Atomic Spectroscopy Databases

• Atomic Spectra Database
• Handbook of Basic Atomic Spectroscopic Data
• Energy Levels of Hydrogen and Deuterium
• Ground Levels and Ionization Energies for the Neutral Atoms
• Spectral Data for the Chandra X-ray Observatory (discontinued)
• NLTE Databases and Codes
  • FLYCHK Collisional-Radiative Code
  • SAHA Plasma Population Kinetics Database
  • NLTE4 Plasma Population Kinetics Database
• Spectrum of Platinum Lamp for Ultraviolet Spectrograph Calibration
• Spectrum of Th-Ar Hollow Cathode Lamps
• X-ray Transition Energies
• Atomic Spectra Bibliographic Databases
  • Bibliographic Database on Atomic Transition Probabilities
  • Bibliographic Database on Atomic Spectral Line Broadening and Shifts
  • Bibliographic Database on Atomic Energy Levels and Spectra

• Atomic Spectra Database - Version 4 [Updated]
  

  
  

  Yu. Ralchenko, A. Kramida, J. Reader, and NIST ASD Team
  

  
  

  This database contains critically evaluated NIST data for radiative transitions and energy levels in atoms and atomic ions. Data are included for observed transitions of 99 elements and energy levels of 89 elements. ASD contains data on more than 1000 spectra from about 0.4 Å to 20000 µm, with more than 90,000 energy levels and 180,000 lines, 73,000 of which have transition probabilities.
  
  In Version 4, the database management system has been completely replaced by a relational database management system. This assures a high level of consistency and integration of the data, as for example the information on the lines and levels of an atom. A new version of the interface has been developed. The interface for the return pages includes direct access to the bibliographic references. The multiplet-averaged data can be retrieved for arbitrary atoms and ions. An advanced help system is provided with balloon explanations of various symbols and quantities.
  
  New graphical features include dynamic transition plots (Grotrian diagrams) with ability to zoom into particular energy levels and their transitions, and online generated plots for Saha/Local Thermodynamic Equilibrium (LTE) plasma emission spectra for arbitrary electron temperature and density. The Grotrian diagrams interface requires a Java2 plugin (available at java.sun.com) for the user's browser. Also plots showing positions of spectral lines from different ions can be generated online.

  
  

• Handbook of Basic Atomic Spectroscopic Data
  
  

  J.E. Sansonetti, W.C. Martin, and S.L. Young

  
  

  This handbook provides a selection of the most important and frequently used atomic spectroscopic data. The compilation includes data for the neutral and singly-ionized atoms of all elements hydrogen through einsteinium (Z = 1-99). The wavelengths, intensities, and spectrum assignments are given in a table for each element, and the data for the approximately 12,000 lines of all elements are also collected into a finding list, sorted by wavelength. The energy levels and transition probabilities (where available) are listed for a total of about 2,400 of the most persistent lines and we also give a separate table of energy level data for each spectrum. Details of the atomic weight, isotopic abundance, mass, nuclear spin, and magnetic moment of each element are also provided.

  
  

• Energy Levels of Hydrogen and Deuterium
  
  

• U.D. Jentschura, S. Kotochigova, E.O. Le Bigot, P.J. Mohr, and B.N. Taylor

  
  

  This database provides theoretical values of energy levels of hydrogen and deuterium for principle quantum numbers n = 1 to 200 and all allowed orbital angular momenta l and total angular momenta j. The values are based on current knowledge of the revelant theoretical contributions including relativistic, quantum electrodynamic, recoil, and nuclear size effects. Contributions that are only known for low n states have been extrapolated to highly-excited states.

  
  

• Ground Levels and Ionization Energies for the Neutral Atoms  
  
  

  W.C. Martin, A. Musgrove, and J.E. Sansonetti

  
  

  This table gives the principal ionization energies (in eV) for the neutral atoms from hydrogen (Z=1) through rutherfordium (Z=104). The spectroscopy notations for the electron configurations and term names for the ground levels are also included.

  
  

• FLYCHK Collisional-Radiative Code
  

  
  

  H.-K. Chung, M.H. Chen, R.W. Lee, and Yu. Ralchenko

  
  

  Collisional-radiative code FLYCHK calculates atomic level populations, charge state distributions, and plasma emission spectra for low-Z to mid-Z elements under non-local thermodynamic equilibrium (NLTE) conditions.

  
  

• SAHA Plasma Population Kinetics Database
  
  

  Yu. Ralchenko

  
  

  This database contains benchmark results for simulation of plasma population kinetics and emission spectra. The data were contributed by the participants of the 3rd Non-LTE Code Comparison Workshop. The available data include mean ion charges, ion populations, atomic process rates and other parameters over a wide range of temperatures and densities for a number of elements from C to Au.

  
  

• NLTE4 Plasma Population Kinetics Database
  
  

  Yu. Ralchenko

  
  

  This database contains benchmark results for simulation of plasma population kinetics and emission spectra. The data were contributed by the participants of the 4th Non-LTE Code Comparison Workshop. The available data include mean ion charges, ion populations, atomic process rates and other parameters over a wide range of temperatures and densities for C, Ar, Fe, Sn, Xe, and Au.

  
  

• Spectrum of Platinum Lamp for Ultraviolet Spectrograph Calibration
  
  

  J.E. Sansonetti, J. Reader, C.J. Sansonetti, and N. Acquista

  
  

  An atlas of the spectrum of a platinum/neon hollow-cathode reference lamp in the region 1130 Å to 4330 Å is given, with the spectral lines marked and their intensities, wavelengths, and classifications listed. Graphical figures of the spectrum are included.

  
  

• Spectrum of Th-Ar Hollow Cathode Lamps
  

  
  

  G. Nave, C.J. Sansonetti, F. Kerber

  
  

  This atlas presents observations of the infrared (IR) spectrum of a low current Th-Ar hollow cathode lamp with the 2-m Fourier transform spectrometer (FTS) at the National Institute of Standards and Technology. These observations establish more than 2400 lines that are suitable for use as wavelength standards in the range 691 nm to 5804 nm.

  
  

• X-ray Transition Energies

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  R.D. Deslattes, E.G. Kessler, Jr., P. Indelicato, L. de Billy, E. Lindroth, and J. Anton

  
  

  This X-ray transition table provides the energies and wavelengths for the K and L transitions connecting energy levels having principal quantum numbers n = 1, 2, 3, and 4. The elements covered include Z = 10, neon to Z = 100, fermium. There are two unique features of this database: (1) all experimental values are on a scale consistent with the International System of measurement (the SI) and the numerical values are determined using constants from the Recommended Values of the Fundamental Physical Constants: 1998 and (2) accurate theoretical estimates are included for all transitions.
  
  

• Atomic Spectra Bibliographic Databases  [Updated]
  
  
  • Bibliographic Database on Atomic Transition Probabilities
    

    
    

    A. Kramida and J.R. Fuhr

    
    

    This interactive database contains references on atomic transition probabilities (oscillator strengths, line strengths, and radiative lifetimes). Both theoretical and experimental papers are listed.
    
    

  • Bibliographic Database on Atomic Spectral Line Broadening and Shifts
    

    
    

    A. Kramida and J.R. Fuhr

    
    

    This interactive database contains references on atomic spectral line broadening (line shapes and shifts). Both theoretical and experimental papers are listed.

    
    

  • Bibliographic Database on Atomic Energy Levels and Spectra
    

    
    

    A. Kramida
    

    
    

    This interactive database contains references on atomic energy levels and wavelengths. Preference is given to experimental papers.