Preparatory Consultancy Meeting for the Injected Impurities CRP

Meeting Report

This meeting, which was held at IAEA Headquarters in Vienna from 7 – 8 June 2022, confirmed the scope of the AMD Unit's Coordinated Research Project (CRP) on Atomic Data for Injected Impurities in Fusion Plasmas and identified potential participants and practical ways for the dissemination and curation of data resulting from the project.

Specific issues addressed were:

  • What data are needed for modelling the atomic and molecular physics of injected impurities?

  • Are impurities both for power mitigation and for plasma diagnostics in scope?

  • Which species should be in scope: certainly, N and Ne (maybe also Ar?) for power control in the divertor area; Li, B and BN for edge plasma regions; others?

  • Which processes are of greatest importance (collisions with H/D/T/He/e-, radiative line strengths), and which energy ranges (1 – 100 eV up to several keV for ELMs)?

  • What is the importance of molecules to the CRP, e.g. in the formation of NHx isotopologues in the sub-divertor region?

  • How are data incorporated into models like SOLPS-ITER and how can integration of new data be facilitated?

  • Which database services does the community use, need and want?

  • Is the interaction of impurity species and/or their derivatives with reactor component surfaces in scope, such as formation and sticking of NHx; vapour formation and interaction with plasma species; etc ?

  • How much experimental data is available, in what form, and can it (how can it) be stored and curated for future use or analysis?

Agenda

Tuesday, 7 June 2022

15:00 – 15:15Christian HILL (IAEA)
Meeting opening; background and purposes
Session 1: Participant Presentations

Chair: Christian HILL

15:15 – 15:30NAKANO Tomohide (National Institutes for Quantum and Radiological Science and Technology (QST), Japan)
A+M data needs for injected impurities in fusion research
[presentation (pdf: 1.5 MB)]
15:30 – 15:45ASHIKAWA Naoko (National Institute for Fusion Science, Japan)
Injected impurity data needs at NIFS
[presentation (pdf: 3.4 MB)]
15:45 – 16:00David TSKHAKAYA (Institute of Plasma Physics of the Czech Academy of Sciences, Czechia)
Needs for impurity collision data for kinetic modelling of the tokamak plasma edge
16:00 – 16:15Ralph DUX (Max Planck Institute for Plasma Physics, Garching, Germany)
Atomic data needed for analysis of plasmas with injected impurities
[presentation (pdf: 1.5 MB)]
16:15 – 16:30Xavier BONNIN (ITER, France)
IAEA CRP on atomic and molecular data for injected impurities
16:30 – 16:45Mark ZAMMIT (Los Alamos National Laboratory, United States of America)
LANL capabilities for modelling impurities in fusion plasmas
With Christopher J. FONTES and James COLGAN.

Wednesday, 8 June 2022

Session 2: Participant Presentations

Chair: Christian HILL

15:00 – 15:15Jacob SCHWARTZ (Princeton Plasma Physics Laboratory, United States of America)
Needs for Li reaction data, especially for Li-wall or Li-divertor concepts
With Rob GOLDSTON.
15:15 – 15:30Yuri RALCHENKO (National Institute of Standards and Technology, United States of America)
Radiative data for injected impurities: NIST ASD
15:30 – 16:15Discussion: CRP scope, species of interest, data priorities; potential code comparison and benchmarking activities
16:15 – 16:45Discussion: data curation and dissemination; facilitation of the integration of data into modelling codes.
16:45 – 17:15Discussion: potential CRP participants; project timetable and roadmap.

Presentations

ASHIKAWA Naoko (Kyoto Fusioneering, Japan)
Injected impurity data needs at NIFS
[presentation (pdf: 3.4 MB)]

Xavier BONNIN (ITER, France)
IAEA CRP on atomic and molecular data for injected impurities

Ralph DUX (Max Planck Institute for Plasma Physics, Garching, Germany)
Atomic data needed for analysis of plasmas with injected impurities
[presentation (pdf: 1.5 MB)]

Christian HILL (IAEA)
Meeting opening; background and purposes

NAKANO Tomohide (National Institutes for Quantum and Radiological Science and Technology (QST), Japan)
A+M data needs for injected impurities in fusion research
[presentation (pdf: 1.5 MB)]

Yuri RALCHENKO (National Institute of Standards and Technology, United States of America)
Radiative data for injected impurities: NIST ASD

Jacob SCHWARTZ (Princeton Plasma Physics Laboratory, United States of America)
Needs for Li reaction data, especially for Li-wall or Li-divertor concepts
With Rob GOLDSTON.

David TSKHAKAYA (Institute of Plasma Physics of the Czech Academy of Sciences, Czechia)
Needs for impurity collision data for kinetic modelling of the tokamak plasma edge

Mark ZAMMIT (Los Alamos National Laboratory, United States of America)
LANL capabilities for modelling impurities in fusion plasmas
With Christopher J. FONTES and James COLGAN.