Author:
Brunger MJ,Houghton RK,Teubner PJO
Abstract
A modulated crossed-beam technique has been used to measure the differential cross section for elastic scattering of electrons from the 31S state in magnesium at an impact electron energy of 20 eV. The cross section was measured over a range of scattering angles from 15� to 1300? Our results agree with the previous experimental cross sections of Williams and Trajmar within the combined uncertainties, however, the present data reduce the uncertainty by about an order of magnitude, thereby allowing a meaningful comparison to be made with the predictions of the various theories. At this time no theory accurately predicts the behaviour of the elastic differential cross section over the whole angular range. A complex phase-shift analysis is applied to the present data to derive the 20 e V integral elastic cross section. This integral cross section is also compared with the results of previous experiment and theory.
Subject
General Physics and Astronomy
Cited by
3 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献
1. Integral Cross Sections for Electron–Magnesium Scattering Over a Broad Energy Range (0–5000 eV);Journal of Physical and Chemical Reference Data;2018-12
2. Critical points for electron–Mg atom elastic scattering;Journal of Physics B: Atomic, Molecular and Optical Physics;2018-01-09
3. Elastic electron scattering by a magnesium atom;Journal of Physics B: Atomic, Molecular and Optical Physics;2007-05-01