Atomic and Molecular Data
- Electron-Impact Cross Sections for
Ionization and Excitation
- Y.-K. Kim, K.K. Irikura, M.E. Rudd, M.A. Ali, and P.M. Stone
- This is a database primarily of total ionization cross sections of
molecules by electron impact. The database also includes cross sections for a
small number of atoms and energy distributions of ejected electrons for H, He,
and H2. The cross sections were calculated using the
Binary-Encounter-Bethe (BEB) model, which combines the Mott cross section with
the high-incident energy behavior of the Bethe cross section. Selected
experimental data are included. Electron-impact excitation cross sections are
also included for some selected atoms.
- Potential Energy Surface Database
of Group II Dimer Molecules
- S. Kotochigova and P. Julienne
- The purpose of this work is to provide critical atomic and molecular data
needed in order to evaluate the feasibility of using laser cooled and trapped
Group II atomic species (Mg, Ca, Sr, and Ba) for ultra-precise optical
clocks or quantum information processing devices.
Nuclear Physics Data
- Radionuclide Half-Life Measurements
Made at NIST
- M. P. Unterweger, D. D. Hoppes, and F. J. Schima
- This database is a table of the half lives of 65 important radionuclides
measured primarily with ionization chambers by the Radioactivity Group of
NIST. The included half lives range from 10 minutes to 60.7 years.
- Atomic Weights and Isotopic
Compositions
- This database contains the isotopic compositions or abundances of those
elements which have characteristic terrestrial compositions. Atomic weights
and relative atomic masses are also available for elements 1 through 111.
Condensed Matter Physics Data
- Atomic Model Data for Electronic
Structure Calculations
- Svetlana Kotochigova, Zachary Levine, Eric Shirley, Mark Stiles,
and Charles Clark
- This database consists of evaluated data for use in total-energy
calculations of electronic structure by density-functional theory.
It contains total energies and orbital energy eigenvalues for
all atoms from hydrogen to uranium, with micro-Hartree uncertainty
in the total energy; as computed in the local-density approximation
(LDA), the local-spin-density approximation (LSD), the relativistic
local-density approximation (RLDA), and scalar-relativistic local-density
approximation (ScRLDA).
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