A new hemispherical analyser with 2-D PSD and focusing lens for use in 0 degrees electron spectroscopy
Loading...
Date
Authors
Benis, E. P.
Zaharakis, K.
Voultsidou, M. M.
Zouros, T. J. M.
Stockli, M.
Richard, P.
Hagmann, S.
Journal Title
Journal ISSN
Volume Title
Publisher
Abstract
Type
Type of the conference item
Journal type
peer reviewed
Educational material type
Conference Name
Journal name
Nuclear Instruments & Methods in Physics Research Section B-Beam Interactions with Materials and Atoms
Book name
Book series
Book edition
Alternative title / Subtitle
Description
A new electron spectrograph has been developed to study electron emission in ion-atom collisions and in particular for use in 0 degrees Auger projectile spectroscopy. It incorporates a hemispherical analyser, a 2-dimensional position-sensitive detector (PSD) with multichannel plates and a resistive anode encoder. A novel feature of this analyser is the use of an asymmetric entrance aperture and a non-zero entrance potential to improve focusing by correcting for fringing field effects. A four-element lens mounted at the entrance of the analyser, provides a virtual slit, focusing and decelerating incoming electrons for improved enery resolution and reduction of the ion beam scattering at the spectrometer entrance. The analyser has an acceptance energy range of 20%. As a first test of the apparatus, the production of Binary Encounter electrons from 20 MeV F-9+,F-8+ + H-2 collisions was measured. The bare F9+ results were used for an in situ calibration of the 2D-PSD overall efficiency. The F8+ data were found to be in good agreement with the elastic electron scattering model. (C) 1998 Elsevier Science B.V. All rights reserved.
Description
Keywords
hemispherical electron spectrometer/spectrograph, o degrees auger projectile spectroscopy, binary encounter electrons, energy-loss spectrometer, collisions, analyzer, ions
Subject classification
Citation
Link
<Go to ISI>://000077719400020
http://ac.els-cdn.com/S0168583X98004820/1-s2.0-S0168583X98004820-main.pdf?_tid=911bdc42-4de8-11e3-a29f-00000aab0f6b&acdnat=1384514881_ba71c222cc7e1d713d52d3eea9f47d5f
http://ac.els-cdn.com/S0168583X98004820/1-s2.0-S0168583X98004820-main.pdf?_tid=911bdc42-4de8-11e3-a29f-00000aab0f6b&acdnat=1384514881_ba71c222cc7e1d713d52d3eea9f47d5f
Language
en
Publishing department/division
Advisor name
Examining committee
General Description / Additional Comments
Institution and School/Department of submitter
Πανεπιστήμιο Ιωαννίνων. Σχολή Επιστημών και Τεχνολογιών. Τμήμα Βιολογικών Εφαρμογών και Τεχνολογιών