37th meeting of the ITPA Divertor and Scrape-Off-Layer Topical Group meeting

Name: 37th meeting of the ITPA Divertor and Scrape-Off-Layer Topical Group meeting
Start: 2026-01-26T08:30:00+01:00
End: 2026-01-29T19:00:00+01:00
Location: Zoom

26 Jan 2026, 08:30 → 29 Jan 2026, 19:00 Europe/Paris

Zoom

Description

Meeting location: IPP Garching, Germany

Website: ipp.mpg.de/37th-itpa-divsol

Objectives of the meeting

Update on the progress of TG DivSOL activities in the three main topical areas: Physics, Materials and Modeling.
Review the progress of the current joint activities and discuss status of remaining open issues and potential closure of joint activities.
Report on the recommendations and action items arising from the ITPA-CC meeting in December 2025.
Discuss and identify emerging high priority issues to be addressed for ITER and corresponding potential new joint activities for 2026/27.

Registration is open again until 19 December 2025.

Early registration is appreciated to ease meeting organisation.

Should you need an invitation letter for arranging your travel, please indicate this in the registration form and contact Karl Krieger at karl.krieger@ipp.mpg.de to ensure your request is processed promptly.

Hotel information including rates is available for registered participants in files below

Contact

tom.wauters@iter.org

Registration

ITPA DivSOL Registration form

Monday 26 January
- Day 1: Opening and logistics
  - 1
    
    Welcome
    
    Speaker: Sven Wiesen (Differ - Dutch Institute for Fundamental Energy Research (EU))
  - 2
    
    Logistics
    
    Speaker: Karl Krieger (IPP - Max-Planck-Institut fÃ¼r Plasmaphysik (EU))
  - 3
    
    Host lab talk (IPP)
    
    Speaker: Thomas Putterich (IPP - Max-Planck-Institut fÃ¼r Plasmaphysik (EU))
  - 4
    
    ITER status talk
    
    Speaker: Tom Wauters (ITER Organization (IO))
- Day 1: DSOL45
  - 5
    
    DSOL-45 intro
    
    Speaker: Tom Wauters (ITER Organization (IO))
  - 6
    
    Updates on modelling of wall conditioning discharges with the SOLPS-ITER code
    
    Speaker: Anthony Piras (KU Leuven (EU))
  - 7
    
    Results of hydrogen and deuterium ion cyclotron wall conditioning plasma characterization in the TOMAS device
    
    Speaker: Daniel Lopez
  - 8
    
    ECWC in JT-60SA
    
    Speaker: Masakatsu Fukumoto (QST)
- 10:30
  
  Coffee break
- Day 1: Discussion DSOL-45
  
  Convener: Tom Wauters (ITER Organization (IO))
- Day 1: DSOL-48
  - 9
    
    DSOL-48 intro
    
    Speaker: Dr Florian Effenberg (Princeton Plasma Physics Laboratory)
  - 10
    
    Boron distribution from powder dropping in DIII-D
    
    Speaker: Dr Florian Effenberg (Princeton Plasma Physics Laboratory)
  - 11
    
    Empirical modeling of multi-machine data
    
    Speaker: Alessandro Bortolon (PPPL)
  - 12
    
    LHD experiments
    
    Speaker: G. Motojima (NIFS)
  - 13
    
    WEST dropper experiments
    
    Speaker: Alberto Gallo (CEA)
- 12:25
  
  Lunch break
- Day 1: DSOL-49
  - 14
    
    DSOL-49 intro
    
    Speaker: Suguru Masuzaki (National Institutefor Fusion Scienc (JP))
  - 15
    
    Fuel retention characteristics in EAST long-pulse discharges under different wall conditions
    
    Speaker: Zhe Wang
  - 16
    
    Fuel retention due to boronization : latest results from WEST
    
    Speaker: Emmanuelle Tsitrone (CEA)
  - 17
    
    Results of samples analysis from AUG
    
    Speaker: Karl Krieger (IPP - Max-Planck-Institut fÃ¼r Plasmaphysik (EU))
  - 18
    
    ICWC interaction with B layers in WEST
    
    Speaker: Ewa Pawelec (Institute of Physics, University of Opole)
  - 19
    
    Erosion of B layer by D plasma and D retention studies at DIFFER
    
    Speaker: Thomas Morgan
  - 20
    
    Studies of boron layer fuel removal by plasma exposure in TOMAS and PSI-2
    
    Speaker: Anne Houben (FZJ - Forschungszentrum Julich (EU))
  - 21
    
    Boron layer erosion at the FW position in W7-X
    
    Speaker: Chandra Prakash Dhard (MPG)
  - 22
    
    Boron erosion and redeposition in deuterium plasma in PSI-2
    
    Speaker: Arkadi Kreter (FZJ - Forschungszentrum Julich (EU))
- 15:30
  
  Coffee break
- Day 1: DSOL-47
  - 23
    
    DSOL-47 intro
    
    Speaker: Volker Rohde (IPP - Max-Planck-Institut fÃ¼r Plasmaphysik (EU))
  - 24
    
    Boronisation at AUG: sample analyses and QMB enhancements
    
    Speaker: Sehoon An (MPG)
  - 25
    
    Boronisation at WEST: analysis of samples
    
    Speaker: Alberto Gallo (CEA)
  - 26
    
    A comparative study of boronization assisted by ICWC and GDC in EAST
    
    Speaker: Dr Yanhong Guan
  - 27
    
    Boronisation at LHD: analysis of samples
    
    Speaker: Suguru Masuzaki (National Institutefor Fusion Scienc (JP))
  - 28
    
    Boronisation at DIII-D
    
    Speaker: Igor Bykov (General Atomics)
- Day 1: Discussion DSOL-47/48/49
  
  Conveners: Dr Florian Effenberg (Princeton Plasma Physics Laboratory), Suguru Masuzaki (National Institutefor Fusion Scienc (JP)), Volker Rohde (IPP - Max-Planck-Institut fÃ¼r Plasmaphysik (EU))
Tuesday 27 January
- Day 2: DSOL-41
  - 29
    
    DSOL-41 Intro
    
    Speakers: Adam McLean (LLNL), Sven Wiesen (Differ - Dutch Institute for Fundamental Energy Research (EU))
  - 30
    
    XPR turbulence simulations with GRILLIX
    
    Speaker: Konrad Eder (MPG)
  - 31
    
    Physics insights from a large-scale 2D UEDGE simulation database for detachment control in KSTAR
    
    Speaker: M. Zhao (LLNL)
  - 32
    
    Recent progresses of radiation mantle, XPR and CRD on EAST
    
    Speakers: Kedong Li (IPP - Institute of Plasma Physics (CN)), Kai Wu (ASIPP (CN))
  - 33
    
    A predictive formula for the H-Mode separatrix density: Bridging regression and physics-based models across C-Mod, AUG and JET tokamaks
    
    Speaker: Davide Silvagni (IPP - Max-Planck-Institut fÃ¼r Plasmaphysik (EU))
  - 34
    
    Mechanism of divertor quick transition process to X-point radiators in the WEST tokamak using time-dependent simulations.
    
    Speaker: Hao YANG (Aix-Marseille University (EU))
  - 35
    
    Dynanic modeling of XPR formation in ITER
    
    Speaker: Anastasia Poletaeva
  - 36
    
    Integrated modeling of divertor detachment considering wall material evolution
    
    Speaker: Xu Guoliang (ASIPP)
- Day 2: Discussion DSOL-41
  
  Conveners: Adam McLean (LLNL), Sven Wiesen (Differ - Dutch Institute for Fundamental Energy Research (EU))
- 10:50
  
  Coffee break
- Day 2: DSOL-46
  - 37
    
    DSOL-46 intro
    
    Speaker: Rui Ding (IPP - Institute of Plasma Physics (CN))
  - 38
    
    Upgraded ERO simulation for ITER with wide grid
    
    Speaker: Christoph Baumann (FZJ)
  - 39
    
    Recent experimental results on EAST and AUG
    
    Speaker: M. Rasinski (FZJ)
  - 40
    
    Updated CXN studies on EAST
    
    Speaker: Jin Guo (ASIPP (CN))
  - 41
    
    R&D updates on PdMIS Charge-Exchange Sensors with MEMS shutters
    
    Speaker: Ryan Hood (Sandia)
- Day 2: Discussion DSOL-46
  
  Conveners: Rui Ding (IPP - Institute of Plasma Physics (CN)), Sebastijan Brezinsek (FZJ - Forschungszentrum Julich (EU))
- 12:45
  
  Lunch break
- Day 2: DSOL-43
  - 42
    
    DSOL-43 intro
    
    Speaker: Matthias Bernert (IPP - Max-Planck-Institut fÃ¼r Plasmaphysik (EU))
  - 43
    
    AUG detachment control: recent experiments and future plans
    
    Speaker: Pierre David (MPG)
  - 44
    
    Synthetic system identification using multisine perturbations with SOLPS-ITER
    
    Speaker: Stijn Kobussen (Dutch Institute for Fundamental Energy Research (EU))
  - 45
    
    Long-pulse detachment feedback control progress and the removal strategy of the wall-retained impurities on EAST
    
    Speaker: Kai Wu (ASIPP (CN))
  - 46
    
    DIII-D & KSTAR experimental overview
    
    Speaker: David Eldon (GA)
- Day 2: DSOL-43 Discussion
  
  Convener: Matthias Bernert (IPP - Max-Planck-Institut fÃ¼r Plasmaphysik (EU))
- 15:20
  
  Coffee break
- Day 2: MDC-DSOL-1
  - 47
    
    MDC-DSOL-1 intro
    
    Speaker: Karl Krieger (IPP - Max-Planck-Institut fÃ¼r Plasmaphysik (EU))
  - 48
    
    AUG plans to expose W limiter to RE impact
    
    Speaker: Karl Krieger (IPP - Max-Planck-Institut fÃ¼r Plasmaphysik (EU))
  - 49
    
    JOREK RE final loss instability modeling progress
    
    Speaker: Matthias Hoelzl (IPP - Max-Planck-Institut fÃ¼r Plasmaphysik (EU))
  - 50
    
    RE impact material damage modeling progress
    
    Speaker: Svetlana Ratynskaia
  - 51
    
    DIII-D graphite limiter impacts with REs
    
    Speaker: Eric Hollmann (UC San Diego)
- Day 2: Discussion MDC-DSOL-1
  
  Convener: Karl Krieger (IPP - Max-Planck-Institut fÃ¼r Plasmaphysik (EU))
- Day 2: CFS Session
  - 52
    
    SepOS for SPARC, current activities and recent results
    
    Speaker: Thomas Eich
  - 53
    
    Predicting detachment access via fast, analytical models for SPARC
    
    Speaker: Bart Lomanowski
  - 54
    
    The capabilities of the Boundary Digital Twin in preparation for SPARC operation: Current Status and outlook
    
    Speaker: ANDREAS REDL (Commonwealth Fusion Systems)
- Day 2: CFS Session Discussion
  
  Convener: Sven Wiesen (Differ - Dutch Institute for Fundamental Energy Research (EU))
Wednesday 28 January
- Day 3: PEP-DSOL-1
  - 55
    
    PEP-DSOL-1 intro
    
    Speaker: Michael Faitsch (IPP - Max-Planck-Institut fÃ¼r Plasmaphysik (EU))
  - 56
    
    Turbulence Simulations of the Quasi-Continuous Exhaust (QCE) regime
    
    Speaker: Kaiyu Zhang (MPG)
  - 57
    
    Increased edge particle transport near H-mode density limits on Alcator C-Mod and ASDEX Upgrade
    
    Speaker: Andrés Miller (MIT PSFC)
  - 58
    
    AUG: Density shoulder in QCE
    
    Speaker: Jessica Stobbs
  - 59
    
    Exploring the transition from continuous turbulence fluctuations to bursting ELMs in high SOL density regimes
    
    Speaker: Nami Li (Lawrence Livermore National Laboratory)
  - 60
    
    Pedestal and SOL turbulence bebaviors in H-mode detached plasma with small ELMs on the HL-2A tokamak
    
    Speaker: Ting Wu (SWIP)
  - 61
    
    Simulation of simultaneous detachment/ELM mitigation due to neon injection within Edge Plasma Coupling Simulation framework
    
    Speaker: Shifeng Mao (University of Science and Technology of China (CN))
- Day 3: PEP-DSOL-1 Discussion
  
  Convener: Michael Faitsch (IPP - Max-Planck-Institut fÃ¼r Plasmaphysik (EU))
- 10:30
  
  Coffee break
- Day 3: DSOL-51
  - 62
    
    DSOL-51 intro
    
    Speaker: Klaus Schmid (MPG)
  - 63
    
    W transport in neon-seeded ELM-free H-mode using ERO2.0/JINTRAC
    
    Speaker: Henri Kumpulainen (FZJ - Forschungszentrum Julich)
  - 64
    
    WEST for edge tungsten transport
    
    Speaker: Nicolas Fedorczak (CEA)
  - 65
    
    SOLEDGE HDG modeling of WEST limiter startup
    
    Speaker: Ivan Kudashev
  - 66
    
    W/Ni erosion and migration in JET limiter configurations
    
    Speaker: Pyry Virtanen (Aalto University (EU))
- Day 3: DSOL-51 Discussion
  
  Convener: Klaus Schmid (MPG)
- 12:15
  
  Lunch break
- Day 3: Special Session on Coatings and Alloys
  - 67
    
    Introduction
    
    Speaker: Tom Wauters (ITER Organization (IO))
  - 68
    
    ITER TFW and W coating qualification
    
    Speaker: Takeshi Hirai
  - 69
    
    Development and qualification of thin W coatings on Inconel for COMPASS-U PFC
    
    Speaker: Renaud Dejarnac (IPPCR - Institute of Plasma Physics AS CR (EU))
  - 70
    
    IPP Garching development CS coating + experience with W heavy alloy.
    
    Speaker: Rudolf Neu (MPG)
  - 71
    
    Testing of ITER TFW tiles on WEST
    
    Speaker: Marianne Richou (CEA)
- Day 3: Discussion Special Session Coatings and Alloys
  
  Convener: Tom Wauters (ITER Organization (IO))
- Day 3: DSOL-50
  - 72
    
    DSOL-50 intro
    
    Speaker: Wouter Tierens
  - 73
    
    low-density experiments in WEST
    
    Speaker: Dr laurent COLAS (CEA/IRFM)
  - 74
    
    RF-specific impurities in AUG
    
    Speaker: Volodymyr Bobkov
  - 75
    
    Modeling erosion and redeposition with GITR
    
    Speaker: Atul Kumar (ORNL - Oak Ridge National Laboratory (US))
- Day 3: Discussion DSOL-50
  
  Conveners: Wouter Tierens, tbc
- 15:50
  
  Coffee Break
- Day 3: DSOL-34
  - 76
    
    DSOL-34 intro
    
    Speaker: Nicola Vianello (CNR - Consiglio Nazionale delle Ricerche (EU))
  - 77
    
    Unified scaling for farSOL density decay in JET H-mode discharges
    
    Speaker: Christian Perez von thun (IPPLM (EU))
  - 78
    
    SOL flow mesurements and model validation
    
    Speaker: Richard Ducker (EPFL)
  - 79
    
    Enhanced Turbulent Transport and Drift Suppression in Divertors at the Detachment Onset
    
    Speaker: Rabel Rizkallah (University of California San Diego)
- Day 3: DSOL-34 Discussion
  
  Convener: Nicola Vianello (CNR - Consiglio Nazionale delle Ricerche (EU))
- Day 3: T&C-DSOL session proto-cross-TG
  - 80
    
    Towards reduced transport models in the SOL: state of the art and future perspectives
    
    Speaker: Maurizio Giacomin
  - 81
    
    A Pre-trained Variational Autoencoder-based Surrogate Model for Plasma Turbulence
    
    Speaker: M. Yang
  - 82
    
    SOLPS-NN and coupling to JINTRAC
    
    Speaker: Stefan Dasbach
  - 83
    
    From UEDGE to DivControlNN: Surrogate Modeling of SOL/Divertor States for Detachment and Transport Studies
    
    Speaker: Xueqiao Xu
- Day 3: T&C-DSOL Discussion
  
  Convener: Alessandro Bortolon (PPPL)
- 19:30
  
  Dinner
Thursday 29 January
- Day 4: DSOL-37
  - 84
    
    DSOL-37 intro
    
    Speaker: Manni Jia (CAS - Chinese Academy of Science (CN))
  - 85
    
    Divertor Heat Loads and Detachment in RMP scenarios for low-power ITER plasmas
    
    Speaker: Jonathan Van blarcum (ITER Organization (IO))
  - 86
    
    Experiments and modelling of RMP effect on ELM control and divertor flux in EAST
    
    Speaker: Manni Jia (CAS - Chinese Academy of Science (CN))
  - 87
    
    Integrated ELM and divertor flux control using RMPs in HL-3 tokamak
    
    Speaker: Dongmei FAN (Southwestern Institute of Physics, Chengdu, China)
  - 88
    
    Integrating high performance ELM suppression scenario with radiative divertor on DIII-D
    
    Speaker: Qiming Hu (Princeton Plasma Physics Laboratory)
  - 89
    
    Explaining observed potential and drift phenomena in Wendelstein 7-X with the mean-field 3D Braginskii model
    
    Speaker: Tobias Tork
- Day 4: DSOL-37 Discussion
  
  Convener: Manni Jia (CAS - Chinese Academy of Science (CN))
- 10:20
  
  Coffee break
- Day 4: DSOL-44
  - 90
    
    DSOL-44 intro
    
    Speaker: Emmanuelle Tsitrone (CEA)
  - 91
    
    Upgrade of the high-heat-flux device GLADIS for heavy duty operation - long pulses and a high number of cycles to support the development of next generation plasma facing component
    
    Speaker: Daniel Dickes
  - 92
    
    Evolution and impacts of ITER-like W/Cu PFCs with interface cracks in EAST
    
    Speaker: Dahuan Zhu (ASIPP)
  - 93
    
    New observation on crack evolution on the WEST ITER grade divertor
    
    Speaker: Alan CEA
  - 94
    
    Testing crack formation under WEST conditions on a HHF facility
    
    Speaker: Alan CEA
  - 95
    
    Feedback from operating an actively cooled W divertor in KSTAR
    
    Speaker: tbc
- Day 4: DSOL-44 Discussion
  
  Convener: Emmanuelle Tsitrone (CEA)
  - 96
    
    Discussion on opening / closing DSOLs
  - 97
    
    Closing of meeting and preliminary announcement of next meeting
- Day 4: Closing Session
  - 98
    
    Discussion on closing/opening DSOLs
    
    Speakers: Sven Wiesen (Differ - Dutch Institute for Fundamental Energy Research (EU)), Alessandro Bortolon (PPPL), Tom Wauters (ITER Organization (IO))
  - 99
    
    Meeting Closing
    
    Speaker: Karl Krieger (IPP - Max-Planck-Institut fÃ¼r Plasmaphysik (EU))
  - 13:30
    
    AUG Tours