An analytic formula gives the weak-line intensity distribution of complex atoms as I^{-2 k T_e / epsilon_0 - 1}, explaining Learner's power law and offering a plasma thermometer.
Exponential increase of energy level density in atoms: Th and Th II
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abstract
We present analytical estimates and numerical calculations showing that the energy level density in open-shell atoms increases exponentially with increase of excitation energy. As an example, we use the relativistic Hartree-Fock and configuration interaction methods to calculate the density of states of Th and Th II. The result is used to estimate the effect of electrons on the nuclear transition which is considered for the use in a nuclear clock.
fields
physics.atom-ph 1years
2019 1verdicts
CONDITIONAL 1representative citing papers
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A Simple Explanation for the Observed Power Law Distribution of Line Intensity in Complex Many-Electron Atoms
An analytic formula gives the weak-line intensity distribution of complex atoms as I^{-2 k T_e / epsilon_0 - 1}, explaining Learner's power law and offering a plasma thermometer.