Polarisation correlation measurements on the 31P state of helium for positive and negative scattering angles
- 14 September 1988
- journal article
- Published by IOP Publishing in Journal of Physics B: Atomic, Molecular and Optical Physics
- Vol. 21 (17), 2953-2959
- https://doi.org/10.1088/0953-4075/21/17/008
Abstract
The scattering amplitudes for electron impact excitation of the 31P state of helium have been measured for an incident energy of 80 eV and both positive and negative electron scattering angles using polarisation correlations between inelastically scattered electrons and 501.6 nm photons. The expected dependence of the Stokes parameters on the sign of the electron scattering angle is considered and found to agree with the present measurements which differ from the earlier results of Standage and Kleinpoppen (1976) in the symmetry behaviour of the linear Stokes parameter P2.Keywords
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