Third Research Coordination Meeting of the Irradiated Tungsten CRP

The 3rd Research Coordination Meeting of the CRP on Plasma-Wall Interaction for Irradiated Tungsten and Tungsten Alloys in Fusion Devices was held from 27 – 30 June 2017 in Room M0E75 at IAEA Headquarters in Vienna, Austria. The Scientific Secretary was Hyun-Kyung Chung (Unit Head, Atomic and Molecular Data Unit, IAEA).

Meeting Report

Irradiated Tungsten CRP: RCM3 group photo

Agenda

Tuesday, 27 June 2017

09:30 – 09:45Opening, Introduction of Participants, Adoption of Agenda
09:45 – 10:00Hyun-Kyung CHUNG: Meeting Objectives
[presentation (pdf: 862.3 KB)]
Session 1: Experiments I

Chair: Hyun-Kyung CHUNG

10:00 – 10:45HATANO Yuji: Update on deuterium behaviors in neutron-irradiated tungsten
[presentation (pdf: 1.4 MB)]
10:45 – 11:00Coffee Break
11:00 – 11:45Masashi SHIMADA: Deuterium behavior in HFIR neutron-irradiated tungsten under US-Japan PHENIX program
[presentation (pdf: 6.2 MB)]
11:45 – 12:30Matej MAYER: Deuterium retention in tungsten damaged by mechanical work, electrons, and fast ions
[presentation (pdf: 2.0 MB)]
12:30 – 14:00Lunch
Session 2: Experiments II

Chair: HATANO Yuji

14:00 – 14:45Haishan ZHOU: Progress of W-relevant plasma-material interaction studies at ASIPP
[presentation (pdf: 4.8 MB)]
14:45 – 15:30Elodie BERNARD: Impact of helium irradiation on tritium retention in tungsten
[presentation (pdf: 2.2 MB)]
15:30 – 15:50Coffee Break
15:50 – 16:35HASEGAWA Akira: Current status of study on damage structure evolution of neutron irradiated tungsten and its alloys
16:35 – 17:15Discussion on TDS modelling code comparison exercise (chair: Masashi SHIMADA)

Wednesday, 28 June 2017

Session 3: Experiments III

Chair: Matej MAYER

09:00 – 09:45Sabina MARKELJ: Hydrogen retention in self-damaged and He-irradiated tungsten for PFC - update on the recent results
[presentation (pdf: 8.1 MB)]
09:45 – 10:30SAKAMOTO Mizuki: Deuterium retention in tungsten irradiated by heavy ions
[presentation (pdf: 1.3 MB)]
10:30 – 10:50Coffee Break
10:50 – 11:35Yury GASPARYAN: Quantitative characteristics of H and He interaction with radiation defects in tungsten
[presentation (pdf: 1.8 MB)]
11:35 – 12:20Marius WIRTZ: Behavior of tungsten under thermal and plasma exposure and development of advanced tungsten materials
[presentation (pdf: 5.5 MB)]
12:20 – 13:40Lunch
Session 4: Experiments IV

Chair: Sabina MARKELJ

13:40 – 14:25Boris KHRIPUNOV: Deuterium plasma effect on tungsten irradiated with high-energy ions
[presentation (pdf: 9.2 MB)]
14:25 – 15:10Prakash M. RAOLE: Ion-Irradiation of Tungsten: Modeling & Experiments
[presentation (pdf: 23.5 MB)]
15:10 – 15:30Coffee Break
15:30 – 16:15Thomas SCHWARZ-SELINGER: TDS round robin samples: Motivation, preparation and pre-characterization
[presentation (pdf: 962.6 KB)]
16:15 – 17:30Takuji ODA: Review of TDS Round-Robin Experiments
[presentation (pdf: 2.6 MB)]

Thursday, 29 June 2017

Session 5: Simulations I

Chair: Masashi SHIMADA

09:00 – 09:45Sergei DUDAREV: Non-local real-space diffusion-driven models for microstructural evolution of irradiated tungsten
[presentation (pdf: 5.7 MB)]
09:45 – 10:30Takuji ODA: Modeling of tritium trapping effects of vacancy, grain boundaries and vacancy clusters
[presentation (pdf: 2.6 MB)]
10:30 – 10:50Coffee Break
10:50 – 11:35Marie France BARTHE: [Presentation not provided]
11:35 – 12:20Hong-Bo ZHOU: Interstitial-mediated diffusion and aggregation mechanism for transmutation elements rhenium and osmium precipitation in tungsten
[presentation (pdf: 4.5 MB)]
12:20 – 13:40Lunch
Session 6: Simulations II

Chair: Sergei DUDAREV

13:40 – 14:25Richard KURTZ: Overview of SciDAC - PSI: A multiscale - multiphysics approach to simulating tungsten plasma surface interactions from the boundary plasma to the bulk substrate
[presentation (pdf: 4.8 MB)]
14:25 – 15:10Changsong LIU: Across-scale self-healing mechanism for radiation damage in nano-crystal tungsten
[presentation (pdf: 4.0 MB)]
15:10 – 15:30Coffee Break
15:30 – 16:00Review of CRP objectives that were addressed in the course of the project (all participants)
16:00 – 17:30Group discussions (3 groups)

Friday, 30 June 2017

Session 7: Discussions
09:00 – 09:30Discussion 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
[presentation (pdf: 997.2 KB)]
09:30 – 10:00Discussion on production and characterization of damage: experiments and modelling. Review of main problems that were addressed in the course of the CRP
[presentation (pdf: 123.8 KB)]
10:00 – 10:30Discussion on hydrogen (tritium) retention in damaged tungsten: experiments and modelling. Review of main problems that were addressed in the course of the CRP
[presentation (pdf: 55.5 KB)]
10:30 – 11:00Coffee Break
11:00 – 11:30Summary and Outlook of TDS Round Robin Experiments
[presentation (pdf: 177.7 KB)]
11:30 – 13:00Lunch
13:00 – 15:00Future Work and Plans for the Final Report; Adjournment of Meeting