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W7-X OP 2.1 results
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Description
This workshop aims to summarize the status of exploitation of the W7-X OP 2.1 campaig. It should also be discussed if chosen methods and approaches were appropriate for the defined physics objectives in preparation of the operation campaigns OP 2.2 & 2.3.
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- 09:00 → 09:05
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09:05
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12:00
TF-I
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09:05
ICRH Plasma Startup at low Magnetic Field 15m
O3: High Beta Scenario
D7: Plasma Startup at low BSpeaker: Jef Ongena (IPP Bereich Greifswald) -
09:20
Discussion O3: High Beta Scenarios 20m
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09:40
High Performance Scenarios 20m
O1: High Performance Scenarios
D1: Steady State High Performance
D2: Density Profile ControlSpeaker: Golo Fuchert (IPP Greifswald) -
10:00
Simulations and Projections of High Performance Scenarios 15m
O1: High Performance Scenarios
D1: Steady State High PerformanceSpeaker: Marc Beurskens (IPP Greifswald) -
10:15
coffee break 15m
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10:30
Impurity Transport and Accumulation 15m
O1: High Performance Scenarios
D3: Impurity AccumulationSpeaker: Felix Reimold (IPP-Greifswald) -
10:45
Discussion O1: High Performance Scenarios 15m
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11:00
Effective Ion Heating and Fast Ion Losses 20m
O2: Heating Scenarios
D4: Effective Ion Heating
D6: Fast Ion LossesSpeaker: Dr Samuel Lazerson (IPP Bereich Greifswald) -
11:20
Status of the ECR / NBI / ICRH Heating Systems 10m
O2: Heating Scenarios
D5: W7-X Operational MapSpeaker: Torsten Stange (IPP Bereich Greifswald) -
11:30
Discussion O2: Heating Scenarios / Fast Ions / W7-X Operational Map 20m
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09:05
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12:00
→
13:00
lunch break 1h
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13:00
→
16:00
TF-II
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13:00
Overview and O5: Reference discharge 10m
D13: Regular performance of a standardized discharge with defined diagnostic coverage throughout the campaign
Title: Session overview for TF-II: Edge Scenario Development
Speaker: Kenneth Charles Hammond (IPP Bereich Greifswald) -
13:10
O1: Integrated scenarios for long-pulse operation with PFC heat load control, efficient particle exhaust, and impurity screening 15m
D1: Demonstration of safe divertor scenarios to avoid overloaded plasma-facing components
D2: Determination of trim and/or control coil currents required to correct error fieldsSpeaker: Yu Gao (IPP Bereich Greifswald) -
13:25
O1: Integrated scenarios; O2: Detachment scenarios 20m
D4: Demonstration of long-pulse operation
D5: Demonstration of scenarios with long, stationary divertor detachment; in particular, for the high-mirror, high-iota and standard configurations
D6: Characterize the conditions under which detachment is possible
D7: Achieve rapid transition to detachmentSpeakers: Maciej Krychowiak (IPP Bereich Greifswald), Marcin Jakubowski (IPP Bereich Greifswald) -
13:45
O1: Integrated scenarios for long-pulse operation with PFC heat load control, efficient particle exhaust, and impurity screening 15m
D3: Demonstration of effective pumping, high divertor compression, and qualification of fueling actuators
Title: Overview: particle exhaust and gas balance
Speaker: Victoria Haak (IPP Bereich Greifswald) -
14:00
Discussions long pulse and detachment scenarios 20m
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14:20
coffee break 15m
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14:35
O3: Exploration of scenarios compatible with carbon-free operation and tungsten PFCs 20m
D8: Definition of the operation limits associated with plasma-facing components containing tungsten materials
D10: Determination of erosion effects due to seeding impuritiesSpeaker: Chandra-Prakash Dhard (IPP Bereich Greifswald) -
14:55
O3: Exploration of scenarios compatible with carbon-free operation and tungsten PFCs 15m
D9: Characterize the scrape-off layer retention for tungsten impurities (eroded from baffle and heat shield)
D11: Characterize enrichment/accumulation for low-Z and high-Z impuritiesTitle: Spectroscopic analysis of impurities in the edge
Speaker: Dorothea Gradic (IPP Greifswald) -
15:10
TF-III O2: Complete the edge and SOL physics basis in the magnetic configuration space of W7-X 15m
D2: Validation of edge transport codes
Title: Validation of edge modeling codes
Speaker: Victoria Winters (E5) -
15:25
O4: Development of wall conditioning procedures 15m
D12: Condition walls to enable plasmas with high density gradients necessary for high performance
-> Wall conditioning: before and during the campaignSpeaker: Lilla Vano (IPP Bereich Greifswald) -
15:40
Discussions tungsten PFCs and conditioning 20m
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13:00
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09:00
→
12:05
TF-III
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09:00
Introduction and missing topics 15mSpeakers: Carsten Killer (IPP Bereich Greifswald), Daniel Carralero (CIEMAT)
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09:15
O1: Complete the core transport and stability physics basis in the extended operational space 10m
Talk title: Status of the OP2.1/OP2.2 profile analysis
D1: Documentation of relevant plasma profiles for detailed transport
analysis and modellingSpeaker: Marc Beurskens (IPP Greifswald) -
09:25
O1: Complete the core transport and stability physics basis in the extended operational space 15m
D2: Assessment of the effects of heating and fueling actuators (profile
shaping, fast ions) and magnetic configuration on turbulent transportSpeaker: Jan-Peter Bähner (IPP Bereich Greifswald) -
09:40
O1: Complete the core transport and stability physics basis in the extended operational space 10m
D3: Documentation of core impurity profiles and perturbative
experiments for detailed impurity transport analysis and modellingSpeaker: Thilo Romba (IPP Bereich Greifswald) -
09:50
O1: Complete the core transport and stability physics basis in the extended operational space 15m
D4: Confirmation of neoclassical optimization at increased ion
temperatures.
D5: Confirmation of reduced equilibrium currents at higher betas and
different magnetic configurations.
D6: Documentation of MHD stability and limits and fast-particle driven
MHD modes within the magnetic configuration space.Speaker: Joachim Geiger (Max-Planck-Institute for Plasma Physics, Greifswald, Germany) -
10:05
O1: Complete the core transport and stability physics basis in the extended operational space 15m
D6: Documentation of MHD stability and limits and fast-particle driven
MHD modes within the magnetic configuration space.Speaker: Kian Rahbarnia (IPP Greifswald) -
10:20
Discussions core transport and stability 20m
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10:40
coffee break 20m
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11:00
O2: Complete the edge and SOL physics basis in the magnetic configuration space of W7-X 20m
D1: Providing the experimental data base for understanding transport
mechanisms in the island divertor SOL and across the LCFS,
including flows, drifts, turbulence
D4: Characterization of asymmetries of plasma conditions and radiation,
mapping of diagnostic results in 3D island divertorSpeaker: Sean Ballinger -
11:20
O2: Complete the edge and SOL physics basis in the magnetic configuration space of W7-X 15m
D1: Providing the experimental data base for understanding transport
mechanisms in the island divertor SOL and across the LCFS,
including flows, drifts, turbulence
D2: Validation of edge transport codesSpeaker: Matt Kriete (Auburn University) -
11:35
O2: Complete the edge and SOL physics basis in the magnetic configuration space of W7-X 10m
D4: Characterization of asymmetries of plasma conditions and radiation,
mapping of diagnostic results in 3D island divertorSpeaker: Gabriele Partesotti (IPP Bereich Greifswald) -
11:45
Discussions SOL physics 15m
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09:00
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12:05
→
13:00
lunch break 55m
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13:00
→
16:00
general Discussions
- 13:00
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09:00
→
12:05
