Theory of alignment and orientation in beam-foil experiments

Research output: Contribution to journalArticlepeer-review

37 Scopus citations


The preferential population of magnetic quantum levels of atomic states produced in beam-foil collisions is explained using a density-matrix formulation. The density matrix for the beam in the interior of the foil is evolved in time to obtain the density matrix after emergence from the foil. The dependence upon tilt angle of the foil relative to the beam is calculated. The Stokes parameters of the light emitted by decay of the atomic state are given in terms of the density matrix. Formulas which are valid for arbitrary angular momentum of the atomic state are derived. Comparison with experiment shows good agreement with data.

Original languageEnglish
Pages (from-to)2061-2069
Number of pages9
JournalPhysical Review A
Issue number6
StatePublished - 1 Jan 1976
Externally publishedYes

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


Dive into the research topics of 'Theory of alignment and orientation in beam-foil experiments'. Together they form a unique fingerprint.

Cite this