A new energy and angle resolving electron spectrometer - First results

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

doi:10.1016/j.elspec.2010.09.009

A new energy and angle resolving electron spectrometer - First results

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

MAX IV Laboratory

Research output: Contribution to journal › Article › peer-review

Abstract

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.

Original language	English
Pages (from-to)	125-131
Journal	Journal of Electron Spectroscopy and Related Phenomena
Volume	183
Issue number	1-3
DOIs	https://doi.org/10.1016/j.elspec.2010.09.009
Publication status	Published - 2011

Subject classification (UKÄ)

Physical Sciences
Natural Sciences

Free keywords

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

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10.1016/j.elspec.2010.09.009

Cite this

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title = "A new energy and angle resolving electron spectrometer - First results",

abstract = "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.",

keywords = "Electron spectrometer, Time of flight, Angular resolution, Two-dimensional band mapping",

author = "Gunnar {\"O}hrwall and P. Karlsson and M. Wirde and M. Lundqvist and Pontus Andersson and D. Ceolin and B. Wannberg and T. Kachel and H. Duerr and W. Eberhardt and S. Svensson",

year = "2011",

doi = "10.1016/j.elspec.2010.09.009",

language = "English",

volume = "183",

pages = "125--131",

journal = "Journal of Electron Spectroscopy and Related Phenomena",

issn = "0368-2048",

publisher = "Elsevier",

number = "1-3",

}

TY - JOUR

T1 - A new energy and angle resolving electron spectrometer - First results

AU - Öhrwall, Gunnar

AU - Karlsson, P.

AU - Wirde, M.

AU - Lundqvist, M.

AU - Andersson, Pontus

AU - Ceolin, D.

AU - Wannberg, B.

AU - Kachel, T.

AU - Duerr, H.

AU - Eberhardt, W.

AU - Svensson, S.

PY - 2011

Y1 - 2011

N2 - 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.

AB - 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.

KW - Electron spectrometer

KW - Time of flight

KW - Angular resolution

KW - Two-dimensional band mapping

U2 - 10.1016/j.elspec.2010.09.009

DO - 10.1016/j.elspec.2010.09.009

M3 - Article

SN - 0368-2048

VL - 183

SP - 125

EP - 131

JO - Journal of Electron Spectroscopy and Related Phenomena

JF - Journal of Electron Spectroscopy and Related Phenomena

IS - 1-3

ER -

A new energy and angle resolving electron spectrometer - First results

Abstract

Subject classification (UKÄ)

Free keywords

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