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A new energy and angle resolving electron spectrometer - First results

Author

  • Gunnar Öhrwall
  • P. Karlsson
  • M. Wirde
  • M. Lundqvist
  • Pontus Andersson
  • D. Ceolin
  • B. Wannberg
  • T. Kachel
  • H. Duerr
  • W. Eberhardt
  • S. Svensson

Summary, in English

A new energy and angle resolved analyzer for photoelectron spectroscopy is described. This analyzer is based on combining an advanced focusing electron lens system with time-of-flight measurements. A position sensitive detector gives time and position for the electron events. From this information the kinetic energy and start direction are obtained through a transformation procedure, giving both a large luminosity and a very high energy resolution. The instrument analyses the angles of emission of the electrons in a cone with 30 degrees opening angle and simulations show that extremely high energy and angular resolution can be achieved simultaneously. We report the first results from this instrument, obtained at the PM-3 beam line at BESSY (Berlin, Germany). This analyzer opens up new possibilities for angular resolved electron spectroscopy, band-mapping and other applications. (C) 2010 Elsevier B.V. All rights reserved.

Department/s

Publishing year

2011

Language

English

Pages

125-131

Publication/Series

Journal of Electron Spectroscopy and Related Phenomena

Volume

183

Issue

1-3

Document type

Journal article

Publisher

Elsevier

Topic

  • Physical Sciences
  • Natural Sciences

Keywords

  • Electron spectrometer
  • Time of flight
  • Angular resolution
  • Two-dimensional band mapping

Status

Published

ISBN/ISSN/Other

  • ISSN: 0368-2048