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FLYCHK: Generalized Model of Atomic Processes In Plasmas

On-line Capability of NLTE kinetics Code

The FLYCHK code provides a simple and general modeling capability to generate atomic level populations and charge state distributions for low-Z to mid-Z elements under NLTE(Non-Local Thermodynamic Equilibrium) conditions. The code is currently available at the password-protected NIST website. For more information on details, validity and limitations of the code, please click the FLYCHK information page .

Steady-State Charge State Distributions

Average charge states <Z> of atoms from Z=1 (Hydrogen) to Z=79 (Gold) are calculated by FLYCHK code and plotted over a wide range of plasma conditions. The calculation is done for the steady-state plasmas with electron temperatures from 0.5 eV to 100 keV and electron densities from 1012 cm-3 to 1024 cm-3. Click the element in the periodic table and a page will apear with the information on <Z>, Charge State Distribution and Total Radiative Power Loss Rates of the element.

Rate Coefficients at Coronal Equilibirum for Plasma Modeling Applications

To help plasma modeling applications, Rate coefficients of Direct Ionization, Excitation-Autoionization, Radiative Recombination and Dielectronic Recombination at coronal conditions are generated for a wide range of plasma temperatures from 0.5 eV to 100 keV. Also avaialble are the Radiative Loss rates per Charge State, both Line radiation and Recombination radiation. They are available at the same page as Charge state distributions. The details of the methods are found at the FLYCHK Rates information page .

Hydrogen Helium Lithium Beryllium Boron Carbon Nitrogen Oxygen Fluorine Neon Sodium Magnesium Aluminum Silicon Phosphorus Sulfur Chlorine Argon Potassium Calcium Scandium Titanium Vanadium Chromium Manganese Iron Cobalt Nickel Copper Zinc Gallium Germanium Arsenic Selenium Bromine Krypton Rubidium Strontium Yttrium Zirconium Niobium Molybdenum Technetium Ruthenium Rhodium Palladium Silver Cadmium Indium Tin Antimony Tellurium Iodine Xenon Cesium Barium Lanthanum Cerium Praseodymium Neodymium Promethium Samarium Europium Gadolinium Terbium Dysprosium Holmium Erbium Thulium Ytterbium Lutetium Hafnium Tantalum Tungsten Rhenium Osmium Iridium Platinum Gold FLYCHK AtNIST

Table of Elements