Hemispherical analyser with 2-D PSD for zero-degree Auger projectile spectroscopy
Loading...
Date
Authors
Benis, E. P.
Zouros, T. J. M.
Aliabadi, H.
Richard, P.
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
Physica Scripta
Book name
Book series
Book edition
Alternative title / Subtitle
Description
Details of a new high gain zero-degree Auger projectile electron spectrograph using a hemispherical analyser and a 2-dimensional position sensitive detector (PSD) with multichannel plates and a resistive anode encoder are presented. A four-element lens mounted at the entrance of the analyser, provides a virtual slit for the incoming electrons by focusing them while at the same time decelerating them to improve their energy resolution. Electrons enter through an aperture at a position Ro which is displaced (along the energy dispersion axis) with respect to the commonly used central entrance position at 1/2 (R(1) + R(2)) The analyser has an acceptance energy range of 20% and an energy resolution of 0.9%. An ion-optics trajectory simulation indicates improved focusing properties for this off-center position thus avoiding the need for cumbersome fringing field correction schemes. Test measurements of high resolution projectile Anger spectra produced in 21.7 MeV collisions of F(8+) and F(7+) projectiles with H(2) and He are presented.
Description
Keywords
Subject classification
Citation
Link
<Go to ISI>://000082093100146
http://iopscience.iop.org/1402-4896/1999/T80B/146/pdf/1402-4896_1999_T80B_146.pdf
http://iopscience.iop.org/1402-4896/1999/T80B/146/pdf/1402-4896_1999_T80B_146.pdf
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