dipole transition

dipole transition

[′dī‚pōl tran′zish·ən]
(atomic physics)
A transition of an atom or nucleus from one energy state to another in which dipole radiation is emitted or absorbed.
References in periodicals archive ?
We have used a core polarization potential in a Dirac-Fock wave function code to calculate target atom wave functions and a matching form of the dipole transition operator to calculate oscillator strengths and Born cross sections.
In other words, the correction for the dipole transition operator can also be used to introduce the correction for the core polarization in plane-wave Born cross sections.
The book begins with the basic knowledge of the theories of nuclei and angular momentum, develops through the standard description of the fine and magnetic hyperfine interactions, and their impact on the energy structure of the lanthanide ions, and includes advanced description of f to f electric and magnetic dipole transitions.