Development of Synthetic Diagnostics for ITER
Development of Synthetic Diagnostics for the ITER WPPrIO meeting involves creating SD models in IMAS for better traceability of data, storing synthetic signals in the scenario database, and establishing criteria for the models. The goal is to build a workflow for SD Spectrometry, including various aspects like Scenario DB, Machine Description DB, equilibrium profiles, diagnostic geometry, and data analysis tools. To achieve these objectives, the project requires the integration of IMAS models, extension of the Data Dictionary, and populating the Machine Description DB with ITER diagnostics' geometry.
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Development of Synthetic Diagnostics for ITER WPPrIO meeting 30 March 2021 M. Schneider Page 1 30 March 2021 M. Schneider WPPrIO Meeting
SD models in IMAS Synthetic Diagnostic models have to be in IMAS: Unified IMAS/PCSSP platform IMAS scenario DB For input scenarios IMAS PCSSP To develop the Plasma Control Simulation Platform To develop the ITER Integrated Modelling platform Ready Machine Description DB For input geometry Being populated SD models in IMAS for a better traceability of data Synthetic signals to be stored in the scenario database. Page 2 30 March 2021 M. Schneider WPPrIO Meeting
Criteria for SD models in IMAS An IMAS model exchanges IDSs exclusively + an optional xml code parameter file: IDS2 IDS1 IDS3 Optional xml file for code parameters Single component that can be integrated into the IMAS framework. SD model !!! The model should not depend on any other external file (for now we also use of centralised CAD files, to be later copied in Machine Description database) IDS4 IDS5 ids4,ids5 = sd_model(ids1,ids2,ids3,xml_codeparam) Associated development needed: Extension of the IMAS Data Dictionary (some IDSs are too basic or not existing) Population of the Machine Description DB with the geometry of ITER diagnostics Page 3 30 March 2021 M. Schneider WPPrIO Meeting
List of available SD models We maintain a list of SD codes that contribute to the development of the ITER IM platform: https://confluence.iter.org/display/IMP/Synthetic+Diagnostics Page 4 30 March 2021 M. Schneider WPPrIO Meeting
Goal: workflow for SD Spectrometry (to be extended) Scenario DB Mach. Descr. DB equilibrium core_profiles edge_profiles diagnostic geometry (CAD, fibres...) RTM in camera_visible, spectrometer_visible Raw and 1st level* analyzed data AMNS RaySect CASPER ADAS OpenADAS spectrometer_visible (x N) camera_visible RTM Matrix CHERAB spectrum 4 (e.g. MSE) DIM spectrum 2 CXRS spectrum 1 VSRS spectrum 3 H-alpha 2nd level* analyzed data bremsstrahlung_visible impurity_monitoring ELM & H-mode monitoring bremsstrahlung_visible impurity_monitoring ELM & H-mode monitoring bremsstrahlung_visible impurity_monitoring charge_exchange bremsstrahlung_visible impurity_monitoring 1st level analyzed data is spectroscopy/optic related: calibration, continuum intensity , line intensity, line shift, line width . 2nd level analyzed data is plasma related: ion temperature, ion density, ion rotation velocity, <Zeff>, <ne>, ion influx, ELM frequency, ELM type, L-H transition time Scenario DB Page 5 30 March 2021 M. Schneider WPPrIO Meeting
Status & plans of SD development for First Plasma Measurement requirement Installed diagnostic system SD status or plan Magnetics for position, velocity, shape and MHD mode structure Magnetics System Electronics & Software Continuous External Rogowski Outer Vessel Coils Steady State Sensors Flux Loops Inner Vessel Coils Diamagnetic Sensors Will be covered by work on a prototype data analysis platform (J. Svensson) Line averaged electron density (toroidal polarimeter/ interferometer) Density Interferometer (single channel) Will be covered by A. Medvedeva s TIP model (to be made generic to work with DIP) + prototype data analysis Runaway electron detection (hard X-rays) Hard X-ray Monitor J. Sinha s model to be put into IMAS (+ prototype data analysis platform) Impurity identification and influxes (visible and near UV spectroscopy including ?? and visible bremsstrahlung), partial systems ??/Visible in EPP12 H-alpha model in IMAS, to be refined (+ J. Sinha s model to be put into IMAS) (+ prototype data analysis platform) J. Sinha s ?? model can be adapted for it VSRS model in IMAS, being refined by M. Majeed Will be covered by A. Medvedeva s work Vacuum Ultra-Violet Survey Visible Spectroscopy Reference System (partial) X-Ray Crystal Spectrometer Visible/IR TV viewing (spectro- scopically filtered), partial coverage Visible/IR Equatorial in EP16 (temporary) Visible/IR Equatorial in EPP12 (partial) Can be covered by the model that will be used by A. Medvedeva for Divertor IR thermography Torus pressure and gas composition (torus pressure gauges, RGA) Pressure Gauges (temporary) Simplified model from R. Nouilletas (but we need a more sophisticated one) Toroidal Field (TF) Mapping Temporary set of magnetic pick-ups for TF mapping Not needed; shall be straightforward to add from magnetics SDs developed in prototype data analysis platform Machine protection Tokamak Structural Monitoring System Stray ECRH detector Developed by D. Iglesias Model by A. Sirinelli can be used Page 6 30 March 2021 M. Schneider WPPrIO Meeting
Status & plans of SD development for PFPO-1 (1/2) Measurement requirement Installed diagnostic system SD status or plan Magnetics for position, velocity, shape, MHD mode structure and halo currents High Frequency Sensors Divertor Coils Divertor & Blanket Rogowski Coils Divertor Shunts Will be covered by work on a prototype data analysis platform (J. Svensson) Core profiles of ?? and ?? (TS, ECE) Core Plasma Thomson Scattering (1 laser) Electron Cyclotron Emission Toroidal Interferometer Polarimeter (TIP measures line integrated density in EQ9) Density Interferometer Polarimeter (DIP measures line integrated density in EQ8 TS model from M. de Baar and T. Bosman Will be covered by A. Medvedeva s work (ECRad, S. Denk) TIP model from A. Medvedeva already available in IMAS (+ prototype data analysis platform) Will be covered by A. Medvedeva s TIP model to be made generic to work with DIP (+ prototype data analysis platform) ?? and High-Z impurity content (XRCS and Radial Soft X-ray Cameras) X-Ray Crystal Spectrometer Radial X-Ray Camera (and/or prototype data analysis platform for both) Will be covered by A. Medvedeva s work Will be covered by D. Colette s work Impurity identification and influxes, Zeff (visible and near UV spectroscopy, including ?? and visible bremsstrahlung, He, Be, Ne, Kr, Ar, W emission) ??/Visible (partial) H-alpha model in IMAS, to be refined (+ prototype data analysis platform) Will be covered by D. Colette s work (+ prototype data analysis platform) Will be covered by A. Medvedeva s work and prototype data analysis platform VSRS model in IMAS, refined by M. Majeed Will be covered by A. Medvedeva s work DIM model in IMAS, to be refined NONE Core Imaging X-ray Spectrometer X-Ray Crystal Spectroscopy Edge Visible Spectroscopy Reference System Vacuum Ultra-Violet Edge Divertor Impurity Monitor (partial) VUV Divertor Radiated power distribution (Bolometry) Bolometry System ToFu used for bolometers Page 7 30 March 2021 M. Schneider WPPrIO Meeting
Status & plans of SD development for PFPO-1 (2/2) Measurement requirement Installed diagnostic system SD status or plan Neutrons (Micro Fission Chambers, Neutron Flux Monitors, Divertor Neutron Flux Monitors, Neutron Activation System) Microfission Chambers Neutron Flux Monitor Systems Neutron Activation System Divertor Neutron Flux Monitors Neutron Calibration (2.5 MeV) (partial) Neutron Facility Area May be covered by ITPA-EP? (next meeting May 2021) Developed by A. Kovalev ITPA-EP? Developed by A. Kovalev ITPA-EP? Needed? Divertor plasma characterization (incl. divertor duct pressure and gas composition) Langmuir Probes Pressure Gauges (cassette) Will be covered by A. Medvedeva s work Simple model from R. Nouilletas (but we need a more sophisticated one) NONE Residual Gas Analyzers (2 channels) Visible/IR TV viewing (full coverage) Visible/IR Equatorial Ports Visible/IR Upper Ports Can be covered by the model that will be used by A. Medvedeva for Divertor IR thermography + Eurofusion WPPrIO using F4E models? PWI/Heat Load characterization First Wall Samples Divertor IR Thermography Thermocouples (Divertor) Calorimetry (for testing with aux. heating) Not needed Will be covered by A. Medvedeva s work NONE Not needed (not efficient at 30 MW heating in PFPO-1) Data for gas balance measurements Pressure Gauges Simplified model from R. Nouilletas (but we need a more sophisticated one) In-vessel viewing system In-vessel viewing system Could be covered by Eurofusion WPPrIO using F4E models Page 8 30 March 2021 M. Schneider WPPrIO Meeting
Status & plans of SD development for PFPO-2 Measurement requirement Installed diagnostic system SD status or plan Core profiles of ??and ?? Core Plasma Thomson Scattering (full) Reflectometry Low Field Side Poloidal Polarimeter (10 channels) TS model from M. de Baar and T. Bosman Will be covered by V. Nikolaeva s work Will be covered by A. Medvedeva s TIP model (to be made generic to work with PoPola) IMAS model for refractometry (K. Afonin); reflectrometry will be covered by V. Nikolaeva s work Reflectometry High Field Side Core ??, impurity measurements (CXRS) Charge Exchange Resonant Spec. Core CXRS model in IMAS, to be refined (A. Shabashov) Edge profiles of ??, ?? and ?? (TS, ECE, Reflectometry, CXRS) Edge Thomson Scattering (0.85 < r/a < 1) Charge Exchange Resonant Spec. Edge Charge Exchange Resonant Spec. Pedestal Reflectometry Low Field Side Reflectometry High Field Side Will be covered by A. Medvedeva s work CXRS model in IMAS, to be refined (A. Shabashov) CXRS model in IMAS, to be refined (A. Shabashov) Will be covered by V. Nikolaeva s work Will be covered by V. Nikolaeva s work (+ refract. K. Afonin) Current profile measurements Poloidal Polarimeter (10 channels) Will be covered by A. Medvedeva s TIP model (to be made generic to work with PoPola) NONE Motional Stark Effect (baseline) Divertor plasma characterization Divertor Thomson Scattering NONE Fuel species Charge Exchange Resonant Spec. Core Neutral Particle Analyzers CXRS model in IMAS, to be refined (A. Shabashov) Can possibly be covered by ITPA-EP? PWI/ Heat Load characterization Dust Monitor Erosion Monitor Tritium Monitor (commissioning) Calorimetry NONE for all Page 9 30 March 2021 M. Schneider WPPrIO Meeting
Status & plans of SD development for FPO Measurement requirement Installed diagnostic system SD status or plan 14 MeV neutron diagnostics and neutron profile cameras Radial Neutron Camera Vertical Neutron Camera Neutron Calibration (14 MeV) Can possibly be covered by ITPA-EP experts? (to be investigated, next meeting May 2021) + maybe Eurofusion WPPrIO? Confined- and lost-? diagnostics Collective Thomson Scattering Lost Alpha Monitor NONE To be covered by Eurofusion WPPrIO (+ITPA-EP) Additional fusion product diagnostics High Resolution Neutron Spectrometer Tangential Neutron Spectrometer Vertical Gamma Ray Spectrometer Radial Gamma Ray Spectrometer ... Being developed by T. Kormilitsyn ... The rest: likely covered by ITPA-EP experts (to be checked) + maybe Eurofusion WPPrIO? PWI/ Heat Load characterization Tritium Monitor (fully operational) NONE Page 10 30 March 2021 M. Schneider WPPrIO Meeting
How WPPrIO activity could respond to ITER needs By populating the Machine Description database with the geometry of diagnostics from CAD files: Can be represented by GGD (Generalized Grid Description) Previous EU experts have left the field succession plans? By extending the AMNS functions and database: Needed for spectroscopy: visible, IR, X-ray, NB cross-sections for CX, etc. By developing synthetic diagnostic models, e.g.: Visible/IR TV viewing In-vessel viewing system Neutron diagnostics and neutron profile cameras Fast Ion Loss Detector (FILD) Gamma-ray and neutron spectrometers Page 11 30 March 2021 M. Schneider WPPrIO Meeting
