Improving the energy resolution of a hemispherical spectrograph using a paracentric entry at a non-zero potential
| dc.contributor.author | Benis, E. P. | en |
| dc.contributor.author | Zouros, T. J. M. | en |
| dc.date.accessioned | 2015-11-24T18:27:07Z | |
| dc.date.available | 2015-11-24T18:27:07Z | |
| dc.identifier.issn | 0168-9002 | - |
| dc.identifier.uri | https://olympias.lib.uoi.gr/jspui/handle/123456789/15989 | |
| dc.rights | Default Licence | - |
| dc.subject | electron spectroscopy | en |
| dc.subject | hemispherical spectrometers | en |
| dc.subject | fringing field corrections | en |
| dc.subject | position-sensitive detectors | en |
| dc.subject | esca | en |
| dc.subject | loss spectrometer | en |
| dc.subject | electron | en |
| dc.title | Improving the energy resolution of a hemispherical spectrograph using a paracentric entry at a non-zero potential | en |
| heal.abstract | We demonstrate by ray tracing analysis that the focusing properties of a hemispherical spectrograph depend critically on the placement of the electron entrance position R(0) and the value of the potential V(0) at R(0). Improvements over conventional spectrographs using R(0) = (R) over bar, the mean radius and V(0) = 0 are predicted for particular combinations of R(0) and V(0). A spectrograph with (R) over bar = 101.6 mm and an entrance at R(0) = 82.55 mm using a zoom lens and a two-dimensional position sensitive detector (2D-PSD) with 40 mm multichannel plates and resistive anode encoder has been used to confirm the predicted qualitative behaviour. These results suggest that improvement in energy resolution may be attained without the use of fringing field correctors. (C) 2000 Elsevier Science B.V. All rights reserved. | en |
| heal.access | campus | - |
| heal.fullTextAvailability | TRUE | - |
| heal.identifier.primary | Doi 10.1016/S0168-9002(99)00954-7 | - |
| heal.identifier.secondary | <Go to ISI>://000085077600021 | - |
| heal.identifier.secondary | http://ac.els-cdn.com/S0168900299009547/1-s2.0-S0168900299009547-main.pdf?_tid=8b3e4ce2-4de8-11e3-9a5d-00000aacb362&acdnat=1384514871_7bf18fc797e091a8a2cd7b657bb088a1 | - |
| heal.journalName | Nuclear Instruments & Methods in Physics Research Section a-Accelerators Spectrometers Detectors and Associated Equipment | en |
| heal.journalType | peer reviewed | - |
| heal.language | en | - |
| heal.publicationDate | 2000 | - |
| heal.recordProvider | Πανεπιστήμιο Ιωαννίνων. Σχολή Επιστημών και Τεχνολογιών. Τμήμα Βιολογικών Εφαρμογών και Τεχνολογιών | el |
| heal.type | journalArticle | - |
| heal.type.el | Άρθρο Περιοδικού | el |
| heal.type.en | Journal article | en |
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