Zobrazeno 1 - 10
of 130
pro vyhledávání: '"J. W. Hughes"'
Publikováno v:
AIP Advances, Vol 10, Iss 1, Pp 015222-015222-12 (2020)
The fluid transport code [trans-electric field (Er) module] under the BOUT++ framework has been used to simulate divertor heat flux width and boundary Er with all drifts and the sheath potential in the scrape-off layer. The calculated steady state ra
Externí odkaz:
https://doaj.org/article/1efacc660af0467a96f1d14e044a5dfe
Autor:
T Luda, C Angioni, M G Dunne, E Fable, A Kallenbach, N Bonanomi, P A Schneider, M Siccinio, G Tardini, P Rodriguez-Fernandez, J W Hughes, N Howard, L Frassinetti, S Saarelma, The ASDEX Upgrade Team, The EUROfusion MST1 Team, The Alcator C-Mod Team, JET contributors
Publikováno v:
Plasma Physics and Controlled Fusion
The recently developed integrated model based on engineering parameters (IMEP) (Luda et al 2020 Nucl. Fusion 61 126048; Luda et al 2021 Nucl. Fusion 60 036023), so far validated on ASDEX Upgrade, has been tested on a database of 3 Alcator C-Mod and 5
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::df7d0fa5fa12da26cea8a74f38421ec4
https://hdl.handle.net/21.11116/0000-000C-B000-C21.11116/0000-000C-B002-A
https://hdl.handle.net/21.11116/0000-000C-B000-C21.11116/0000-000C-B002-A
Autor:
A. Mathews, J. L. Terry, S. G. Baek, J. W. Hughes, A. Q. Kuang, B. LaBombard, M. A. Miller, D. Stotler, D. Reiter, W. Zholobenko, M. Goto
Publikováno v:
Review of Scientific Instruments
The role of turbulence in setting boundary plasma conditions is presently a key uncertainty in projecting to fusion energy reactors. To robustly diagnose edge turbulence, we develop and demonstrate a technique to translate brightness measurements of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0f4942f227bea82a0aa7582c305ffd8a
http://arxiv.org/abs/2201.09988
http://arxiv.org/abs/2201.09988
Autor:
T. Odstrcil, F. M. Laggner, A. M. Rosenthal, A. Bortolon, J. W. Hughes, J. C. Spendlove, T. M. Wilks
Publikováno v:
Review of Scientific Instruments. 93:103503
Electromagnetic pickup noise in the tokamak environment imposes an imminent challenge for measuring weak diagnostic photocurrents in the nA range. The diagnostic signal can be contaminated by an unknown mixture of crosstalk signals from coils powered
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5faa8c5dcadd5ec21c20248676d6cfe6
https://doi.org/10.1063/5.0100988
https://doi.org/10.1063/5.0100988
A key uncertainty in the design and development of magnetic confinement fusion energy reactors is predicting edge plasma turbulence. An essential step in overcoming this uncertainty is the validation in accuracy of reduced turbulent transport models.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::24f0a0c72a35916884134f109aea40a2
http://arxiv.org/abs/2107.09744
http://arxiv.org/abs/2107.09744
Autor:
Marguerite Hoerger, Emily Tyler, Richard P. Hastings, Amy Hulson-Jones, Sarah Roberts, J. W. Hughes, Richard C. Watkins
Publikováno v:
Cylchgrawn Addysg Cymru / Wales Journal of Education. 21:89-108
In this case study, we describe the work undertaken since 2004 in the journey to develop a collaborative model of working aimed at building the capacity and relevance of education research and evaluation across the North Wales region. The work has cu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6d6cab870b9b4ad22f2f86cf3a53354a
https://doi.org/10.16922/wje.21.1.6
https://doi.org/10.16922/wje.21.1.6
Autor:
Choong-Seock Chang, Randy Michael Churchill, J. W. Hughes, F. Köchl, R.A. Pitts, Seung-Hoe Ku, Robert Hager, A. Loarte, V. Parail
Understanding and predicting divertor heat-load width ${\lambda}_q$ is a critically important problem for an easier and more robust operation of ITER with high fusion gain. Previous predictive simulation data for ${\lambda}_q$ using the extreme-scale
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a9fdc42b8581f1545d00a76d81fd9fce
http://arxiv.org/abs/2012.10750
http://arxiv.org/abs/2012.10750
Autor:
Martin Greenwald, Dan Brunner, Matthew Reinke, J. H. Irby, Alexander Creely, Adam Kuang, S. B. Ballinger, John Canik, D.G. Whyte, Bruce Lipschultz, T.K. Gray, Brian LaBombard, J. W. Hughes, Maxim Umansky, J.L. Terry, Jeremy Lore, S.J. Wukitch
Publikováno v:
Cambridge University Press
Owing to its high magnetic field, high power, and compact size, the SPARC experiment will operate with divertor conditions at or above those expected in reactor-class tokamaks. Power exhaust at this scale remains one of the key challenges for practic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bf3ed6b7a9eaaffc2a77426522b1345f
https://eprints.whiterose.ac.uk/166979/1/divertor_heat_flux_challenge_and_mitigation_in_sparc.pdf
https://eprints.whiterose.ac.uk/166979/1/divertor_heat_flux_challenge_and_mitigation_in_sparc.pdf
Autor:
Yuxuan Lin, Martin Greenwald, Alexander Creely, Pablo Rodriguez-Fernandez, J. W. Hughes, Christopher Holland, John Wright, Nathan Howard, F. Sciortino
Publikováno v:
Journal of Plasma Physics. 86
SPARC is designed to be a high-field, medium-size tokamak aimed at achieving net energy gain with ion cyclotron range-of-frequencies (ICRF) as its primary auxiliary heating mechanism. Empirical predictions with conservative physics indicate that SPAR
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5ff2e5c6200c22145eccecb696968154
https://doi.org/10.1017/s0022377820001075
https://doi.org/10.1017/s0022377820001075
Autor:
Pablo Rodriguez-Fernandez, Earl Marmar, N. M. Cao, John Rice, L. M. Milanese, Tomas Odstrcil, Amanda Hubbard, R. Dux, J. Irby, F. Sciortino, Matthew Reinke, Youssef M. Marzouk, Nathaniel Thomas Howard, J. W. Hughes
Publikováno v:
arXiv
Nuclear Fusion
Nuclear Fusion
We present a fully Bayesian approach for the inference of radial profiles of impurity transport coefficients and compare its results to neoclassical, gyrofluid and gyrokinetic modeling. Using nested sampling, the Bayesian Impurity Transport InferencE
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6a145f5753423afccfa91216b47cda7d
https://hdl.handle.net/1721.1/133298
https://hdl.handle.net/1721.1/133298