KINEMATIC ANALYSIS OF RADIATION FROM ATOMS AFTER ELECTRON-IMPACT EXCITATION

Authors
Citation
Wy. Cheng et Kn. Huang, KINEMATIC ANALYSIS OF RADIATION FROM ATOMS AFTER ELECTRON-IMPACT EXCITATION, Journal of physics. B, Atomic molecular and optical physics, 28(8), 1995, pp. 1547-1567
Citations number
45
Categorie Soggetti
Physics, Atomic, Molecular & Chemical",Optics
ISSN journal
09534075
Volume
28
Issue
8
Year of publication
1995
Pages
1547 - 1567
Database
ISI
SICI code
0953-4075(1995)28:8<1547:KAORFA>2.0.ZU;2-M
Abstract
The polarization of the emitted photon from an atom or ion after elect ron-impact excitation is related to that of the incident electron by m aking use of rotation and parity symmetries. Explicit formulas for the angular distribution and polarization of the photon are derived in te rms of angle-independent dynamic parameters by using the helicity form ulation of the collision processes. Physical interpretations of the fi ve independent dynamic parameters in the electric dipole approximation are presented. Conditions for emitting completely polarized photons a re given.