ICTP 2019

Atomic and Molecular Spectroscopy in Plasmas

This joint IAEA-ICTP Workshop, which was held 6 – 10 May 2019, was a 5-day series of lectures and computing practical exercises to help early-career plasma physicists develop an understanding of the techniques used to model and simulate radiative processes in plasmas. The focus is on plasmas of relevance to fusion, astrophysics and other high-energy environments, and the aim is to facilitate knowledge-transfer between researchers from developed and developing countries.

Further details about this event are available on the ICTP website.


  • Hyun-Kyung Chung (National Fusion Research Institute, South Korea)
  • Kalle Heinola (IAEA)
  • Christian Hill (IAEA)
  • Yuri Ralchenko (NIST, USA)

Local Organizer

  • George Thompson (ICTP)

Confirmed Lecturers

  • Sebastiján Brezinsek (Forschungszentrum Jülich, Germany)
  • Hyun-Kyung Chung (Gwangju Institute of Science and Technology, South Korea)
  • Eugene Churazov (Max Planck Institute for Astrophysics, Garching, Germany)
  • Sandrine Ferri (Aix-Marseille Université, France)
  • Chris Fontes (Los Alamos National Laboratory, USA)
  • Kalle Heinola (IAEA)
  • Christian Hill (IAEA)
  • Yuri Ralchenko (NIST, USA)
  • Sam Vinko (University of Oxford, UK)


  • Experimental plasma spectroscopy
  • Atomic structure and radiation
  • Collisional physics in plasmas
  • Spectral line broadening
  • Line intensities and collisional-radiative modelling
  • Astrophysical spectroscopy
  • Plasma opacity
  • Radiative transfer in plasmas
  • Spectroscopy of magnetic confinement fusion (MCF) plasmas
  • Molecular structure and spectroscopy
  • Experimental plasma spectroscopy
Group photo for the 2019 Joint ICTP-IAEA School on Atomic and Molecular Spectroscopy in Plasmas
Participants and lecturers at the 2019 Joint ICTP-IAEA School on Atomic and Molecular Spectroscopy in Plasmas, 6 – 10 May 2019, Trieste, Italy (Click for a larger picture).


Atomic Structure
  1. R. D. Cowan The Theory of Atomic Structure and Spectra (Los Alamos Series in Basic and Applied Sciences), University of California Press (1981)
Molecular Spectroscopy
  1. R. J. Le Roy, Where Is the Intensity Maximum in a Pure Rotational Spectrum?, J. Molec. Spectrosc. 192, 237 (1998).
  2. U. Fantz, Basics of plasma spectroscopy, Plasma Sources Sci. Technol. 15, S137 (2006).
  3. P. R. Bunker and P. Jensen, Molecular Symmetry and Spectroscopy, 2nd ed., Academic Press (2012).
  4. J. M. Brown and A. Carrington, Rotational Spectroscopy of Diatomic Molecules, Cambridge University Press (2003).
  5. W. Demtröder, Atoms, Molecules and Photons: An Introduction to Atomic-, Molecular- and Quantum Physics, 3rd ed., Springer (2019).
  6. G. Herzberg, Spectra of Diatomic Molecules, Van Nostrand, 1950.
  7. P. F. Bernath, Spectra of Atoms and Molecules, 2nd ed., Oxford University Press, 2005.
  8. J. M. Hollas, High Resolution Spectroscopy", 4th ed., Wiley, 2013.
  9. J. Tennyson, Astronomical Spectroscopy, 2nd ed., World Scientific, 2011.
Line Broadening
  1. H. R. Griem, Plasma Spectroscopy, McGraw-Hill, New York (1964)
  2. H. R. Griem, Spectral Line Broadening by Plasmas, Academic, New York, (1974).
  3. H. R. Griem, Principles of Plasma Spectroscopy, Cambridge University Press, Cambridge, (1997).
  4. D. Mihalas, Stellar Atmospheres, The University Press Chicago (1978).
  5. N. Konjević, Plasma broadening and shifting of non-hydrogenic spectral lines: present status and applications, Physics reports 316, 339 (1999).
  6. H.-J. Kunze, Introduction to Plasma Spectroscopy, Springer-Verlag (2009).
  7. S. Alexiou, Overview of plasma line broadening, High Energy Density Physics 5, 225 (2009)
  8. E. Stambulchik and Y. Maron, Plasma line broadening and computer simulations: A mini-review, High Energy Density Physics 6, 914 (2010).
Opacity and Radiative Transfer in Plasmas
  1. P.A. Sturrock (ed.), Physics of the Sun Volume 1: The Solar Interior, Ch. 3 (W. F. Huebner): Atomic and Radiative Processes in the Solar Interior, pp.33 – 75 Reidel (1986).
  2. W. F. Huebner and W. David Barfield, Opacity, Springer (2014).
  3. D. Mihalas, Stellar Atmospheres, Freeman (1978).
  4. G. B. Rybicki and A. P. Lightman, Radiative Processes in Astrophysics, Wiley (1979).
  5. M. Schwarzschild, Structure and Evolution of the Stars, Dover (1958).
  6. S. Chandrasekhar, An Introduction to the Study of Stellar Structure, General Publishing (1967).
  7. Ya. B. Zel’dovich and Yu. P. Raizer, Physics of Shock Waves and High-Temperature Hydrodynamic Phenomena, Dover (2002).
  8. R. L. Bowers and J. R. Wilson, Numerical Modeling in Applied Physics and Astrophysics, Jones and Bartlett (1991).
  9. R. D. Cowan, The Theory of Atomic Structure and Spectra, University of California (1981).
  10. D. H. Sampson, H. L. Zhang and C. J. Fontes, A Fully Relativistic Approach for Calculating Atomic Data for Highly Charged Ions, Physics Reports 477, 111-214 (2009).
  11. C. J. Fontes et al., The Los Alamos Suite of Relativistic Atomic Physics Codes, J. Phys. B 48, 144014 (2015).
  12. B. P. Abbott et al., Observation of Gravitational Waves from a Binary Black Hole Merger, Physical Review Letters 116, 061102 (2016).
  13. B. P. Abbott et al., Multi-messenger Observations of a Binary Neutron Star Merger, Astrophysical Journal Letters 848, L12 (2017).


Monday, 6 May 2019

09:00 – 09:50Opening
09:50 – 10:00Break
Session 1: Atomic Structure and Radiation
10:00 – 10:50Yuri RALCHENKO: Atomic Structure and Radiation I
[presentation (pdf: 710.4 KB)]
10:50 – 11:10Coffee Break
11:10 – 12:00Yuri RALCHENKO: Atomic Structure and Radiation II
[presentation (pdf: 3.6 MB)]
12:00 – 13:20Lunch
Session 2: Molecular Spectroscopy
13:20 – 14:10Christian HILL: Rotational Spectroscopy of Molecules
14:10 – 14:20Break
14:20 – 15:10Christian HILL: Vibrational Spectroscopy of Molecules
15:10 – 15:30Coffee Break
Session 3: Poster Session and Welcome Reception
15:30 – 17:30Posters
17:30 – 19:00Welcome Reception

Tuesday, 7 May 2019

Session 4: Collisions in Plasmas
09:00 – 09:50Yuri RALCHENKO: Collision Physics I
09:50 – 10:00Break
10:00 – 10:50Yuri RALCHENKO: Collision Physics II
10:50 – 11:10Coffee Break
Session 5: Molecular Spectroscopy
11:10 – 12:00Christian HILL: Electronic Spectroscopy of Molecules
12:00 – 13:00Lunch
Session 6: Line Broadening
13:20 – 14:10Sandrine FERRI: Line Broadening I
[presentation (pdf: 9.6 MB)]
14:10 – 14:20Break
14:20 – 15:10Sandrine FERRI: Line Broadening II
15:10 – 15:30Coffee Break
Session 7: Practical Session I
15:30 – 17:30Kalle HEINOLA: Resources in Plasma Spectroscopy
[presentation (pdf: 1.8 MB)]

Wednesday, 8 May 2019

09:00 – 09:50Yuri RALCHENKO: Autoionization and Dielectronic Recombination
09:50 – 10:00Break
Session 8: Collisional-Radiative Processes
10:00 – 10:50Hyun-Kyung CHUNG: Line Intensities and Collisional-Radiative Modelling I
[presentation (pdf: 7.3 MB)]
10:50 – 11:10Coffee Break
11:10 – 12:00Hyun-Kyung CHUNG: Line Intensities and Collisional-Radiative Modelling II
12:00 – 13:20Lunch
Session 9: Opacity and Radiative Transfer in Plasmas
13:20 – 14:10Christopher J. FONTES: Opacities
[presentation (pdf: 1.5 MB)]
14:10 – 14:20Break
14:20 – 15:10Christopher J. FONTES: Opacity Applications for Astrophysics
[presentation (pdf: 7.3 MB)]
15:10 – 15:30Coffee Break
Session 10: Practical Session II
15:30 – 17:30Hyun-Kyung CHUNG: Introduction to FLYCHK
[presentation (pdf: 4.5 MB)]

Thursday, 9 May 2019

Session 11: Astrophysical Spectroscopy
09:00 – 09:50Eugene CHURAZOV: Astrophysical Spectroscopy I
[presentation (pdf: 6.7 MB)]
09:50 – 10:00Break
10:00 – 10:50Eugene CHURAZOV: Astrophysical Spectroscopy II
10:50 – 11:10Coffee Break
Session 12: Magnetic Confinement Fusion (MCF) Spectroscopy
11:10 – 12:00Sebastiján BREZINSEK: MCF Spectrscopy I
[presentation (pdf: 9.2 MB)]
12:00 – 13:20Lunch
13:20 – 14:10Kalle HEINOLA: Spectroscopic applications for PMI observations
[presentation (pdf: 5.9 MB)]
14:10 – 14:20Break
14:20 – 15:10Sebastiján BREZINSEK: MCF Spectrscopy II
[presentation (pdf: 6.8 MB)]
15:10 – 15:30Coffee Break
Session 13: Practical Session III
15:30 – 17:00Plasma Diagnostics

Friday, 10 May 2019

Session 14: Experimental Spectroscopy
09:00 – 09:50Sam VINKO: Experimental Spectroscopy I
09:50 – 10:00Break
10:00 – 10:50Sam VINKO: Experimental Spectroscopy II
10:50 – 11:10Group Photograph
11:10 – 11:30Coffee Break
11:30 – 12:30Q&A Session; close of meeting
12:30 – 13:20Lunch


44 participants from 20 countries.

Theoretical energy levels, transition rates, lifetimes, hyperfine structures and isotopic shifts for the Sn XLIX spectrum of Plasma interest.
Spectral Unraveling of EUV Lithography Light Sources
The High Efficiency XUV/VUV Overview Spectrometer at Wendelstein 7-X
Xiahua CHEN
The investigation of ELM-induced W source in EAST divertor
Arnab DEKA
Design and Development of Doppler Shift Spectroscopy and Characterization of Negative Neutral Hydrogen Beam
Iron K-shell radiative, Auger and photoionization processes in Debye-Hückel plasma environments
WEST VUV spectrometers
Hyper-high spatial, temporal and spectral resolution characterisation of a dense and hot plasma, by means of new intense X rays laser sources
Stephan ERTMER
Light reflection in the line shape of sputtered atoms in the linear plasma device PSI-2
Chromospheric Network and Internetwork Comparsion in C II 1335 Å Line
Choice of the detectors for light impurities plasma studies at W7-X using ‘C/O Monitor’ system
Insights from collisional-radiative modeling applied to disrupting ITER-like fusion plasmas
Shivam GUPTA
Electron-Impact Excitation of Inert Gas Atoms (Ions) and Plasma Modeling
Andreas HOLM
Impact of molecules on outer target plasma detachment in DIII-D using UEDGE
Effect of Galaxy Cluster Environment on Star Formation Rates of Galaxies.
Gyeongbo KANG
Ultrafast measurement of non-equilibrium d-band electron dynamics in warm dense copper using an XFEL
Nadir KHAN
Low energy range dielectronic recombination of Fluorine-like Fe17+ at the CSRm
Gradient Effects on High-Resolution X-ray Spectra from a Polar Direct Drive Exploding Pusher on NIF
Electron Temperature estimation in Wendelstein 7-X stellarator using Pulse Height Analysis (PHA) system
Comparison and validation of tungsten transport simulations in the scrape-off layer of JET L-mode plasmas
Steffen KÜHN
High-resolution astrophysical applications of the PolarX-EBIT
Radiative Double Electron Capture for 2.21 MeV/u F9+,8+ + N2,Ne
Gyusang LEE
Kinetic Simulation for EUV spectroscopy on the Degenerated Non-equilibrium Electrons in Dense Aluminum plasmas
Jinqing LI
Qifeng LU
Observation of Indirect Ionization of W7+ in EBIT plasma
Chunhai LYU
Theoretical studies on narrow-band hard-x-ray lasing
Using multiple independent diagnostics to measure the hot-spot electron temperature of ICF implosions at the NIF
Ab initio study of the vibronic spectrum of X 2Πu electronic state of the dicyanoacetylene cation
Alamgir MONDAL
Experimental investigation and composition analysis of laser produced plasma plume in front and back ablation geometries
ps laser-produced C and Al plasmas characterization by interferometry and emission spectroscopy
Laser-induced breakdown spectroscopy for composition analysis of plasma facing components
Study of Light Source in the Soft X-ray Region for the Development of a Tabletop Microscope
Dmitry OSIN
Spectroscopic Investigations of Heating and Fuelling Systems on C-2W - Advanced Beam-Driven FRC
Divya PAI
Spectroscopic Investigations of laser Produced Plasma
Spectral analysis of moderately ionized silver ions (Ag III-Ag V)
Vibrationally-resolved electron-impact excitation of molecular hydrogen
Metallic Dust Size Distribution in Tokamaks
Zhi-Ming TANG
Determination of dipole polarizabilities and magic wavelengths for Yb atom
Jacob WARD
Spectrum of Ni V in the Vacuum Ultraviolet
Getasew WUBETU
Collisional Radiative Model of Polarisation Resolved Spectroscopy of Laser Produced Cu Plasmas Emission
Nandini YADAV
Preliminary Results for Estimation of Neutral Temperature in Aditya-U Tokamak
Investigating the optimized physical and electrical operating condition of DC-derived pulsed spark discharge over water surface generated by different input parameters