Zobrazeno 1 - 10
of 46
pro vyhledávání: '"Mark D Boyer"'
Autor:
Viraj Mehta, Jayson Barr, Joseph Abbate, Mark D Boyer, Ian Char, Willie Neiswanger, Egemen Kolemen, Jeff Schneider
Publikováno v:
Nuclear Fusion, Vol 64, Iss 4, p 046014 (2024)
Typically the rampdown phase of a shot consists of a decrease in current and injected power and optionally a change in shape, but there is considerable flexibility in the rate, sequencing, and duration of these changes. On the next generation of toka
Externí odkaz:
https://doaj.org/article/3e8791cdb3cd474eabe913367aec0c0b
Autor:
Walter Guttenfelder, D J Battaglia, Elena Belova, Nicola Bertelli, Mark D Boyer, Choong Seock Chang, Ahmed Diallo, Vinicius N Duarte, Fatima Ebrahimi, Eric Emdee, N Ferraro, Eric Fredrickson, Nikolai N Gorelenkov, William W Heidbrink, Zeki Ilhan, Stanley M Kaye, Eun-Hwa Kim, Andreas Kleiner, Florian M. Laggner, Mate Lampert, Jeff Lestz, Chang Liu, Deyong Liu, Tom Looby, Noah Mandell, Rajesh Maingi, James R Myra, Stefano Munaretto, Mario Podesta, Tariq Rafiq, Roger Raman, Matthew Reinke, Yang Ren, Juan Ruiz Ruiz, Filippo Scotti, Syun'ichi Shiraiwa, Vlad Soukhanovskii, Patrick Vail, Zhirui Wang, Will P Wehner, Anne E White, Roscoe B White, Benjamin J Q Woods, James Yang, Stewart Zweben, Santanu Banerjee, Robert Barchfeld, Ronald E Bell, John Berkery, Amitawa Bhattacharjee, Andreas Bierwage, Gustavo Paganini Canal, Xiang Chen, Cesar Fernando Clauser, Neal A Crocker, C W Domier, Todd E Evans, Manaure Francisquez, Kaifu Gan, Stefan P Gerhardt, Robert James Goldston, Travis K Gray, Ammar Hakim, Gregory W Hammett, Stephen C Jardin, Robert Kaita, Bruce E Koel, Egemen Kolemen, Seung-Hoe Ku, Shigeyuki Kubota, Benoit P LeBlanc, Fred Levinton, Jeremy D Lore, Neville C Luhmann, R. Lunsford, Ricardo Maqueda, Jonathan E Menard, Jacob H Nichols, Masayuki Ono, Jong-Kyu Park, Francesca M Poli, Terry L Rhodes, Juan Riquezes, Dave A Russell, Steve A Sabbagh, Eugenio Schuster, David Smith, Daren P Stotler, Brentley Stratton, Kevin Tritz, Weixing Wang, Brian D Wirth
Publikováno v:
Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP
Universidade de São Paulo (USP)
instacron:USP
The mission of the low aspect ratio spherical tokamak NSTX-U is to advance the physics basis and technical solutions required for optimizing the configuration of next-step steady-state tokamak fusion devices. NSTX-U will ultimately operate at up to 2
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::da658a41081a6c68dca395062b7ae500
https://doi.org/10.1088/1741-4326/ac5448
https://doi.org/10.1088/1741-4326/ac5448
Publikováno v:
Nuclear Fusion. 62:026022
GPECnet is a densely connected neural network that has been trained on GPEC data, to predict the plasma stability, neoclassical toroidal viscosity (NTV) torque, and optimized 3D coil current distributions for desired NTV torque profiles. Using NTV to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1b7657f743dd03b8dfc2c085a6f78b92
https://doi.org/10.1088/1741-4326/ac3e83
https://doi.org/10.1088/1741-4326/ac3e83
Publikováno v:
Nuclear Fusion. 62:026005
This paper describes a real-time capable algorithm for identifying the safe operating region around a tokamak operating point. The region is defined by a convex set of linear constraints, from which the distance of a point from a disruptive boundary
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::02dd9f4bfbf8430c81771366476e4a6e
https://doi.org/10.1088/1741-4326/ac359e
https://doi.org/10.1088/1741-4326/ac359e
Autor:
Robert D. Johnson, William Wehner, J.R. Ferron, Justin Barton, Wenyu Shi, D.A. Humphreys, T.C. Luce, Eugenio Schuster, Mark D. Boyer, M.L. Walker, D. Moreau, B.G. Penaflor
Publikováno v:
Fusion Engineering and Design. 117:39-57
A control-oriented, two-timescale, linear, dynamic, response model of the rotational transform ι profile and the normalized beta βN is proposed based on experimental data from the DIII-D tokamak. Dedicated system-identification experiments without
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::71c06a4df152cfcd69d7f8d65253d282
https://doi.org/10.1016/j.fusengdes.2017.01.003
https://doi.org/10.1016/j.fusengdes.2017.01.003
Autor:
Mark D. Boyer, Jason Chadwick
Publikováno v:
Nuclear Fusion. 61:046024
A new model for prediction of electron density and pressure profile shapes on NSTX and NSTX-U has been developed using neural networks. The model has been trained and tested on measured profiles from experimental discharges during the first operation
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8a8af2dae01a0862cd7527cd440ceae1
https://doi.org/10.1088/1741-4326/abe08b
https://doi.org/10.1088/1741-4326/abe08b
Autor:
Robert D. Johnson, T.C. Luce, Justin Barton, Eugenio Schuster, Ben G. Penaflor, Michael L. Walker, J.R. Ferron, David Humphreys, Mark D. Boyer
Publikováno v:
IEEE Transactions on Control Systems Technology. 22:1725-1739
One of the most promising devices for realizing power production through nuclear fusion is the tokamak. To maximize performance, it is preferable that tokamak reactors achieve advanced operating scenarios characterized by good plasma confinement, imp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7abbe5c9a7fc3b5302874d7b49257435
https://doi.org/10.1109/tcst.2013.2296493
https://doi.org/10.1109/tcst.2013.2296493
Autor:
Mark D. Boyer, B.G. Penaflor, Eugenio Schuster, Robert D. Johnson, Justin Barton, J.R. Ferron, Michael L. Walker, Wenyu Shi, Tim C. Luce, D.A. Humphreys, William Wehner, Francesca Turco
Publikováno v:
IFAC Proceedings Volumes. 47:1568-1573
Control of the current profile in tokamak plasmas has been shown to play an important role in achieving advanced scenarios that could enable steady-state operation. The nonlinearity and spatially distributed nature of the current profile dynamics mot
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8f0aa98531c0953d0cd6f4643d563008
https://doi.org/10.3182/20140824-6-za-1003.01712
https://doi.org/10.3182/20140824-6-za-1003.01712
Autor:
Eugenio Schuster, Mark D. Boyer
Publikováno v:
IFAC Proceedings Volumes. 47:3702-3707
The next experimental step in the development of nuclear fusion reactors is the ITER tokamak. It is designed to explore the burning plasma regime in which the plasma temperature is sustained mostly by self-heating from fusion reactions. Burn control,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::995b5a6d01c9678f47e0a473a0d8f393
https://doi.org/10.3182/20140824-6-za-1003.01714
https://doi.org/10.3182/20140824-6-za-1003.01714
Autor:
Ben G. Penaflor, William Wehner, Justin Barton, Michael L. Walker, Mark D. Boyer, Tim C. Luce, Robert D. Johnson, Francesca Turco, J.R. Ferron, David Humphreys, Eugenio Schuster, Wenyu Shi
Publikováno v:
IFAC Proceedings Volumes. 47:5223-5228
Active closed-loop control of the plasma safety factor profile ( q -profile) and internal energy dynamics in nuclear fusion tokamak devices has the potential to significantly impact the success of the ITER project. These plasma properties are related
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::51150aca7457ed9acf155ee5435d2ba0
https://doi.org/10.3182/20140824-6-za-1003.01718
https://doi.org/10.3182/20140824-6-za-1003.01718