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CRP on Spectroscopic and Collisional Data for Tungsten from 1 eV to 20 keV

Period 2010-2015

Tungsten is the leading candidate for use as wall material in the regions of high heat and particle flux in a fusion reactor and in ITER. However, as an impurity in the plasma tungsten poses severe problems due to its high radiation efficiency. Its properties as a wall material and as an impurity are of great interest and are the subject of present fusion experiments and of numerical simulation. The CRP is expected to generate fundamental experimental and calculated data for radiative and collisional atomic processes involving tungsten ions interacting with plasma. The output of the CRP will support the interpretation of spectroscopic measurements on current and future fusion experiments, the modelling of tungsten in fusion plasma, and the design and optimization of fusion reactor experiments, and will advance the fusion energy research efforts

First Research Coordination Meeting, IAEA Headquarters, Vienna, Austria, 13-15 December 2010. presentations

Second Research Coordination Meeting, Heidelberg, Germany, 29-31 August 2012. agenda.

Third Research Coordination Meeting, IAEA Headquarters, Vienna, Austria, 06-08 October 2014. Agenda and presentations.

CRP Participants and Their Project Titles

Rajesh SRIVASTAVA, Indian Institute of Technology at Roorkee: Plasma Based Fully Relativistic Distorted Wave Calculations of Electron Impact Excitation and Ionization Cross Sections and Associated Photon Emissions of Atoms and Ions.

Alfred MÜLLER, Justus-Liebig-Universität Giessen: Crossed- and Merged-Beams Experiments on Tungsten Ion Interactions with Photons and Electrons.

Nobuyuki NAKAMURA, University of Electrocommunications; Institute of Laser Science, Tokyo 182, Japan: Spectroscopic Studies of Highly Charged Tungsten Ions Using Electron Beam Ion Traps (EBITs).

Alexander RYABTSEV and Rimma KILDIYAROVA, Russian Academy of Sciences, Institute of Spectroscopy, Troitsk: Spectra of W VIII and W IX and Isoelectronic Ions of Hf, Ta and Re.

Wan-Ü Lydia TCHANG-BRILLET, Observatoire de Paris, LERMA, and Jean-François WYART, Université Paris Sud: Spectroscopic Properties of Moderately Charged Ions of Tungsten.

Peter BEIERSDORFER and Joel CLEMENTSON, Lawrence Livermore National Laboratory: Atomic Physics of Tungsten Ions for Magnetic Fusion Diagnostics.

Chenzhong DONG, Northwest Normal University, College of Physics and Electronic Engineering; Institute of Atomic and Molecular Physics, 967 Anning East Road, 730070 Lanzhou, China: Dielectronic Recombination Cross Sections and Rate Coefficients of Highly Ionized Tungsten Ions.

Fumihiro KOIKE, Sophia University, Department of Materials and Life Sciences, Japan: Atomic Physics in Weakly, Moderately or Highly Charged Ions of Tungsten Atoms.

Malvina TRZHASKOVSKAYA, Russian Academy of Sciences, St. Petersburg Nuclear Physics Institute and Vladimir K. NIKULIN, Ioffe Physical Technical Institute: Unified Database of Radiative Recombination and Photoionization Cross Sections as Well as Radiative Recombination and Radiated Power Loss Rate Coefficients for Tungsten Ions in Plasmas.

James COLGAN, Los Alamos National Laboratory: Collisional Data Calculations and Collisional-Radiative Modeling for Tungsten.

Valeriy LISITSA and Alexander KUKUSHKIN, Undertaking of the Developments in Fusion Ldt (UDIF), Oruzheiny 15, Building 1, 125047 Moscow, Russian Federation: Radiative-Collisional Processes in Electron-Tungsten Ion Collisions.

Yuri RALCHENKO, National Institute of Standards and Technology: Experimental and theoretical analysis of EUV and x-ray spectra from highly-charged ions of tungsten.

Duck-Hee KWON, Korea Atomic Energy Reserach Institute: Electron impact ionization and recombination of lowly charged, near neutral tungsten Ions.