van der Burgt, Peter J.M. and Corr, J.J. and McConkey, J.W. (1991) The effect of a finite interaction region on the measurement of coherence parameters in electron-photon coincidence experiments. Journal of Physics B: Atomic, Molecular and Optical Physics, 24 (5). pp. 1049-1067. ISSN 0953-4075

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Abstract

Electron-photon coincidence experiments are usually carried out by crossing an electron beam with a beam of atoms emerging from a capillary tube or array. Recently it has been found that the finite dimensions of the interaction region formed by the crossing beams can affect the coherence parameters that are measured in these experiments. The authors have developed models with which these effects and those related to the finite acceptance angles of the detectors can be simulated numerically. This article presents a description of the models and presents results which illustrate the possible magnitude of these effects in electron-rare gas scattering experiments. Other depolarizing effects such as internal atomic interactions are also discussed.

Item Type:	Article
Keywords:	finite interaction region; measurement; coherence parameters; electron-photon coincidence experiments;
Academic Unit:	Faculty of Science and Engineering > Experimental Physics
Item ID:	9821
Identification Number:	https://doi.org/10.1088/0953-4075/24/5/026
Depositing User:	Dr Peter van der Burgt
Date Deposited:	24 Aug 2018 10:43
Journal or Publication Title:	Journal of Physics B: Atomic, Molecular and Optical Physics
Publisher:	IOP Publishing
Refereed:	Yes
URI:	http://iopscience.iop.org
Use Licence:	This item is available under a Creative Commons Attribution Non Commercial Share Alike Licence (CC BY-NC-SA). Details of this licence are available here

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