Third RCM of CRP on Plasma-Wall Interaction for Irradiated Tungsten and Tungsten Alloys in Fusion Devices

27-30 June 2017, IAEA Headquarters, Vienna, Austria, Meeting Room:M0E75

Tuesday 27 June 2017

09:30--09:45 Opening, Introduction of Participants, Adoption of Agenda
09:45--10:00 H. Chung: Meeting Objectives.

Session I: Experiments (Chair:H. Chung)

10:00--10:45 Yuji Hatano, Toyama University: Update on deuterium behaviors in neutron-irradiated tungsten.
10:45--11:00 Coffee break
11:00--11:45 Masashi Shimada, Idaho National Laboratory: Deuterium behavior in HFIR neutron-irradiated tungsten under US-Japan PHENIX program.
11:45--12:30 Matej Mayer, IPP Garching: Deuterium retention in tungsten damaged by mechanical work, electrons, and fast ions.
12:30--14:00 Lunch

Session II: Experiments (Chair: Y. Hatano)

14:00--14:45 Haishan Zhou, IPP-CAS, Hefei, .Progress of W-relevant plasma-material interaction studies at ASIPP.
14:45--15:30 Elodie Bernard, CEA: Impact of helium irradiation on tritium retention in tungsten.
15:30--15:50 Coffee break
15:50--16:35 Akira Hasegawa, Tohoku University: Current status of study on damage structure evolution of neutron irradiated tungsten and its alloys.
16:35--17:15 Discussion on TDS modelling code comparison exercise(M. Shimada)

Wednesday 28 June 2017

Session III: Experiments (Chair: M. Mayer)

09:00--09:45 Sabina Markelj, Josef Stefan Institute, Ljubljana: Hydrogen retention in self-damaged and He-irradiated tungsten for PFC - update on the recent results.
09:45--10:30 Mizuki Sakamoto, Plasma Research Center, University of Tsukuba. .Deuterium retention in tungsten irradiated by heavy ions.
10:30--10:50 Coffee break
10:50--11:35 Yury Gasparyan, National Research Nuclear University "MEPhI", Moscow: Quantitative characteristics of H and He interaction with radiation defects in tungsten.
11:35--12:20 Marius Wirtz, Forschungszentrum Juelich .Behavior of tungsten under thermal and plasma exposure and development of advanced tungsten materials.
12:20--13:40 Lunch

Session IV: Experiments (Chair: S. Markelj)

13:40--14:25 Boris Khripunov, Kurchatov Institute, Moscow: Deuterium plasma effect on tungsten irradiated with high-energy ions.
14:25--15:10 Prakash M. Raole and S. Deshpande, IPR, Gandhinagar: Ion-Irradiation of Tungsten: Modeling & Experiments.
15:10--15:30 Coffee break
15:30--16:15 Thomas Schwarz-Selinger, IPP Garching: TDS round robin samples: Motivation, preparation and pre-characterization.
16:15--17:30 Heun-Tae Lee, Osaka University, .Review of TDS Round-Robin Experiments.

Thursday 29 June 2017

Session V: Simulations (Chair: M. Shimada)

09:00--09:45 Sergei Dudarev, CCFE, Abingdon: Non-local real-space diffusion-driven models for microstructural evolution of irradiated tungsten.
09:45--10:30 Takuji Oda, Seoul National University: Modeling of tritium trapping effects of vacancy, grain boundaries and vacancy clusters.
10:30--10:50 Coffee break
10:50--11:35 Marie-France Barthe, CNRS
11:35--12:20 Hong-Bo Zhou, Beihang University, Beijing: Interstitial-mediated diffusion and aggregation mechanism for transmutation elements rhenium and osmium precipitation in tungsten.
12:20--13:40 Lunch

Session VI: Simulations (Chair:S. Dudarev)

13:40--14:25 Rick Kurtz, Pacific Northwest National Laboratory: Overview of SciDAC - PSI: A multiscale - multiphysics approach to simulating tungsten plasma surface interactions from the boundary plasma to the bulk substrate.
14:25--15:10 Changsong Liu, ISSP-CAS, Hefei: Across-scale self-healing mechanism for radiation damage in nano-crystal tungsten.
15:10--15:30 Coffee break
15:30--16:00 Review of CRP objectives that were addressed in the course of the CRP
16:00--17:30 Group discussions (3 groups)

Friday 30 June 2017

Session VII: Discussions

09:00--09:30 Discussion on fundamental modelling and its connection to experiments. Review of main problems that were addressed in the course of the CRP. Discussion on the current status of simulations and proposed code comparisons
09:30--10:00 Discussion on production and characterization of damage: experiments and modelling. Review of main problems that were addressed in the course of the CRP.
10:00--10:30 Discussion on hydrogen (tritium) retention in damaged tungsten: experiments and modelling. Review of main problems that were addressed in the course of the CRP.
10:30--11:00 Coffee break
11:00--11:30 Summary and Outlook of TDS Round Robin Experiments
11:30--13:00 Lunch
13:00--15:00 Future Work and Plans for the Final Report
15:00 Adjournment of Meeting