ATOMIC, MOLECULAR AND PLASMA-SURFACE INTERACTION DATA
FOR NUCLEAR FUSION (WWW-AMDIS.IAEA.ORG)
B. J. Braams, H.-K. Chung and K. Sheikh
Atomic and Molecular Data Unit, Nuclear Data Section, IAEA, Vienna, Austria
Data Generation
Introduction
Abstract
Coordinated Research Project (CRP)
Fusion energy research requires a large amount of data for atomic, molecular and
plasma-material interaction processes. As current machines are updated and
future machines are designed new data needs for a variety of materials for a wide
range of plasma parameters arise.
The Atomic and Molecular Data Unit of the IAEA coordinates efforts to establish
databases for fusion research. Activities for database development include
Coordinated Research Projects (CRPs), Technical Meetings and collaborations.
These activities generate significant new data in support of fusion research. The
data are published in journals and in IAEA publications and are included in the
publically accessible ALADDIN numerical database. A knowledge base (wiki) on
atomic, molecular and plasma-material interaction data for fusion is being
developed based on all our activities.
Topics of new and on-going CRPs include plasma-material interaction with
beryllium surfaces, atomic and molecular data for H and He and their isotopes,
spectroscopic and collisional data for tungsten in plasma and data for light element
atoms, molecules and radicals in near-wall plasma. Technical Meetings are
organized for the network of data centres and code producers on the topics of
generation, evaluation and compilation of data for fusion.
Recently, more work is being done in the field of atomic modelling of plasmas. The
7th Non-LTE kinetics code comparison workshop (2011) is co-organized with
researchers from NIST, CEA and LLNL and results of the Non-LTE kinetics code
FLYCHK are available on our website.
Nuclear
Safety
Human
Health
Cancer
Therapy
Industrial
Applications
& Chemistry
Physics
Nuclear
Science and
Applications
Joint research on nuclear data and A+M/PMI data for fusion:
• Opportunity for comprehensive and synergistic collaboration
• Representatives from 10 to 15 institutes world-wide
• Duration 3-5 years; 3 Research Coordination Meetings (RCMs)
Data and results:
• Journal publications
• IAEA Technical Reports
• Numerical databases, data libraries and knowledge base
Physical and
Chemical
Sciences
Nuclear
Data
Technical
Cooperation
2002-2006
2004-2008
2005-2009
2007-2011
Isotope
Hydrology
Environment
Hydrology
Laboratory
Coordinated
Research Projects
Data Generation
& Exchange
Atomic &
Molecular Data
Unit
2011-2015
2012-2016
Food and
Agriculture
ALADDIN Numerical Plasma Surface Interaction Database
Past and Present CRPs (www-amdis.iaea.org/CRP)
2009-2013
Safeguards
ALADDIN Numerical Atomic and Molecular Collisional Database
Objectives:
• Generation, compilation and evaluation of data
• Establishment of databases
• Development of new techniques
2010-2014
Nuclear
Energy
Knowledge base (wiki)
IAEA Coordinated Research Projects (CRPs) stimulate research in IAEA Member
States of relevance to Agency programmes.
2008-2012
IAEA
Databases
Tritium Inventory in Fusion Reactors
Atomic and Molecular Data for Plasma Modelling
Atomic Data for Heavy Element Impurities in Fusion Reactors
Data for Surface Composition Dynamics Relevant to Erosion Processes
Characterization of Size, Composition and Origins of Dust in Fusion
Devices
Light Element Atom, Molecule and Radical Behaviour in the Divertor and
Edge Plasma Regions
Spectroscopic and Collisional Data for Tungsten from 1 eV to 20 keV
Atomic and Molecular Data for State-Resolved Modelling of Hydrogen and
Helium and Their Isotopes in Fusion Plasma
Erosion and Tritium Retention for Beryllium Plasma-Facing Materials
AMBDAS Bibliographical Database
Data Development Projects (DDP)
Data Development Projects (DDPs) are carried out by the IAEA through:
• Consultancy visits
• Service agreements
• Work undertaken directly by NDS staff
Examples:
• Sputtering and Reflection Database
• Effective rate coefficients by LANL atomic physics codes
• FLYCHK rate coefficients tables
Meetings
Code Centre Network Activities (CCN)
IFRC
Sub-Committee
Publications
Data Center
Network
Data Compilation
& Distribution
Code Center
Network
Knowledge Base
Wiki
Data Centre Network Activities (DCN)
Terms of Reference (DCN):
• Domain: atomic and molecular (A+M), particle surface interaction (PSI) or
plasma-material interaction (PMI) and bulk material properties data for fusion and
other applications.
• Established Program: collection, dissemination, critical assessment (evaluation)
and generation of A+M, PSI (PMI) data
Technical meetings: “Technical Aspects of A+M Data Processing and Exchange”
• Progress Reports on the Data Centre Activities
• Review of the long-term priorities in A+M/PSI Data needs for fusion energy
research
Average Approximation: http://www-amdis.iaea.org/AAEXCITE/
• J. Peek provided code for electron impact excitation cross sections of ions
• For any ion and configuration in real time
Heavy particle collisions: http://www-amdis.iaea.org/HEAVY/
• A. Dubois, J. P. Hansen and P. Vainstein provided code for calculation of cross
sections for excitation, ionization and charge exchange for bare nucleus on
hydrogenic target
• Registration required
Effective Ionization/Recombination Rates: http://www-amdis.iaea.org/RATES/
• Results from collisional-radiative calculations of plasmas are available, as
carried out with the Los Alamos modeling codes
• Level population distributions and radiative power rates are obtained.
GENIE General Internet Search Engine for Atomic Data
LANL: http://www-amdis.iaea.org/LANL/
• An interface to run Los Alamos atomic physics codes to calculate atomic structure
and electron impact excitation and ionization cross sections
• Complete data sets of for argon, chlorine and silicon atoms (~ 2GB)
• CRP on "Atomic Data For Heavy Element Impurities in Fusion Reactors"
FLYCHK: http://www-amdis.iaea.org/FLYCHK/
• An interface to run the collisional-radiative code FLYCHK at NIST to calculate
ionization distributions and spectral properties of elements from hydrogen to gold.
• Average charge state of elements from hydrogen to gold in a wide range of
plasma conditions of 0.5 eV ≤ Te ≤ 100 keV and 1012 cm-3 ≤ Ne ≤ 1024cm-3.
www.postersession.com