Plasma-Wall Interaction for Irradiated Tungsten and Tungsten Alloys in Fusion Devices

Second Research Coordination Meeting, Seoul National University, Seoul, Republic of Korea, 8 - 11 September 2015

Meeting Room: Global Convention Plaza
Building 38 - Room 515 (5th floor)

Shuttle service available from Hoam Guest House at 08:20 and 08:40

Direct Service to Hoam Guest House from Incheon Airport:
Please take the No. 6017 Limousine Bus. (Board at Gate 6B.)


Agenda (as realized) and Presentations

The collected presentations in 2-by-4 format (8 pages to a page, high resolution, 103 condensed pages total, 94 MB) are provided here as a single pdf file for convenient printing or viewing. The order in the file is that of the agenda.

Tuesday 8 September


09:15 - 09:45 Prof. Yong-Seok Hwang, Prof. Gon-Ho Kim, Prof. Takuji Oda of Seoul National University: Welcome address
Bas Braams, IAEA: Introduction of participants, Review of meeting objectives and meeting agenda.
09:45 - 10:30 Mizuki Sakamoto, Plasma Research Center, University of Tsukuba: Hydrogen isotope retention in tungsten irradiated by heavy ions and helium plasma.
10:30 - 11:00 Break.
11:00 - 11:45 Wolfgang Jacob, IPP Garching: The influence of radiation damage on deuterium retention in tungsten: IPP activities.
11:45 - 12:30 Guang-Nan Luo, ASIPP, Hefei: Preliminary results of commissioning of EAST full tungsten upper divertor and deuterium retention and permeation of W irradiated by heavy ions.
12:30 - 14:00 Lunch
14:00 - 14:45 Yuji Hatano, University of Toyama (presented by Heun Tae Lee, Osaka University): Present status of activities in Japan on hydrogen isotope retention studies for neutron-irradiated tungsten materials.
14:45 - 15:30 Sabina Markelj, Josef Stefan Institute, Ljubljana: Deuterium retention and isotope exchange studies in self-ion damaged tungsten exposed to neutral atoms.
15:30 - 16:00 Break
16:00 - 16:45 Yury Gasparyan, National Research Nuclear University "MEPhI", Moscow: Determination of binding energies for hydrogen with radiation defects in tungsten by means of TDS: theory and experimental data.
16:45 - 17:30 Christian Grisolia, CEA Cadarache: Study of tritium implantation in tungsten based fusion materials.
17:30 End of 1st day work
19:00 Social Dinner in the Hoam Faculty House

Wednesday 9 September


09:00 - 09:45 Changsong Liu, ISSP-CAS, Hefei: Retention and diffusion of hydrogen in tungsten: effects of temperature, alloying elements and vacancy clusters.
09:45 - 10:30 Sergei Dudarev, CCFE, Abingdon: Modelling radiation effects in tungsten: from micro- to meso-scales.
10:30 - 10:45 Break.
10:45 - 11:30 Takuji Oda, Seoul National University: Assessment and modeling of trap effects on hydrogen diffusivity in tungsten.
11:30 - 12:15 Hong-Bo Zhou, Beihang University: Modeling and simulation of helium and hydrogen behaviors in tungsten.
12:15 - 12:45 Shishir Deshpande, IPR, Gandhinagar: Computer simulation of ion-irradiation of tungsten: preliminary results.
12:45 - 14:00 Lunch
14:00 - 14:45 Charlotte Becquart, University of Lille-1, and Marie-France Barthe, CNRS (presented by Christian Grisolia): Modelling of trapping/detrapping of hydrogen isotopes in W material.
14:45 - 15:30 Brian D. Wirth, University of Tennessee (presented by Davide Curreli): Preliminary results from a multiscale approach to modelling plasma-surface interactions involving tungsten.
15:30 - 16:15 Masashi Shimada, Idaho National Laboratory: Status update on MERCOR-TMAP integration, Tritium Plasma Experiment Modification, and PHENIX program for PMI in irradiated tungsten.
16:15 End of 2nd day work
17:30 Departure from Hoam for Dinner Banquet

Thursday 10 September


09:00 - 09:45 P. M. Raole, IPR, Gandhinagar: Radiation damage of heavy ions and H irradiated tungsten - some experimental results.
09:45 - 10:30 Jochen Linke, Forschungszentrum Juelich: Radiation induced degradation of tungsten under thermal and plasma exposure and development of advanced tungsten materials.
10:30 - 11:00 Break.
11:00 - 11:45 Jean Paul Allain and Anton Neff, UIUC (presented by Davide Curreli): Plasma-material interactions under high heat flux conditions and synergistic D/He effects on low Z covered tungsten surfaces.
11:45 - 12:30 Ho Jin RYU, Nuclear and Quantum Engineering, KAIST: Tungsten-based high entropy alloys and composites for plasma facing materials.
12:30 - 13:00 Sergei Dudarev, CCFE, Abingdon: Review of DPA definition and estimates.
13:00 - 14:15 Lunch.
14:15 - 15:30 All: Review of experience with shared materials; discussion about (need for, content of) common protocol for TDS experiments.
15:30 - 16:00 Break.
16:00 - 17:30 All: Discussion about fundamental modelling; status and needs.
17:30 End of 3rd day work

Friday 11 September


09:00 - 10:45 All: Review of TDS experiments and code comparison effort; review of theory discussion.
10:45 - 11:00 Break.
11:00 - 12:45 All: Hydrogen retention and transport in damaged tungsten; status and work needs.
12:45 - 13:30 All: Any remaining business. Plans for meeting report and for next meeting.
13:30 Close of meeting.