W7-X Task Agreement Summary
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Task In Progress Under U.S.-IPP Collaboration in Wendelstein 7-X
18-Aug-2017
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Task Agreement Status
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Task NumberShort TitleU.S. LeadIPP LeadNear-term plans (abridged)
See full task agreement for details
Latest Rev.
Date
Comment
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2017-7Coherence Imaging SpectroscopyD. Ennis
Auburn U.
R. König• Specification and procurement of system components
• Assembly and installation
• Scientific exploitation
NewUpdate due 31 August
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2017-6X-ray Imaging Crystal SpectrometerN. Pablant
PPPL
A. Langenberg• Installation of Ar16+/Fe24+ XICS channel
• Complete data acquisition and control system
• Complete automatic XICS analysis system
• XICS wavelength calibration (WC) design and safety review
• Place orders for WC X-Ray tube and vacuum hardware
Rev. 0
July 2017
OK.
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2017-4OP2 EndoscopesG. Wurden,
LANL
J. Fellinger• Develop and issue contracts for design, fabrication, and assembly (IPP)
•  Provide financial, material, and engineering resources (IPP)
• Provide support as needed, including , assistance in requirement definition and design, off-site vendor interactions, and supervision of assembly and IPP-in-house testing of the OP2 endoscopes. (LANL)
Rev. 1
July 2017
OK.
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2017-3PMI and Impurity SourcingO. Schmitz,
Univ. of Wisconsin
R. Burhenn, M. Jakubowski•  Laser Blow-Off (LBO) test.
• Finalize analysis of limiter surfaces and in-situ spectroscopy
• Finalize modeling and publish paper about OP1.1 erosion and impurity transport
• Support setup of scraper observation for in-situ PMI analysis
• Assess with FZJ option for tracer gas injection and innovative analysis methods
Rev. 0
Sept. 2016
Update due 31 August
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2017-2XICS ExploitationN. Pablant
PPPL
A. Langenberg•  OP1.2: Investigate impurity transport, radial electric field, transport
•  Compare radial electric field behavior between W7-X and LHD.
•  Physics improvements to STELLTRAN-pb
•  Analyze LHD XICS data and make available in LHD archives
•  With LHD, investigate CERC, Er vs. power, transport
Rev. 0
Sept. 2016
Update due 18 August
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2017-1Neutral Beams and Energetic ParticlesS. Lazerson
PPPL
R. Wolf• Develop prototype thin-film Faraday cup fast ion loss detectors.
• Numerical studies of neutral beam deposition and fast ion losses
• Participate in W7-X OP1.2 experiments characterizing the neutral beam and characterizing energetic particle losses generated by
ion-cyclotron resonance heating on W7-X.
Rev. 1
July 2017
OK.
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2016-1Remote Collaboration TechnologyH. Neilson
PPPL
A. Werner,
H.-S. Bosch
• Complete implementation of 10 Gb/sec internet bandwidth upgrade.
•  Complete implementation of remote access to the data monitor, data browser, logbook and component logs, etc.
• Maintenance and support of capabilities; user support.
•  Develop capability for cloud-based file sharing
Rev. 1
Aug. 2017
OK.
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2015-10Quantitative Edge SpectroscopyO. Schmitz, T. Barbui
U. Wisconsin
M. Krychowiak•  Implement observation for OP1.2
•  Finalize analysis of OP1.1 HeLRS measurements. Prepare analysis suite for general use
•  Benchmark HeCRM and NeCRM in high density conditions of island divertor
•  Make neon CRM ready for use (collaboration with Auburn U. and Johns-Hopkins U.
•  Prepare LANL visible camera for scraper observation, support implementation of ORNL filterscopes.
Rev. 1
Oct. 2016
Update due 31 August
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2015-9Helium ExhaustO. Schmitz, Th. Kremeyer
U. Wisconsin
U. Wenzel•  Finalize analysis of neutral pressure and Penning gauge (PG) system
•  Functional tests of new PG system
•  Obtain full calibration of new PG system at UW Madison vacuum test stand and in-situ at W7-X
•  Implement multi-reservoir, multi-species particle balance in EMC3-EIRENE
Rev. 1
Oct. 2016
Update due 31 August
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2015-8X-ray imaging crystal spectrometer (Auburn)D. Maurer
Auburn U.
A. Langenberg• Student training in XICS operation and run procedures
• Day-to–day operations (with Dr. Pablant)
• Optimization of XICS operation and Argon gas puff.
Rev. 0
Jan. 2016
Update due 31 August
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2015-7V3FIT equilibrium reconstruction and EMC3 interface developmentD. Maurer
Auburn U.
J. Geiger•  Finish V3FIT installation and initial testing
•  Begin forward diagnostic modeling studies and calibrations.
•  Extender implementation and interface development for EMC3-Eirene
•  Prepare for OP 1.2 operations and have codes running robustly
Rev. 0
Jan. 2016
Update due 31 August
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2015-6EMC3-Eirene Modeling O. Schmitz, H. Frerichs
U. Wisconsin
Y. Feng• Publish paper about EMC3-EIRENE modeling of SOL width vs. connection.
• Publish paper about synthetic reconstruction of limiter recycling fluxes.
• Continue OP1.1 analysis with focus on radiation cooling, particle balance, and PMI.
•  Assess impurity transport and radiation cooling during OP1.2
•  Improve numerical stability of EMC3-EIRENE in detached plasmas and study impact of 3-D equilibrium on detachment stability in island divertor
•  Continue support of diagnostic development (IPP, FZ Juelich and U.S. labs)
Rev. 1
Sept. 2016
Update due 31 August
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2015-5Heavy Ion Beam ProbeD. Demers,
Xantho Technologies
O. Grulke• Establish nominal direction of Btor for pending feasibility studies
• Identify and characterize W7-X discharge scenarios for study.
• Assess HIBP measurement feasibility utilizing reference scenario data
• Initiate consideration of engineering-scope and installation-logistics that must overlap with, and follow, this conceptual design effort.
Rev. 1
Nov. 2016
Update due 31 August
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2015-4Gas Puff ImagingJ. Terry,
MIT
O. Grulke• Obtain and analyze high-speed images of W7-X plasmas during OP1.2.
•  Obtain a view of a gas inlet system and to specify the port location for such a GPI view. Design re-entrant hardware for housing the optics for such a view.
•  Model emission from the gas-puff of reasonable flow rate, based upon simulations of standard W7-X boundary plasmas.
•  Propose a system design for GPI for; carry out a Conceptual Design Review (CDR) with the W7-X.
•  Revise designs based on the CDR.
Rev. 3
Aug. 2017
OK.
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2015-3Phase Contrast ImagingM. Porkolab, E. Edlund,
MIT
O. Grulke• Complete diagnostic commissioning in preparation for first experiments.
• Complete final testing and alignment prior to experiments.
• Operate the PCI diagnostic during the OP1.2a experimental campaign. Shake down possible operational difficulties and resolve unanticipated problems during plasma operation as necessary.
• Continue data analysis. Prepare conference presentations and manuscript writing as appropriate and prepare scientific proposals for the OP1.2b campaign.
• Operate the PCI diagnostic during the OP1.2b experimental campaign and continue with scientific activities described above.
Rev. 4
July 2017
OK.
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2015-2Long-Pulse PMI ScienceD. Hillis, J. Harris,
ORNL
T. S. Pedersen• Installation of 48 additional HELIOS filterscope channels for edge plasma spectroscopy.
• Physics and engineering modeling to design and analyze experiments for OP1.2 using the TDU scraper element.
• Participate in the experimental planning of the OP1.2 campaign as thrust leader for scientific exploitation of the TDU scraper element.
Rev. 3
Nov. 2016
Update due 18 August
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2015-1High Heat Flux Scraper ElementA. Lumsdaine,
ORNL
J. Boscary• Simulation of heat loads on TDU-SE in support of TDU-SE testing in OP1.2.
• Thermo-mechanical modelling in support of TUD SE testing.
• Testing of graphite foam in linear plasma facility
• Testing of graphite foam sample in W7-X
Rev. 3
Aug. 2017
OK.
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2014-6Pellet Injection ProgramL. Baylor, J. Harris,
ORNL
J. Baldzuhn•  Participate in pellet fueling experiments using the U.S. mass detectors and existing IPP injector system during OP1.2. (ORNL, IPP)
•  Develop a conceptual design for a continuous pellet fueling system (IPP, ORNL, PPPL, NIFS).
• Successful joint conceptual design review.
Rev. 5
July 2017
OK.
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2014-5Infrared ImagingG. Wurden,
LANL
T. S. Pedersen• Design, construct, install mirror endoscope system to view the upper scraper element
• Conduct FDR, Order parts and fabrication services; complete assembly and integration.
• Install upper scraper viewing system after OP1.2a.
• Continue development of documentation packages.
• Continue real-time image data analysis software development.
• Image TDU divertors and scraper element during the W7 X OP1.2 campaign.
Rev. 6
July 2017
OK.
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2014-4Magnetics and ControlS. Lazerson, D. Gates,
PPPL
T. S. Pedersen• Document post-OP1.1 work.
• Evaluate effects and ramifications of measured error field.
• Participate in e-beam mapping experiments.
• OP1.2 experiments: plasma response and divertor heat-load balancing in response to trim coils.
Rev. 5
Sept. 2016
OK.
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2014-3On-Site U.S. W7-X Program Coordination at IPPH. Neilson,
PPPL
T. Klinger
H.-S. Bosch
• Glen Wurden, on-site through Sept. 2018
• Jeffrey Harris, on-site from Sept. 2017 - Sept. 2018
• Samuel Lazerson, on-site through June 2019
• Novimir Pablant, on-site through July 2019
Rev. 3
July 2017
Needs PI review.
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Closed Tasks
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2014-2X-ray Imaging Crystal SpectrometerN. Pablant
PPPL
A. Langenberg• Detector upgrades were completed in FY-2017
Rev. 7
July 2017
Closed
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2014-1TDU Scraper ElementH. Neilson, PPPL
J. Harris, ORNL
J. Fellinger• Equipment and documentation delveries were completed in January 2017Rev. 8
July, 2017
Closed
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18 Aug 2017
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