Realtime Data Fusion for Nuclear Fusion


 Caren Hart
 1 years ago
 Views:
Transcription
1 Realtime Data Fusion for Nuclear Fusion Chris Rapson R. Fischer, L. Giannone, M. Reich, W. Treutterer & the ASDEX Upgrade Team MPI for Plasma Physics, Garching ASDEX Upgrade This work has been carried out within the framework of the EUROfusion Consortium and has received funding from the Euratom research and training programme 8 under grant agreement No The views and opinions epressed herein do not necessarily reflect those of the European Commission.
2 ydata fusion in daily life ASDEX Upgrade Principle: combine independent measurements to improve parameter estimate hear a bang, turn to look Realtime Data Fusion for Nuclear Fusion /5
3 ydata fusion in daily life ASDEX Upgrade Principle: combine independent measurements to improve parameter estimate hear a bang, turn to look position estimation phones: GPS, WiFi, Accelerometer cars: as above, plus wheel encoders, LIDAR, Sonar, cameras, IR... [ Realtime Data Fusion for Nuclear Fusion /5
4 ydata fusion in daily life ASDEX Upgrade Principle: combine independent measurements to improve parameter estimate hear a bang, turn to look position estimation phones: GPS, WiFi, Accelerometer cars: as above, plus wheel encoders, LIDAR, Sonar, cameras, IR... [ sports refereeing player statistics entertainment [ Realtime Data Fusion for Nuclear Fusion /5
5 ydata fusion in theory A large body of work, applied to many different fields combine two independent measurements E( obs, = σ E( obs σ, = σ σ + σ + σ + σ E( obs σ + σ P( obs P( obs Realtime Data Fusion for Nuclear Fusion 3/5
6 ydata fusion in theory A large body of work, applied to many different fields combine two independent measurements E( obs, = σ E( obs σ, = σ σ + σ + σ + σ E( obs σ + σ P( obs P( obs P( obs, Realtime Data Fusion for Nuclear Fusion 3/5
7 ydata fusion in theory A large body of work, applied to many different fields combine two independent measurements E( obs, = σ E( obs σ, = σ σ + σ + σ + σ E( obs σ + σ P( obs P( obs P( obs, identify and correct systematic errors & drifts if E( obs E( obs, > large error { } fi(obs line integrated density [ 9 m 3 ] 8 #987 DCN H DCN H Thomson time [s] Realtime Data Fusion for Nuclear Fusion 3/5
8 ydata fusion in theory We can also include our prior knowledge of the system dynamics Kalman Filter optimal for linear systems with Gaussian noise developed in the 6s flew on the Apollo missions Etended Kalman Filter local linearisation of nonlinear systems with Gaussian noise Particle Filter fully nonlinear system and noise e.g. linear model ( = +.5 with bimodal measurement (aliasing, mirroring or modulo π obs t,t obs t obs t P( t obs t Realtime Data Fusion for Nuclear Fusion /5
9 ydata fusion in theory We can also include our prior knowledge of the system dynamics Kalman Filter optimal for linear systems with Gaussian noise developed in the 6s flew on the Apollo missions Etended Kalman Filter local linearisation of nonlinear systems with Gaussian noise Particle Filter fully nonlinear system and noise e.g. linear model ( = +.5 with bimodal measurement (aliasing, mirroring or modulo π P( t obs t obs t obs t obs t,t P( initial estimate particles true value Realtime Data Fusion for Nuclear Fusion /5
10 ydata fusion in theory We can also include our prior knowledge of the system dynamics Kalman Filter optimal for linear systems with Gaussian noise developed in the 6s flew on the Apollo missions Etended Kalman Filter local linearisation of nonlinear systems with Gaussian noise Particle Filter fully nonlinear system and noise e.g. linear model ( = +.5 with bimodal measurement (aliasing, mirroring or modulo π P( t obs t obs t obs t obs t,t P( measured, t= Realtime Data Fusion for Nuclear Fusion /5
11 ydata fusion in theory We can also include our prior knowledge of the system dynamics Kalman Filter optimal for linear systems with Gaussian noise developed in the 6s flew on the Apollo missions Etended Kalman Filter local linearisation of nonlinear systems with Gaussian noise Particle Filter fully nonlinear system and noise e.g. linear model ( = +.5 with bimodal measurement (aliasing, mirroring or modulo π P( t obs t obs t obs t obs t,t P( resampled, t= Realtime Data Fusion for Nuclear Fusion /5
12 ydata fusion in theory We can also include our prior knowledge of the system dynamics Kalman Filter optimal for linear systems with Gaussian noise developed in the 6s flew on the Apollo missions Etended Kalman Filter local linearisation of nonlinear systems with Gaussian noise Particle Filter fully nonlinear system and noise e.g. linear model ( = +.5 with bimodal measurement (aliasing, mirroring or modulo π P( t obs t obs t obs t obs t,t P( evolved, t= Realtime Data Fusion for Nuclear Fusion /5
13 ydata fusion in theory We can also include our prior knowledge of the system dynamics Kalman Filter optimal for linear systems with Gaussian noise developed in the 6s flew on the Apollo missions Etended Kalman Filter local linearisation of nonlinear systems with Gaussian noise Particle Filter fully nonlinear system and noise e.g. linear model ( = +.5 with bimodal measurement (aliasing, mirroring or modulo π P( t obs t obs t obs t obs t,t P( measured, t= Realtime Data Fusion for Nuclear Fusion /5
14 ydata fusion in theory We can also include our prior knowledge of the system dynamics Kalman Filter optimal for linear systems with Gaussian noise developed in the 6s flew on the Apollo missions Etended Kalman Filter local linearisation of nonlinear systems with Gaussian noise Particle Filter fully nonlinear system and noise e.g. linear model ( = +.5 with bimodal measurement (aliasing, mirroring or modulo π P( t obs t obs t obs t obs t,t P( resampled, t= Realtime Data Fusion for Nuclear Fusion /5
15 ydata fusion in theory We can also include our prior knowledge of the system dynamics Kalman Filter optimal for linear systems with Gaussian noise developed in the 6s flew on the Apollo missions Etended Kalman Filter local linearisation of nonlinear systems with Gaussian noise Particle Filter fully nonlinear system and noise e.g. linear model ( = +.5 with bimodal measurement (aliasing, mirroring or modulo π P( t obs t obs t obs t obs t,t P( evolved, t= Realtime Data Fusion for Nuclear Fusion /5
16 ydata fusion in theory We can also include our prior knowledge of the system dynamics Kalman Filter optimal for linear systems with Gaussian noise developed in the 6s flew on the Apollo missions Etended Kalman Filter local linearisation of nonlinear systems with Gaussian noise Particle Filter fully nonlinear system and noise e.g. linear model ( = +.5 with bimodal measurement (aliasing, mirroring or modulo π P( t obs t obs t obs t obs t,t P( measured, t= Realtime Data Fusion for Nuclear Fusion /5
17 ydata fusion in theory We can also include our prior knowledge of the system dynamics Kalman Filter optimal for linear systems with Gaussian noise developed in the 6s flew on the Apollo missions Etended Kalman Filter local linearisation of nonlinear systems with Gaussian noise Particle Filter fully nonlinear system and noise e.g. linear model ( = +.5 with bimodal measurement (aliasing, mirroring or modulo π P( t obs t obs t obs t obs t,t P( resampled, t= Realtime Data Fusion for Nuclear Fusion /5
18 ydata fusion in theory We can also include our prior knowledge of the system dynamics Kalman Filter optimal for linear systems with Gaussian noise developed in the 6s flew on the Apollo missions Etended Kalman Filter local linearisation of nonlinear systems with Gaussian noise Particle Filter fully nonlinear system and noise e.g. linear model ( = +.5 with bimodal measurement (aliasing, mirroring or modulo π P( t obs t obs t obs t obs t,t P( evolved, t= Realtime Data Fusion for Nuclear Fusion /5
19 ydata fusion in theory We can also include our prior knowledge of the system dynamics Kalman Filter optimal for linear systems with Gaussian noise developed in the 6s flew on the Apollo missions Etended Kalman Filter local linearisation of nonlinear systems with Gaussian noise Particle Filter fully nonlinear system and noise e.g. linear model ( = +.5 with bimodal measurement (aliasing, mirroring or modulo π P( t obs t obs t obs t obs t,t P( measured, t= Realtime Data Fusion for Nuclear Fusion /5
20 yeisting applications of data fusion in tokamaks Lots of potential because one parameter can be measured in different ways different parameters are linked by common geometry Offline Integrated Data Analysis [Fischer, this conference] Minerva [Svensson 8 PPCF, von Nessi PoP] L/Hmode identification [e.g. Giannone PPCF] Z eff [Verdoolaege IEEE] Realtime [Fischer F Sci Tech, ] RAPTOR [Felici, this conference] disruption prediction [several contributors, this conference] MHD mode number tracking [e.g. Galperti PPCF, Alves 3 PPCF] Realtime Data Fusion for Nuclear Fusion 5/5
21 yntm Stabilisation NTMs decrease confinement and can cause disruptions stabilise or prevent NTMs with localised heating and current drive ECCD Realtime Data Fusion for Nuclear Fusion 6/5
22 yntm Stabilisation NTMs decrease confinement and can cause disruptions stabilise or prevent NTMs with localised heating and current drive ECCD requires accurate targetting: accuracy < w island in AUG, accuracy < cm in ITER, accuracy < 3 cm [Sauter PPCF, La Haye 8 NF] more power required if ECCD deposition is less accurate growth rate dw/dt [ms ]. w marg ECCD off ECCD on w sat. 6 w [cm] NTM w island Realtime Data Fusion for Nuclear Fusion 6/5
23 yntm Stabilisation NTMs decrease confinement and can cause disruptions stabilise or prevent NTMs with localised heating and current drive ECCD requires accurate targetting: accuracy < w island in AUG, accuracy < cm in ITER, accuracy < 3 cm [Sauter PPCF, La Haye 8 NF] more power required if ECCD deposition is less accurate in terms of mirror angle <.. ITER mirrors specified to ±.5 requires accurate localisation growth rate dw/dt [ms ]. w marg ECCD off ECCD on w sat. 6 w [cm] NTM w island Realtime Data Fusion for Nuclear Fusion 6/5
24 yntm Localisation  Method : Equilibrium NTMs only occur at flu surfaces with rational q location of q surfaces can be obtained from equilibrium equilibrium is a prerequisite for EC raytracing calculations + always available, even before NTM appears difficult to diagnose to q profile large uncertainty of flu surface location Realtime Data Fusion for Nuclear Fusion 7/5
25 ASDEX Upgrade yntm Localisation  Method : Te Fluctuations NTM detected as B by Mirnov coils and T e by ECE inversion radius can be associated with an ECE channel (change of correlation phase by π [Reich et al. F Sci Tech. ] ECE channel location is known at the midplane + + low uncertainty in ECE channel identification uncertainty improves for big NTMs some false positives midplane location must be transposed to deposition location reintroduces uncertainty only useful once island eists Realtime Data Fusion for Nuclear Fusion ECRH ECE 8/5
26 yntm Localisation  Method 3: Amplitude ASDEX Upgrade decreases when EC is well aligned + no spatial resolution limitation ρq=.5.6 ρeccd.5 ρtarget. 6 NTM width [au] NTM amplitude is B island width ρ [no units] #967 ep sim time [s] B is a noisy measurement search for min B is nonlinear difficult for control amplitude changes can be due to adding or removing NBI power only useful if EC approimately on target only useful once island eists [Humphreys et al. PoP. 6] Realtime Data Fusion for Nuclear Fusion 9/5
27 Equilibrium σ =. ysensor Functions P(NTM pos ρ pol.6.8 T e Fluctuations σ =. weighted by the NTM amplitude Ḃ P(NTM pos ρ pol Amplitude σ =. negative if amplitude increases weighted by + dβ dt one peak for each gyrotron which is within. ρ pol of the qsurface P(NTM pos.. ρ pol.6.8 Realtime Data Fusion for Nuclear Fusion /5
28 ydata Fusion for NTM Localisation use a gridbased filter  like a particle filter without resampling avoids sample impoverishment since NTM can occur anywhere, anytime more computation since more grid points needed for same resolution maintain likelihood estimate for each sensor separately, then add Realtime Data Fusion for Nuclear Fusion /5
29 ydata Fusion for NTM Localisation use a gridbased filter  like a particle filter without resampling avoids sample impoverishment since NTM can occur anywhere, anytime more computation since more grid points needed for same resolution maintain likelihood estimate for each sensor separately, then add instead of normalising every timestep, use a forgetting factor τ forget (mag = τ forget (ECE =. s τ forget (ampl =.7 s time [s] time [s] Realtime Data Fusion for Nuclear Fusion /5
30 ydata Fusion for NTM Localisation use a gridbased filter  like a particle filter without resampling avoids sample impoverishment since NTM can occur anywhere, anytime more computation since more grid points needed for same resolution maintain likelihood estimate for each sensor separately, then add instead of normalising every timestep, use a forgetting factor τ forget (mag = τ forget (ECE =. s τ forget (ampl =.7 s compensate the cumulative effects of a long τ forget with weights w(mag = w(ece = w(ampl = time [s] time [s] Realtime Data Fusion for Nuclear Fusion /5
31 yapply Fused Data to Feedback #357  test archived data ρ pol.8.6 mag estimate data fus estimate w [cm] ρ ρ NTM pol pol ECE estimate data fus estimate data fus estimate EC 6 time [s] 5 5 Realtime Data Fusion for Nuclear Fusion /5
32 yapply Fused Data to Feedback tracks mag estimate before NTM appears #357  test archived data ρ pol.8.6 mag estimate data fus estimate w [cm] ρ ρ NTM pol pol ECE estimate data fus estimate data fus estimate EC 6 time [s] 5 5 Realtime Data Fusion for Nuclear Fusion /5
33 yapply Fused Data to Feedback tracks mag estimate before NTM appears tracks ECE estimate when island is large and EC off #357  test archived data ρ pol ρ pol ECE estimate data fus estimate mag estimate data fus estimate w [cm] ρ NTM pol data fus estimate EC 6 time [s] 5 5 Realtime Data Fusion for Nuclear Fusion /5
34 yapply Fused Data to Feedback tracks mag estimate before NTM appears tracks ECE estimate when island is large and EC off ampl changes show if NTM is at the EC deposition location  or not! #357  test archived data ρ pol ρ pol ECE estimate data fus estimate mag estimate data fus estimate w [cm] ρ NTM pol data fus estimate EC 6 time [s] 5 5 Realtime Data Fusion for Nuclear Fusion /5
35 yapply Fused Data to Feedback tracks mag estimate before NTM appears tracks ECE estimate when island is large and EC off ampl changes show if NTM is at the EC deposition location  or not! result is better than any of the diagnostics by themselves #357  test archived data ρ pol ρ pol ρ pol w NTM [cm] ECE estimate data fus estimate mag estimate data fus estimate data fus estimate EC 6 time [s] 5 5 Realtime Data Fusion for Nuclear Fusion /5
36 yapply Fused Data to Feedback tracks mag estimate before NTM appears tracks ECE estimate when island is large and EC off ampl changes show if NTM is at the EC deposition location  or not! result is better than any of the diagnostics by themselves in FB, sweep target around ma likelihood, down to 9% ρ pol ρ pol ρ pol w NTM [cm] #357  FB simulation NTM mag estimate data fus estimate NTM ECE estimate data fus estimate NTM data fus estimate target EC.5 3 time [s] Realtime Data Fusion for Nuclear Fusion /5
37 yapply Fused Data to Feedback tracks mag estimate before NTM appears tracks ECE estimate when island is large and EC off ampl changes show if NTM is at the EC deposition location  or not! result is better than any of the diagnostics by themselves in FB, sweep target around ma likelihood, down to 9% realtime C ++ version ready to run ρ pol ρ pol ρ pol w NTM [cm] #357  FB simulation NTM mag estimate data fus estimate NTM ECE estimate data fus estimate NTM data fus estimate target EC.5 3 time [s] Realtime Data Fusion for Nuclear Fusion /5
38 #365 s Equilibria: EQI( Diagnostics: ECE Radiometer ECE Radiometer (6 yalternative Concepts for Position Control magnetic diagnostics susceptible to drift in long pulse eperiments radiation damage in reactors need alternatives for DEMO the more options the better [Santos NF ] Reflectometry measures n e profiles and can estimate gaps ECE can estimate the separatri position where T e ev take care with shinethrough Soft XRay can estimate position of ma radiation as proy for z centre Trad [ev] 3 R aus.6.8. R [m] [SXR images courtesy of M. Weiland, to be published] Realtime Data Fusion for Nuclear Fusion 3/5
39 ydata Fusion for Position Control P(R P(R P(R P(R P(R AUG mag refl total ECE model R [m] Realtime Data Fusion for Nuclear Fusion /5
40 ydata Fusion for Position Control P(R P(R P(R P(R P(R AUG mag refl total ECE model R [m] Realtime Data Fusion for Nuclear Fusion /5
41 ydata Fusion for Position Control P(R AUG mag P(R DEMO mag (slow P(R refl P(R refl P(R ECE P(R ECE P(R model P(R model P(R total P(R total R [m] R [m] Realtime Data Fusion for Nuclear Fusion /5
42 yconclusions Data fusion in nuclear fusion mature methods eist potential to eploit these techniques in fusion eperiments  more than we have so far will be vital for diagnostics in a reactor Two eamples shown NTM localisation combining equilibrium, ECE and amplitude performs well in FB simulations ready to test in eperiment plasma position estimation concept involving many diagnostics Realtime Data Fusion for Nuclear Fusion 5/5
Neoclassical Tearing Modes
Neoclassical Tearing Modes O. Sauter 1, H. Zohm 2 1 CRPPEPFL, Lausanne, Switzerland 2 MaxPlanckInstitut für Plasmaphysik, Garching, Germany Physics of ITER DPG Advanced Physics School 2226 Sept, 2014,
More informationIntroduction to Integrated Data Analysis
7th Workshop on Fusion Data Processing, Validation and Analysis Introduction to Integrated Data Analysis R. Fischer MaxPlanckInstitut für Plasmaphysik, Garching EURATOM Association Frascati, Mar 2628,
More informationFirst plasma operation of Wendelstein 7X
First plasma operation of Wendelstein 7X R. C. Wolf on behalf of the W7X Team *) robert.wolf@ipp.mpg.de *) see author list Bosch et al. Nucl. Fusion 53 (2013) 126001 The optimized stellarator Wendelstein
More informationExperiments on Actuator Management and Integrated Control at ASDEX Upgrade
EUROFUSION WPMST1CP(16) 15539 CJ Rapson et al. Experiments on Actuator Management and Integrated Control at ASDEX Upgrade Preprint of Paper to be submitted for publication in Proceedings of 29th Symposium
More informationIntegrated equilibrium reconstruction and MHD stability analysis of tokamak plasmas in the EUIM platform
EUROFUSION WPCDPR(16) 15379 R Coelho et al. Integrated equilibrium reconstruction and MHD stability analysis of tokamak plasmas in the EUIM platform Preprint of Paper to be submitted for publication
More informationThe performance of improved Hmodes at ASDEX Upgrade and projection to ITER
EX/11 The performance of improved Hmodes at ASDEX Upgrade and projection to George Sips MPI für Plasmaphysik, EURATOMAssociation, D85748, Germany G. Tardini 1, C. Forest 2, O. Gruber 1, P. Mc Carthy
More informationEffects of stellarator transform on sawtooth oscillations in CTH. Jeffrey Herfindal
Effects of stellarator transform on sawtooth oscillations in CTH Jeffrey Herfindal D.A. Ennis, J.D. Hanson, G.J. Hartwell, E.C. Howell, C.A. Johnson, S.F. Knowlton, X. Ma, D.A. Maurer, M.D. Pandya, N.A.
More informationDIAGNOSTICS FOR ADVANCED TOKAMAK RESEARCH
DIAGNOSTICS FOR ADVANCED TOKAMAK RESEARCH by K.H. Burrell Presented at High Temperature Plasma Diagnostics 2 Conference Tucson, Arizona June 19 22, 2 134 /KHB/wj ROLE OF DIAGNOSTICS IN ADVANCED TOKAMAK
More informationTurbulence and transport reduction with innovative plasma shapes in TCV  correlation ECE measurements and gyrokinetic simulations
Turbulence and transport reduction with innovative plasma shapes in TCV  correlation ECE measurements and gyrokinetic simulations A. Pochelon, and the TCV team 1 Ecole Polytechnique de Lausanne (EPFL)
More informationDutch Nuclear Fusion program
Dutch Nuclear Fusion program Marco de Baar DIFFER is part of and A physicist s dream??? International landscape: Roadmap (1) Eurofusion consortium & Nuclear Fusion Roadmap ITER key facility in the roadmap.
More informationPower Balance Analysis of Wendelstein 7X Plasmas Using Profile Diagnostics
EUROFUSION WPS1PR(16) 16280 S Bozhenkov et al. Power Balance Analysis of Wendelstein 7X Plasmas Using Profile Diagnostics Preprint of Paper to be submitted for publication in 43rd European Physical Society
More informationControl of Sawtooth Oscillation Dynamics using Externally Applied Stellarator Transform. Jeffrey Herfindal
Control of Sawtooth Oscillation Dynamics using Externally Applied Stellarator Transform Jeffrey Herfindal D.A. Ennis, J.D. Hanson, G.J. Hartwell, S.F. Knowlton, X. Ma, D.A. Maurer, M.D. Pandya, N.A. Roberds,
More informationITER operation. Ben Dudson. 14 th March Department of Physics, University of York, Heslington, York YO10 5DD, UK
ITER operation Ben Dudson Department of Physics, University of York, Heslington, York YO10 5DD, UK 14 th March 2014 Ben Dudson Magnetic Confinement Fusion (1 of 18) ITER Some key statistics for ITER are:
More informationand expectations for the future
39 th Annual Meeting of the FPA 2018 First operation of the Wendelstein 7X stellarator and expectations for the future HansStephan Bosch MaxPlanckInstitut für Plasmaphysik Greifswald, Germany on behalf
More informationTHE DIII D PROGRAM THREEYEAR PLAN
THE PROGRAM THREEYEAR PLAN by T.S. Taylor Presented to Program Advisory Committee Meeting January 2 21, 2 3 /TST/wj PURPOSE OF TALK Show that the program plan is appropriate to meet the goals and is wellaligned
More informationThe role of stochastization in fast MHD phenomena on ASDEX Upgrade
1 EX/P910 The role of stochastization in fast MHD phenomena on ASDEX Upgrade V. Igochine 1), O.Dumbrajs 2,3), H. Zohm 1), G. Papp 4), G. Por 4), G. Pokol 4), ASDEX Upgrade team 1) 1) MPI für Plasmaphysik,
More informationSTABILIZATION OF m=2/n=1 TEARING MODES BY ELECTRON CYCLOTRON CURRENT DRIVE IN THE DIII D TOKAMAK
GA A24738 STABILIZATION OF m=2/n=1 TEARING MODES BY ELECTRON CYCLOTRON CURRENT DRIVE IN THE DIII D TOKAMAK by T.C. LUCE, C.C. PETTY, D.A. HUMPHREYS, R.J. LA HAYE, and R. PRATER JULY 24 DISCLAIMER This
More informationInfluence of ECR Heating on NBIdriven Alfvén Eigenmodes in the TJII Stellarator
EX/P Influence of ECR Heating on NBIdriven Alfvén Eigenmodes in the TJII Stellarator Á. Cappa, F. Castejón, T. Estrada, J.M. Fontdecaba, M. Liniers and E. Ascasíbar Laboratorio Nacional de Fusión CIEMAT,
More informationImpact of Localized ECRH on NBI and ICRH Driven Alfven Eigenmodes in the ASDEX Upgrade Tokamak
Impact of Localized ECRH on NBI and ICRH Driven Alfven Eigenmodes in the ASDEX Upgrade Tokamak M. GarciaMunoz M. A. Van Zeeland, S. Sharapov, Ph. Lauber, J. Ayllon, I. Classen, G. Conway, J. Ferreira,
More informationCharacterization of neoclassical tearing modes in highperformance I mode plasmas with ICRF mode conversion flow drive on Alcator CMod
1 EX/P422 Characterization of neoclassical tearing modes in highperformance I mode plasmas with ICRF mode conversion flow drive on Alcator CMod Y. Lin, R.S. Granetz, A.E. Hubbard, M.L. Reinke, J.E.
More informationUsing Bayesian Analysis to Study Tokamak Plasma Equilibrium
Using Bayesian Analysis to Study Tokamak Plasma Equilibrium Greg T. von Nessi (joint work with Matthew Hole, Jakob Svensson, Lynton Appel, Boyd Blackwell, John Howard, David Pretty and Jason Bertram) Outline
More informationActive Control of Alfvén Eigenmodes in the ASDEX Upgrade tokamak
Active Control of Alfvén Eigenmodes in the ASDEX Upgrade tokamak M. GarciaMunoz, S. E. Sharapov, J. Ayllon, B. Bobkov, L. Chen, R. Coelho, M. Dunne, J. Ferreira, A. Figueiredo, M. Fitzgerald, J. GaldonQuiroga,
More informationRecent Developments and Applications of Bayesian Data Analysis in Fusion Science: Integrated Data Analysis
MPI for Extraterrestrial Physics: Bayes Forum Recent Developments and Applications of Bayesian Data Analysis in Fusion Science: Integrated Data Analysis R. Fischer, L. Barrera, A. Burckhart, M.G. Dunne,
More informationMHD Stabilization Analysis in Tokamak with Helical Field
USJapan Workshop on MHD Control, Magnetic Islands and Rotation the University of Texas, Austin, Texas, USA AT&T Executive Education & Conference Center NOVEMBER 35, 8 MHD Stabilization Analysis in Tokamak
More informationAdvanced Tokamak Research in JT60U and JT60SA
I07 Advanced Tokamak Research in and JT60SA A. Isayama for the JT60 team 18th International Toki Conference (ITC18) December 912, 2008 Ceratopia Toki, Toki Gifu JAPAN Contents Advanced tokamak development
More informationElectron temperature barriers in the RFXmod experiment
Electron temperature barriers in the RFXmod experiment A. Scaggion Consorzio RFX, Padova, Italy Tuesday 5 th October 2010 ADVANCED PHYSICS LESSONS 27/09/2010 07/10/2010 IPP GARCHING JOINT EUROPEAN RESEARCH
More informationA sodium (Na) beam edge diagnostic
P239 A sodium (Na) beam edge diagnostic E.Wolfrum a*, J. Schweinzer a, D. Bridi b, K. Igenbergs b, J. Kamleitner b, F. Aumayr b and the ASDEX Upgrade Team a a Max Planck Institut für Plasmaphysik, EURATOM
More informationPerformance limits. Ben Dudson. 24 th February Department of Physics, University of York, Heslington, York YO10 5DD, UK
Performance limits Ben Dudson Department of Physics, University of York, Heslington, York YO10 5DD, UK 24 th February 2014 Ben Dudson Magnetic Confinement Fusion (1 of 24) Previously... In the last few
More informationFirst Observation of ELM Suppression by Magnetic Perturbations in ASDEX Upgrade and Comparison to DIIID MatchedShape Plasmas
1 PD/11 First Observation of ELM Suppression by Magnetic Perturbations in ASDEX Upgrade and Comparison to DIIID MatchedShape Plasmas R. Nazikian 1, W. Suttrop 2, A. Kirk 3, M. Cavedon 2, T.E. Evans
More informationEffect of rotational transform and magnetic shear on confinement of stellarators
Effect of rotational transform and magnetic shear on confinement of stellarators E. Ascasíbar(1), D. LópezBruna(1), F. Castejón(1), V.I. Vargas(1), V. Tribaldos(1), H. Maassberg(2), C.D. Beidler(2) R.
More informationModelling and Analysis of the JET EP2 Neutral Beam Full Energy Ion Dump Curved End Plate
Contract for the Operation of the JET Facilities CoFunded by Euratom NJOCCP(16) 15392 A Shepherd et al. Modelling and Analysis of the JET EP2 Neutral Beam Full Energy Ion Dump Curved End Plate Preprint
More informationMultiMachine Experiments to Study the Parametric Dependences of Momentum Transport
EUROFUSION WPJET1PR(16) 15411 TJJ Tala et al. MultiMachine Experiments to Study the Parametric Dependences of Momentum Transport Preprint of Paper to be submitted for publication in 43rd European Physical
More informationResistive Wall Mode Observation and Control in ITERRelevant Plasmas
Resistive Wall Mode Observation and Control in ITERRelevant Plasmas J. P. Levesque April 12, 2011 1 Outline Basic Resistive Wall Mode (RWM) model RWM stability, neglecting kinetic effects Sufficient for
More informationMagnetic Flux Surface Measurements at Wendelstein 7X
EUROFUSION WPS1PR(16) 15578 M. Otte et al. Magnetic Flux Surface Measurements at Wendelstein 7X Preprint of Paper to be submitted for publication in 43rd European Physical Society Conference on Plasma
More informationFirst Experiments Testing the Working Hypothesis in HSX:
First Experiments Testing the Working Hypothesis in HSX: Does minimizing neoclassical transport also reduce anomalous transport? J. N. Talmadge HSX Plasma Laboratory University of WisconsinMadison Special
More informationINTERNATIONAL ATOMIC ENERGY AGENCY 21 st IAEA Fusion Energy Conference Chengdu, China, October 2006
IAEA INTERNATIONAL ATOMIC ENERGY AGENCY st IAEA Fusion Energy Conference Chengdu, China, 6  October 6 IAEACN9/EX/ THE PERFORMANCE OF IMPROVED HMODES AT ASDEX UPGRADE AND PROJECTION TO A.C.C. SIPS,
More informationThe emissivity of W coatings deposited on carbon materials for fusion applications
EUROFUSION WPJET2CP(16) 15583 C Ruset et al. The emissivity of W coatings deposited on carbon materials for fusion applications Preprint of Paper to be submitted for publication in Proceedings of 29th
More informationDevelopment in DIII D Tokamak Hybrid Operation Scenarios
Development in Tokamak Hybrid Operation Scenarios by R.J. Jayakumar in collaboration with M.R. Wade, T.C. Luce, P.A. Politzer, A.W. Hyatt, J.R. Ferron, C.M. Greenfield, E.H. Joffrin, M. Murakami, C.C.
More informationExhaust scenarios. Alberto Loarte. Plasma Operation Directorate ITER Organization. Route de Vinon sur Verdon, St Paul lez Durance, France
Exhaust scenarios Alberto Loarte Plasma Operation Directorate ITER Organization Route de Vinon sur Verdon, 13067 St Paul lez Durance, France Acknowledgements: Members of ITER Organization (especially R.
More informationObservation of modes at frequencies above the Alfvén frequency in JET
Observation of modes at frequencies above the Alfvén frequency in JET F. Nabais 1, D. Borba 1, R. Coelho 1, L. Fazendeiro 1, J. Ferreira 1, A. Figueiredo 1, L. Fitzgerald 2, P. Rodrigues 1, S. Sharapov
More informationSawtooth Control. J. P. Graves CRPP, EPFL, Switzerland. FOM Instituut voor Plasmafysica Rijnhuizen, Association EURATOMFOM, The Netherlands
Sawtooth Control J. P. Graves CRPP, EPFL, Switzerland B. Alper 1, I. Chapman 2, S. Coda, M. de Baar 3, L.G. Eriksson 4, R. Felton 1, D. Howell 2, T. Johnson 5, V. Kiptily 1, R. Koslowski 6, M. Lennholm
More informationTemporal Evolution of Temperature and Argon Impurity Density Profiles Observed by Xray Imaging Spectrometer Measurements at Wendelstein 7X
EUROFUSION WPS1PR(16) 15653 A. Langenberg et al. Temporal Evolution of Temperature and Argon Impurity Density Profiles Observed by Xray Imaging Spectrometer Measurements at Wendelstein 7X Preprint of
More informationIntroduction to Fusion Physics
Introduction to Fusion Physics Hartmut Zohm MaxPlanckInstitut für Plasmaphysik 85748 Garching DPG Advanced Physics School The Physics of ITER Bad Honnef, 22.09.2014 Energy from nuclear fusion Reduction
More informationHeat Flux Management via Advanced Magnetic Divertor Configurations and Divertor Detachment.
Heat Flux Management via Advanced Magnetic Divertor Configurations and Divertor Detachment E. Kolemen a, S.L. Allen b, B.D. Bray c, M.E. Fenstermacher b, D.A. Humphreys c, A.W. Hyatt c, C.J. Lasnier b,
More informationA Faster Way to Fusion
A Faster Way to Fusion 2017 Tokamak Energy Tokamak Energy Ltd Company Overview April 2018 Our Mission To deliver to mankind a cheap, safe, secure and practically limitless source of clean energy fusion
More informationCurrent density modelling in JET and JT60U identity plasma experiments. Paula Sirén
Current density modelling in JET and JT60U identity plasma experiments Paula Sirén 1/12 1/16 EuratomTEKES EuratomTekes Annual Seminar 2013 28 24 May 2013 Paula Sirén Current density modelling in JET
More informationLMode and InterELM Divertor Particle and Heat Flux Width Scaling on MAST
CCFEPR(13)33 J. R. Harrison, G. M. Fishpool and A. Kirk LMode and InterELM Divertor Particle and Heat Flux Width Scaling on MAST Enquiries about copyright and reproduction should in the first instance
More informationAlcator CMod. Double Transport Barrier Plasmas. in Alcator CMod. J.E. Rice for the CMod Group. MIT PSFC, Cambridge, MA 02139
Alcator CMod Double Transport Barrier Plasmas in Alcator CMod J.E. Rice for the CMod Group MIT PSFC, Cambridge, MA 139 IAEA Lyon, Oct. 17, Outline Double Barrier Plasma Profiles and Modeling Conditions
More informationIntroduction to the Diagnosis of Magnetically Confined Thermonuclear Plasma
Introduction to the Diagnosis of Magnetically Confined Thermonuclear Plasma Core diagnostics II: Bolometry and Soft Xrays J. Arturo Alonso Laboratorio Nacional de Fusión EURATOMCIEMAT E6 P2.10 arturo.alonso@ciemat.es
More informationEUROFUSION WPJET1PR(16) CG Albert et al.
EUROFUSION WPJET1PR(16) 15331 CG Albert et al. Hamiltonian approach for evaluation of toroidal torque from finite amplitude nonaxisymmetric perturbations of a tokamak magnetic field in resonant transport
More informationIntegrated Modelling of ITER Scenarios with ECCD
Integrated Modelling of ITER Scenarios with ECCD J.F. Artaud, V. Basiuk, J. Garcia, G. Giruzzi*, F. Imbeaux, M. Schneider Association EuratomCEA sur la Fusion, CEA/DSM/DRFC, CEA/Cadarache, 13108 St. PaullezDurance,
More informationDetermination of q Profiles in JET by Consistency of Motional Stark Effect and MHD Mode Localization
Determination of q Profiles in JET by Consistency of Motional Stark Effect and MHD Mode Localization R. De Angelis 1), F. Orsitto1), M. Baruzzo 2), P. Buratti 1), B. Alper 3), L. Barrera 4), A. Botrugno
More informationMHD limits and plasma response in high beta hybrid operations in ASDEX Upgrade
EUROFUSION WPMST1CP(16) 15178 V Igochine et al. MHD limits and plasma response in high beta hybrid operations in ASDEX Upgrade Preprint of Paper to be submitted for publication in Proceedings of 26th
More informationRole of Magnetic Configuration and Heating Power in ITB Formation in JET.
Role of Magnetic Configuration and Heating Power in ITB Formation in JET. The JET Team (presented by V. Parail 1 ) JET Joint Undertaking, Abingdon, Oxfordshire, United Kingdom 1 present address: EURATOM/UKAEA
More informationENEA for EUROfusion, via E. Fermi 45, Frascati (Rome), Italy 2. Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, , China 3
QuasiSnowflake divertor studies on EAST G. Calabrò 1, B.J. Xiao 2,3, S. L. Chen 2, Y.M. Duan 2, Y. Guo 2, J.G. Li 2, L. Liu 2, Z.P. Luo 2, L. Wang 2, J. Xu 2, B. Zhang 2, R. Albanese 4, R. Ambrosino 4,
More informationEffect of ideal kink instabilities on particle redistribution
Effect of ideal kink instabilities on particle redistribution H. E. Ferrari1,2,R. Farengo1, P. L. GarciaMartinez2, M.C. Firpo3, A. F. Lifschitz4 1 Comisión Nacional de Energía Atómica, Centro Atomico
More informationCMod Core Transport Program. Presented by Martin Greenwald CMod PAC Feb. 68, 2008 MIT Plasma Science & Fusion Center
CMod Core Transport Program Presented by Martin Greenwald CMod PAC Feb. 68, 2008 MIT Plasma Science & Fusion Center Practical Motivations for Transport Research Overall plasma behavior must be robustly
More informationActive MHD Control Needs in Helical Configurations
Active MHD Control Needs in Helical Configurations M.C. Zarnstorff 1 Presented by E. Fredrickson 1 With thanks to A. Weller 2, J. Geiger 2, A. Reiman 1, and the W7AS Team and NBIGroup. 1 Princeton Plasma
More informationThree Dimensional Effects in Tokamaks How Tokamaks Can Benefit From Stellarator Research
1 TH/P910 Three Dimensional Effects in Tokamaks How Tokamaks Can Benefit From Stellarator Research S. Günter, M. GarciaMunoz, K. Lackner, Ph. Lauber, P. Merkel, M. Sempf, E. Strumberger, D. Tekle and
More informationPerformance, Heating, and Current Drive Scenarios of ASDEX Upgrade Advanced Tokamak Discharges
Performance, Heating, and Current Drive Scenarios of ASDEX Upgrade Advanced Tokamak Discharges R. C. Wolf, J. Hobirk, G. Conway, O. Gruber, A. Gude, S. Günter, K. Kirov, B. Kurzan, M. Maraschek, P. J.
More informationImpurity Seeding in ASDEX Upgrade Tokamak Modeled by COREDIV Code
Contrib. Plasma Phys. 56, No. 68, 772 777 (2016) / DOI 10.1002/ctpp.201610008 Impurity Seeding in ASDEX Upgrade Tokamak Modeled by COREDIV Code K. Gała zka 1, I. IvanovaStanik 1, M. Bernert 2, A. Czarnecka
More informationExcitation of Alfvén eigenmodes with subalfvénic neutral beam ions in JET and DIIID plasmas
Excitation of Alfvén eigenmodes with subalfvénic neutral beam ions in JET and DIIID plasmas D. Borba 1,9, R. Nazikian 2, B. Alper 3, H.L. Berk 4, A. Boboc 3, R.V. Budny 2, K.H. Burrell 5, M. De Baar
More informationApplication of the ECRH radiation for plasma diagnostics in Wendelstein 7X
EUROFUSION WPS1CP(16) 15150 D Moseev et al. Application of the ECRH radiation for plasma diagnostics in Wendelstein 7X Preprint of Paper to be submitted for publication in Proceedings of 26th IAEA Fusion
More informationRecent Development of LHD Experiment. O.Motojima for the LHD team National Institute for Fusion Science
Recent Development of LHD Experiment O.Motojima for the LHD team National Institute for Fusion Science 4521 1 Primary goal of LHD project 1. Transport studies in sufficiently high n E T regime relevant
More information Effect of Stochastic Field and Resonant Magnetic Perturbation on Global MHD Fluctuation 
15TH WORKSHOP ON MHD STABILITY CONTROL: "USJapan Workshop on 3D Magnetic Field Effects in MHD Control" U. Wisconsin, Madison, Nov 1517, 17, 2010 LHD experiments relevant to Tokamak MHD control  Effect
More informationTHE ADVANCED TOKAMAK DIVERTOR
I Department of Engineering Physics THE ADVANCED TOKAMAK DIVERTOR S.L. Allen and the team 14th PSI QTYUIOP MA D S O N UCLAUCLA UCLA UNIVERSITY OF WISCONSIN THE ADVANCED TOKAMAK DIVERTOR S.L. Allen and
More informationSnakes and similar coherent structures in tokamaks
Snakes and similar coherent structures in tokamaks A. Y. Aydemir 1, K. C. Shaing 2, and F. W. Waelbroeck 1 1 Institute for Fusion Studies, The University of Texas at Austin, Austin, TX 78712 2 Plasma and
More informationJoint ITERIAEAICTP Advanced Workshop on Fusion and Plasma Physics October Introduction to Fusion Leading to ITER
22671 Joint ITERIAEAICTP Advanced Workshop on Fusion and Plasma Physics 314 October 2011 Introduction to Fusion Leading to ITER SNIPES Joseph Allan Directorate for Plasma Operation Plasma Operations
More informationImpact of High Field & High Confinement on LmodeEdge Negative Triangularity Tokamak (NTT) Reactor
Impact of High Field & High Confinement on LmodeEdge Negative Triangularity Tokamak (NTT) Reactor M. Kikuchi, T. Takizuka, S. Medvedev, T. Ando, D. Chen, J.X. Li, M. Austin, O. Sauter, L. Villard, A.
More informationMitigation of ELMs and Disruptions by Pellet Injection
TH/P45 Mitigation of ELMs and Disruptions by Pellet Injection K. Gál ), T. Fehér ), T. Fülöp ), P. T. Lang 3), H. M. Smith 4), ASDEX Upgrade Team 5) and JETEFDA contributors 3) ) KFKIRMKI, Association
More informationProgressing Performance Tokamak Core Physics. Marco Wischmeier MaxPlanckInstitut für Plasmaphysik Garching marco.wischmeier at ipp.mpg.
Progressing Performance Tokamak Core Physics Marco Wischmeier MaxPlanckInstitut für Plasmaphysik 85748 Garching marco.wischmeier at ipp.mpg.de Joint ICTPIAEA College on Advanced Plasma Physics, Triest,
More informationfor the French fusion programme
The ITER era : the 10 year roadmap for the French fusion programme E. Tsitrone 1 on behalf of IRFM and Tore Supra team 1 : CEA, IRFM, F13108 SaintPaullezDurance, France Association EURATOMCEA TORE
More informationPlasma response of magnetic perturbation at the edge: Comparisons between measurements and 3D MHD models
EUROFUSION WPMST1CP(16) 15057 M Willensdorfer et al. Plasma response of magnetic perturbation at the edge: Comparisons between measurements and 3D MHD models Preprint of Paper to be submitted for publication
More informationPlasma Response Control Using Advanced Feedback Techniques
Plasma Response Control Using Advanced Feedback Techniques by M. Clement 1 with J. M. Hanson 1, J. Bialek 1 and G. A. Navratil 1 1 Columbia University Presented at 59 th Annual APS Meeting Division of
More informationSUMMARY OF EXPERIMENTAL CORE TURBULENCE CHARACTERISTICS IN OH AND ECRH T10 TOKAMAK PLASMAS
SUMMARY OF EXPERIMENTAL CORE TURBULENCE CHARACTERISTICS IN OH AND ECRH T1 TOKAMAK PLASMAS V. Vershkov, L.G. Eliseev, S.A. Grashin. A.V. Melnikov, D.A. Shelukhin, S.V. Soldatov, A.O. Urazbaev and T1 team
More informationSpatiotemporal investigations on the triggering of pellet induced ELMs
Spatiotemporal investigations on the triggering of pellet induced ELMs G. Kocsis, S. Kálvin, P.T. Lang*, M. Maraschek*, J. Neuhauser* W. Schneider*, T. Szepesi and ASDEX Upgrade Team KFKIRMKI, EURATOM
More informationImpact of Neon Injection on Electron Density Peaking in JET Hybrid Plasmas
1 P/233 Impact of Neon Injection on Electron Density Peaking in JET Hybrid Plasmas D. Frigione 1, M. Romanelli 2, C. Challis 2, J. Citrin 3, L. Frassinetti 4, J. Graves 5, J. Hobirk 6, F. Koechl 2, M.
More informationNonlinear MHD Simulations of Edge Localized Modes in ASDEX Upgrade. Matthias Hölzl, Isabel Krebs, Karl Lackner, Sibylle Günter
Nonlinear MHD Simulations of Edge Localized Modes in ASDEX Upgrade Matthias Hölzl, Isabel Krebs, Karl Lackner, Sibylle Günter Matthias Hölzl Nonlinear ELM Simulations DPG Spring Meeting, Jena, 02/2013
More informationTransport and turbulence reduction with negative triangularity : Correlation ECE measurements in TCV
Transport and turbulence reduction with negative triangularity : Correlation ECE measurements in TCV A. Pochelon, M.Rancic, V.S.Udintsev 1, T.P.Goodman, E.Fable 2, B.Labit, O.Sauter, R.Behn, A.Bottino
More informationASSESSMENT AND MODELING OF INDUCTIVE AND NONINDUCTIVE SCENARIOS FOR ITER
ASSESSMENT AND MODELING OF INDUCTIVE AND NONINDUCTIVE SCENARIOS FOR ITER D. BOUCHER 1, D. MOREAU 2, G. VAYAKIS 1, I. VOITSEKHOVITCH 3, J.M. ANÉ 2, X. GARBET 2, V. GRANDGIRARD 2, X. LITAUDON 2, B. LLOYD
More informationElectron Bernstein Wave Heating in the TCV Tokamak
Electron Bernstein Wave Heating in the TCV Tokamak A. Mueck 1, Y. Camenen 1, S. Coda 1, L. Curchod 1, T.P. Goodman 1, H.P. Laqua 2, A. Pochelon 1, TCV Team 1 1 Ecole Polytechnique Fédérale de Lausanne
More informationPHYSICS OF CFETR. Baonian Wan for CFETR physics group Institute of Plasma Physcis, Chinese Academy of Sciences, Hefei, China.
PHYSICS OF CFETR Baonian Wan for CFETR physics group Institute of Plasma Physcis, Chinese Academy of Sciences, Hefei, China Dec 4, 2013 Mission of CFETR Complementary with ITER Demonstration of fusion
More informationDiagnostics for Burning Plasma Physics Studies: A Status Report.
Diagnostics for Burning Plasma Physics Studies: A Status Report. Kenneth M. Young Princeton Plasma Physics Laboratory UFA Workshop on Burning Plasma Science December 1113 Austin, TX Aspects of Plasma
More information2D ECE measurements of typei Edge Localized Modes at ASDEX Upgrade
2D ECE measurements of typei Edge Localized Modes at ASDEX Upgrade J E Boom 1, I G J Classen 1, P C de Vries 1, T Eich 2, E Wolfrum 2, W Suttrop 2, R P Wenninger 3, A J H Donné 1,4, B J Tobias 5, C W
More informationOn tokamak plasma rotation without the neutral beam torque
On tokamak plasma rotation without the neutral beam torque Antti Salmi (VTT) With contributions from T. Tala (VTT), C. Fenzi (CEA) and O. Asunta (Aalto) 2 Motivation: Toroidal rotation Plasma rotation
More informationMHD Induced FastIon Losses in ASDEX Upgrade
MaxPlanckInsititut für Plasmaphysik MHD Induced FastIon Losses in ASDEX Upgrade Manuel GarcíaMuñoz1 H.U. Fahrbach1, M. Bruedgam1, V. Bobkov1, A. Flaws1, M. Gobbin2, S. Günter1, P. Lauber1, M. Mantsinen1,4,
More informationNonlinear modeling of the Edge Localized Mode control by Resonant Magnetic Perturbations in ASDEX Upgrade
1 TH/P126 Nonlinear modeling of the Edge Localized Mode control by Resonant Magnetic Perturbations in ASDEX Upgrade F.Orain 1, M.Hölzl 1, E.Viezzer 1, M.Dunne 1, M.Bécoulet 2, P.Cahyna 3, G.T.A.Huijsmans
More informationCharacteristics of the Hmode H and Extrapolation to ITER
Characteristics of the Hmode H Pedestal and Extrapolation to ITER The Hmode Pedestal Study Group of the International Tokamak Physics Activity presented by T.Osborne 19th IAEA Fusion Energy Conference
More informationMHD instability driven by suprathermal electrons in TJII stellarator
MHD instability driven by suprathermal electrons in TJII stellarator K. Nagaoka 1, S. Yamamoto 2, S. Ohshima 2, E. Ascasíbar 3, R. JiménezGómez 3, C. Hidalgo 3, M.A. Pedrosa 3, M. Ochando 3, A.V. Melnikov
More informationNonlocal Models of Perturbative Transport: Numerical Results and Application to JET Experiments
1 TH/P838 Nonlocal Models of Perturbative Transport: Numerical Results and Application to JET Eperiments D.delCastilloNegrete 1, P.Mantica 2, V.Naulin 3, J.J. Rasmussen 3 and JET EFDA contributors
More informationThe nonresonant kink modes triggering strong sawtoothlike crashes. in the EAST tokamak. and L. Hu 1
The nonresonant kink modes triggering strong sawtoothlike crashes in the EAST tokamak Erzhong Li 1, V. Igochine 2, O. Dumbrajs 3, L. Xu 1, K. Chen 1, T. Shi 1, and L. Hu 1 1 Institute of Plasma Physics,
More informationEdge Zonal Flows and Blob Propagation in Alcator CMod P5.073 EPS 2011
Edge Zonal Flows and Blob Propagation in Alcator CMod S.J. Zweben 1, J.L. Terry 2, M. Agostini 3, B. Davis 1, O. Grulke 4,J. Hughes 2, B. LaBombard 2 D.A. D'Ippolito 6, R. Hager 5, J.R. Myra 6, D.A. Russell
More informationLmode radiative plasma edge studies for model validation in ASDEX Upgrade and JET
Lmode radiative plasma edge studies for model validation in ASDEX Upgrade and JET P13 L. AhoMantila a *, M. Bernert b, J.W. Coenen c, R. Fischer b, M. Lehnen c, C. Lowry d, S. Marsen e, K. McCormick
More informationBolometry. H. Kroegler Assciazione EuratomENEA sulla Fusione, Frascati (Italy)
Bolometry H. Kroegler Assciazione EuratomENEA sulla Fusione, Frascati (Italy) Revised May 28, 2002 1. Radiated power Time and space resolved measurements of the total plasma radiation can be done by means
More information0 Magnetically Confined Plasma
0 Magnetically Confined Plasma 0.1 Particle Motion in Prescribed Fields The equation of motion for species s (= e, i) is written as d v ( s m s dt = q s E + vs B). The motion in a constant magnetic field
More informationTungsten: An option for divertor and main chamber PFCs in future fusion devices
ASDEX Upgrade Tungsten: An option for divertor and main chamber PFCs in future fusion devices R. Neu, R. Dux, A. Kallenbach, C.F. Maggi, T. Pütterich, M. Balden, T. Eich, J.C. Fuchs, O. Gruber, A. Herrmann,
More informationLocalized Electron Cyclotron Current Drive in DIII D: Experiment and Theory
Localized Electron Cyclotron Current Drive in : Experiment and Theory by Y.R. LinLiu for C.C. Petty, T.C. Luce, R.W. Harvey,* L.L. Lao, P.A. Politzer, J. Lohr, M.A. Makowski, H.E. St John, A.D. Turnbull,
More informationA New Resistive Response to 3D Fields in Low Rotation Hmodes
in Low Rotation Hmodes by Richard Buttery 1 with Rob La Haye 1, Yueqiang Liu 2, Bob Pinsker 1, Jongkyu Park 3, Holger Reimerdes 4, Ted Strait 1, and the DIIID research team. 1 General Atomics, USA 2
More informationDimensionless pedestal identity plasmas on Alcator CMod C
Dimensionless pedestal identity plasmas on Alcator CMod C and JET G P Maddison 1, A E Hubbard 2, J W Hughes 2, I M Nunes 3, M N A Beurskens 1, S K Erents 1, Pasqualotto 4, E Giovannozzi 5, A Alfier 4,
More informationControlling Sawtooth Oscillations in Tokamak Plasmas
Controlling Sawtooth Oscillations in Tokamak Plasmas IT Chapman EURATOM/CCFE Fusion Association, Culham Science Centre, Abingdon, Oxfordshire OX14 3DB, United Kingdom Email: ian.chapman@ccfe.ac.uk Abstract.
More information