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categoryproposal IDtopicprospective proposal titleproponent(s)interested partiescomments
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electrostatic core turbulencegawe_014, dacar_005collisionality dependenceThe ITG-TEM transition and its dependence on collisionalityWeir, Carralero?Proll, Stechow, E. Sánchez, Alcuson, García-Regaña
JProll: have done some collisionality scans and a student will do some more, for theory support
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coordinators: Weir, Stechowastechow_020collisionality dependenceTurbulence transition from ITG/TEM to resistive interchange and its comparison with LHDTanakaStechow, Thomsen, Warmer, Xanthopoulos, Weir
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gavin.weir@ipp.mpg.dejalc_006TEM-unstable configurationsObservation of the electron driven Trapped-Electron-Mode instabilityAlcusonProll, Weir, Stechow
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astechow@ipp.mpg.dejalc_010differentiation of grad-Te TEM or ETGidentification of core electron scale instabilitiesAlcuson, WeirBeurskens
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gawe_018temperature gradient control for TEM/ETG studieselectron temperature gradient control with off-axis ECRH power density scans for TEM/ETG studiesWeirT. Stange,
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astechow_009density gradient control for ITG reductionturbulence limits of NBI core density peakingStechowEstrada, García-Regaña
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astechow_010density gradient control for ITG reductionion-scale turbulence during sustained/repeated pellet fuelingStechowWeir, Bähner, Alcuson, Estrada, Proll
radially resolved density fluctuation amplitudes form PCI + Er measurements (?) for radial localisation
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kjerh_001density gradient control for ITG reductionturbulence during power-step-down-induced edge density gradients HansenStechow, Bähner, Alcuson, Estrada
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jalc_008density gradient control for ITG reductionmassive LBO injection for edge profile controlAlcuson, Wegner, BähnerStechow
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jpb_002density gradient control for ITG reductionThreshold characterisation for turbulence reduction in massive LBO injection experimentsBähner
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golof_019density gradient control for ITG reductiondensity peaking at very high gas fueling with O2 heatingFuchertStechow
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mbeur_004?temperature ratio dependence of ITGTe/Ti scans for core ITG growth rate control with ECRHBeurskens, WeirStechow, Bähner, Alcuson, García-Regaña
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mbeur_004?temperature ratio dependence of ITGTe/Ti scans for core ITG growth rate control with ECRH and ICRHBeurskens, WeirStechow, Bähner, García-Regaña
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mbeur_004?temperature ratio dependence of ITGITG growth rate control whilst varying the ratio of Te/Ti at constant Qi (ECRH deposition scan)Beurskens / ?Stechow, Weir, Bähner, Alcuson
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astechow_011temperature ratio dependence of ITGturbulence "matching" between pure ECH and pure NBI heatingStechowEstrada, Rahbarnia
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jpb_001temperature ratio dependence of ITGImpact of the temperature ratio and -gradient on core micro-instabilities BähnerBeurskens
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astechow_012configurations without "stability valley": effect on ITGion-scale turbulence characterization in low mirror configuration pellet-fueled dischargesStechowEstrada
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gawe_019
configurations without "stability valley": effect on ITG
configuration comparison high/low mirror (with matched profiles)WeirStechow, Bähner, Estrada
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jalc_007
configurations without "stability valley": effect on ITG
Characterization of turbulence in the negative mirror configurationread
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jproll_002universal instabilityinstability characterization in negative mirror configurationProllWeir
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manom_001, dacar_003 (implicitly)
role of electric field in turbulenceno explicit proposalEstrada, Weir, E. Sánchez,Wilms, Bähner
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dacar_003, dacar_004, dacar_006
turbulence survey
detailed characterization of density fluctuations and E_r in extended operational and diagnostic parameter space
Carralero/EstradaStechow, Bähner, Trimino, García-Regañacomparison to radially resolved k-spectra from PCI
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jpb_003
configuration dependence of fluctuation amplitudes
survey on observed configuration dependence of core density fluctuation amplitudesBähner
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kjerh_002ITG-TEM transition and electron pump-outECRH density pump out in W7-X and the ITG-TEM transitionHansenWeir, Stechow
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gawe_016density gradient driven TEM stabilityStability survey of the density gradient driven TEM while holding collisionalityWeirProll
vary density while attempting to maintain collisionality (and possibly Te/Ti) by changing heating power and deposition
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gawe_020
ion scale turbulence model validation, synthetic diagnostics (CECE)
Matching physics parameters and fluxes to nonlinear gyrokinetic calculations at the ion-scaleWeir, FaberG. Held
part of DOE grant: "Exploring ion heat transport during NBI heated plasmas at W7-X", validation in ECRH heated plasmas, development towards CECE synthetic diagnostics
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rjose_002turbulence in multi-species plasmasTurbulent (de)stabilization driven by non-trace impurities García-RegañaCalvo, González-Jerez, Thienpondt, Reimold ...
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rjose_003particle transport
Assessment of the relative weight of the different transport channels (i.e. neoclassical and turbulent) on particle transport
García-RegañaVelasco, Calvo, Alonso, Thienpondt, González-Jerez, Reimold, Fuchert, Jesche, Beurskens, Weir, ...
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golof_024particle transport
Particle tranport in ECRH plasmas (Steady state profiles and gas puff modulation experiments) (also discussed in the TG Profiles)
FuchertWeir, García-Regaña
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golof_026particle transportInvestigation of the particle Pinch in ECRH plasmas (using ECRH deposition scan)FuchertWeir, García-Regaña
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gawe_022, gawe_023fluid transportExploration of Ion heat pulse propagation experiments in W7-XB. GeigerWeir, Ford, Beurskens, Lazerson, Bozhenkov, Faber, G. Heldpart of DOE grant: "Exploring ion heat transport during NBI heated plasmas at W7-X"
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humtm_001
ion scale turbulence model validation, saturation and stabilization
Localization of ion-scale fluctuations in the plasma coreTrimiño Mora / Weir
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gawe_021
ion scale turbulence model validation, saturation and stabilization
Shear stabilization of ion scale driftwave turbulenceTrimiño Mora / Weir
Magnetic shear and poloidal flow shear is expected to lead to shortening in radial correlation lengths by eddy tilting
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humtm_003
ion scale turbulence model validation, saturation and stabilization
Effect of increased elongation / iota on ITG turbulence localization and instabilityTrimiño Mora / Weir
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humtm_002
ion scale turbulence model validation, saturation and stabilization
Symmetry and amplitude of ion-scale fluctuations upon field reversalTrimiño Mora / Weir
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jalc_008
ion scale turbulence model validation, impurity transport
Turbulent trajectories of impurities on trace concentrationAlcusón, Wegner
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not submitted?
ion scale turbulence model validation, impurity transport
Boron injection and its effects on turbulence / Boron impurity seeding and modification of core heat and particle transport (comparison to HSX and LHD)
Alcusón, Wegner, Weir
boron seeding to reproduce / compare against reported transport changes measured in LHD (recent Nature paper) / HSX
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1st coordination meeting for W7-X proposals on Electrostatic Core turbulence (date Feb. 24th: 16:30 CEST):Meeting minutes -->https://datashare.mpcdf.mpg.de/s/DLSsZfZEU62SuW3
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2nd coordination meeting for W7-X proposals on Electrostatic Core turbulence (date Mar. 3rd: 15:30 CEST):Meeting minutes -->https://datashare.mpcdf.mpg.de/s/DLSsZfZEU62SuW3
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3rd coordination meeting for W7-X proposals on Electrostatic Core turbulence (date Mar. 16th: 14:30 CEST):Meeting link-->https://zoom.us/j/3304093459?pwd=RU51L1Mxa3dQaXU1MGpwa2tCOXhVUT09
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Meeting scheduler -->https://terminplaner.dfn.de/bCIBAabjdVnmVPqN<---- Meeting scheduler.
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electromagnetic core turbulenceksena_003kinetic ballooning modes at high betaObservation/identification of KBM above marginal betaAleynikovaStechow, Pueschel, Mulholland, Proll, Weir, Bähner, Rahbarnia
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coordinator: Aleynikovaksena_002
kinetic ballooning modes in unfavorable configurations
Characterization of KBM-prone configurationsAleynikovaStechow, Pueschel, Mulholland, Proll, Weir
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ksenia.aleynikova@gmail.comksena_004EM stabilization of ES turbulenceReduction of electrostatic turbulence by electromagnetic effectsAleynikovaStechow, Pueschel, Mulholland, Proll, Weir
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gawe_017ion scale turbulence model validationTesting the stabilization of CTEM with increasing quasi-isodynamicity by varying the plasma betaWeirProll
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ksena_006shear influence on kinetic ballooning modesStabilisation of KBMs with increased value of shearMulholland / AleynikovaStechow, Pueschel, Proll, Weir
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zonal flowsakraemer_005zonal flow detectionZonal flow detection and characterization with "pair" of tor. separated DR and PCI; PCR and PCI
Search for zonal flows by multi diagnostic correlation
Krämer-FleckenEstrada, Weir, Haoming, Bähner, ConwayUpgraded PCR should give a better coverage of the plasma edge
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coordinator: Estradatere_003zonal flow detectionSystematic searching for zonal flows using dual V-band DR (experiments could be carried out in piggyback)EstradaSánchez, García-Regaña, Conway
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teresa.estrada@ciemat.esedis_003?
experimental validation of theoretical expectations of zonal flow properties
Characterization of zonal flows in plasma scenarios and magnetic configurations with expected different turbulence behaviour
Sánchez, Estrada, García-RegañaKrämer-Flecken, Pueschel,Haoming, Bähner, Proll, Conway
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jpb_004zonal flow generationInvestigate zonal flow generation in drift wave turbulence by comparing scenarios with varying ZF activity Bähner
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SOL turbulence (fundamental questions)
caki_012Turbulent particle transportTurbulence spreading and Turbulent Transport in island divertorKiller Terry/Ballinger/ABES Team, Shanahan, Krämer-Flecken
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coordinator: Killer, Zoletnik?not submitted?Turbulent particle transportAnalysis of diffusion coefficients for SOL turbulent transportVecsei
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carsten.killer@ipp.mpg.denot submitted?
role of islands / magnetic characteristics for turbulence
Island profiles via turbulent transport/turbulence activityVecsei/Csilag
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jter_002
role of islands / magnetic characteristics for turbulence
Edge Turbulence in the presence of magnetic islandsTerry
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mspolaor_003
role of islands / magnetic characteristics for turbulence
SOL Turbulence in W7-X without magnetic islandsM. Spolaore?
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caki_013
role of islands / magnetic characteristics for turbulence
SOL Turbulence in reversed magnetic fieldKiller/Cipciar
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mgrien_001
role of islands / magnetic characteristics for turbulence
Comparison of edge turbulence between AUG and W7-XGriener
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caki_014
role of islands / magnetic characteristics for turbulence
SOL Turbulence in low magnetic fieldKiller/Cipciar
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darc_001
role of islands / magnetic characteristics for turbulence
Turbulent heat and particle transport in the confined "core" of magnetic islandsCipciar / Killer
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not submitted?Turbulent filaments3D structure of filamentsZoletnikABES Team, Video Team, Shanahan
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jter_003turbulence during detachmentInvestigations of boundary profiles and fluctuations when transitioning into full divertor detachmentTerry
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yanj_005turbulence during detachmentedge profiles and turbulence transpot in the process from attached to detached plasmasJie Yang
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mspolaor_002electromagnetic turbulence, beta effectsEffect of increasing beta scenarios in edge electromagnetic turbulence and current carrying filaments featuresM. SpolaoreShanahanexploitation of e.m. diagnostics (MPM,divertor...)
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not submitted?beta effect on SOL turbulenceRole of plasma beta on SOL turbulence structure and its contribution to transportLiuKrämer-Flecken,Haoming, Jie Yang, Shanahan
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not submitted?beta effect on SOL turbulenceRole of kolmogorov length, Ti/Te and magentic topologies on SOL turbulenceJie YangYunfeng Liang, Liu
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yanj_004beta effect on SOL turbulencemagnetic topology effect on beta-induced Alfvén eigenmodes (BAE)Jie Yang
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hmx_001turbulence vs modesDynamics of 1-2kHz mode and its impact on SOL transport
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akraemer_007turbulence vs modesExB shear and filament dynamicsKrämer-FleckenTerry/Ballinger,Haoming, ABES Team, Shanahan, Bähner
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zoletnik_002turbulence vs modesInteraction between SOL filaments and low frequency modesZoletnikShanahan
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caki_015turbulence in operation scenariosSOL Turbulence in optimal performance plasmasKiller/Cipciar
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zoletnik_003turbulence in operation scenariosEdge/SOL turbulence modulation by ECRH powerZoletnikShanahan
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manom_001role of Er shear for SOL turbulenceCorrelation between Er at the SOL and heat fluxes on the divertorE. Maragkoudakis
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xiha_003role of Er shear for SOL turbulenceturbulence strucuture in the shear layer X HanKrämer-Flecken,Haoming, Jia Huang
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akraemer_006role of Er shear for SOL turbulenceRole of the island width on the shear and turbulence suppressionKrämer-FleckenTerry/Ballinger,Haoming, Shanahan
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caki_011active SOL perturbation by biased probesactive SOL perturbation by biased probesKiller
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miscellaneousastechow_021fast ion stabilization of ITGStechowKazhakov, ?
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astechow@ipp.mpg.degawe_015impurity dilution, isotope scaling
The ITG-TEM transition and its dependence on isotope (Scaling and separation of electrostatic turbulence through impurity dilution / Zeff)
WeirGarcía-Regaña
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not submittedturbulence during detachmentStechow?Terry/Ballinger, Stechow, Zoletnik, Krämer-Flecken
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astechow_014depencies on fueling methodcomparison of turbulent fluctuations during helium beam and gas inlet puffingStechow
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astechow_019fast ions/ICRF/phase contrast imagingICRF frequency range measurements (also for ICE detection)Edlund / Porkolab
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diagnostic-specificastechow_015phase contrast imagingCommissioning of radial resolution by spatial masking (also in reversed field)StechowBähner, Triminio
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(not coordinated)astechow_019phase contrast imagingICRF frequency range measurements (also for ICE detection)Edlund / Porkolab
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kjerh_003phase contrast imagingPCI vs GENE-3D + synthetic PCI reference discharge(s)Hansen / Bähner
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astechow_016phase contrast imagingvalidation of telescope magnification for wavenumber resolutionStechow / Hansen / Bähner
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astechow_017phase contrast imagingvalidation of telescope magnification for beam size selectionStechow / Hansen / Bähner
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astechow_018phase contrast imagingCommissioning of beam stabilization feedback systemStechow / Hansen / Bähner
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golof_020Thomson scatteringexploratory density fluc. measurement method in full poloidal planeFuchert
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Correlation ECESensitivitiy to known ne- and Te- fluctuationsWeir
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doppler backscatteringsteerable mirror system for k-resolutionWindisch?Estrada
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link to OP2.1 proposal drafts:https://docs.google.com/document/d/1BxhXvOIpYEJVacZCE8z9zILV_fhgH6FMn-s1q16v9tM/edit?usp=sharingWeir