ian Charles

Publikováno v: Prof. Hutchinson via Chris Sherratt

This paper presents an overview of recent highlights from research on Alcator C-Mod. Significant progress has been made across all research areas over the last two years, with particular emphasis on divertor physics and power handling, plasma–mater

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d008d5fd8fc2b3de2e7f6dcda822c1da
https://orcid.org/0000-0003-4432-5504

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High-field side scrape-off layer investigation: Plasma profiles and impurity screening behavior in near-double-null configurations

Autor: S.M. Wolfe, G.M. Wallace, D.G. Whyte, Robert Mumgaard, Dan Brunner, Jerry Hughes, Brian LaBombard, Adam Kuang, S.J. Wukitch, J.R. Walk, J.L. Terry, Yuxuan Lin, M. Chilenski, Matthew Reinke, Earl Marmar, Ian Faust

Publikováno v: Nuclear Materials and Energy, Vol 12, Iss, Pp 139-147 (2017)
Elsevier

New experiments on Alcator C-Mod reveal that the favorable impurity screening characteristics of the high-field side (HFS) scrape-off layer (SOL), previously reported for single null geometries, is retained in double null configurations, despite the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fdf16c8e4838efa5613b029983ff0ed7
https://doi.org/10.1016/j.nme.2016.10.006

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LHCD during current ramp experiments on Alcator C-Mod

Autor: Gregory Wallace, S. D. Scott, Syun'ichi Shiraiwa, Robert Mumgaard, Jerry Hughes, Francesca Poli, S.J. Wukitch, M. Chilenski

Publikováno v: EPJ Web of Conferences
EPJ Web of Conferences, Vol 157, p 03063 (2017)

The lower hybrid current drive (LHCD) system on Alcator C-Mod is capable of sustaining fully non-inductive discharges for multiple current relaxation times (τ cr ∼ 200 ms) at line averaged densities in the range of 5x10 19 m -3 . Some of these non

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::496e194b8350a4663540c54cdc1379ca
https://orcid.org/0000-0002-3757-7730

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Lower hybrid wave edge power loss quantification on the Alcator C-Mod tokamak

Autor: Dan Brunner, Jerry Hughes, Gregory Wallace, Adam Kuang, Ian Faust, E.M. Edlund, Amanda Hubbard, J.L. Terry, Dennis G. Whyte, Ronald R. Parker, Brian LaBombard, S. Shiraiwa, J.R. Walk, Matthew Reinke, Seung Gyou Baek

Publikováno v: Prof. Whyte via Chris Sherratt

For the first time, the power deposition of lower hybrid RF waves into the edge plasma of a diverted tokamak has been systematically quantified. Edge deposition represents a parasitic loss of power that can greatly impact the use and efficiency of Lo

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1495b0a8f6507e3779b35df1cbab4a3b
http://hdl.handle.net/1721.1/108781

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High density LHRF experiments in Alcator C-Mod and implications for reactor scale devices

Autor: Brian LaBombard, Seung Gyou Baek, Paul Bonoli, Miklos Porkolab, S. Shiraiwa, Gregory Wallace, Ian Faust, Dennis Whyte, Ronald R. Parker

Publikováno v: Prof. Porkolab via Chris Sherratt

Parametric decay instabilities (PDI) appear to be an ubiquitous feature of lower hybrid current drive (LHCD) experiments at high density. In density ramp experiments in Alcator C-Mod and other machines the onset of PDI activity has been well correlat

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1ed5c4abf6462dad94dab63f6be32890
https://orcid.org/0000-0003-4432-5504

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High field side launch of RF waves: A new approach to reactor actuators

Autor: R.F. Vieira, S.J. Wukitch, Ian Faust, D.G. Whyte, Robert Mumgaard, Gregory Wallace, R.R. Parker, Syun'ichi Shiraiwa, Y. Lin, P.T. Bonoli, S. G. Baek, Brian LaBombard

Publikováno v: Prof. Whyte via Chris Sherratt

Launching radio frequency (RF) waves from the high field side (HFS) of a tokamak offers significant advantages over low field side (LFS) launch with respect to both wave physics and plasma material interactions (PMI). For lower hybrid (LH) waves, the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::426729516701670cca035b7f1e805840
https://doi.org/10.1063/1.4936482

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Analysis of double stub tuner control stability in a phased array antenna with strong cross-coupling

Autor: P. Koert, Syun'ichi Shiraiwa, Julien Hillairet, S.J. Wukitch, Gregory Wallace, Yu-Ming Lin

Publikováno v: MIT Plasma Science & Fusion Center

Active stub tuning with a fast ferrite tuner (FFT) has greatly increased the effectiveness of fusion ion cyclotron range of frequency (ICRF) systems (50–100 MHz) by allowing for the antenna system to respond dynamically to changes in the plasma loa

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9461f3c2abccc2823b19093b415730ef
http://hdl.handle.net/1721.1/111167

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