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A rotatable electron spectrometer for multicoincidence experiments

Céolin, Denis LU ; Forsell, J-O; Wannberg, B.; Legendre, Sébastien LU ; Palaudoux, Jérome LU ; Öhrwall, Gunnar LU ; Svensson, S. and Piancastelli, M. N. (2010) In Review of Scientific Instruments 81(6).
Abstract
We have developed a rotatable hemispherical spectrometer with good energy and angular resolution, which can be positioned with the lens axis arbitrarily within a solid angle of 1 pi. The collection angle of the emitted electrons with respect to the polarization axis of the light is set by means of a three-axes goniometer, operating under vacuum. An important requirement for this setup was the possibility to perform coincidences between the electron analyzed by the spectrometer and one or several other particles, such as ions, electrons, or photons. The lens system and the hemispheres have been designed to accommodate such experimental demands, regarding parameters such as the resolving power, the acceptance angle, or the width of the... (More)
We have developed a rotatable hemispherical spectrometer with good energy and angular resolution, which can be positioned with the lens axis arbitrarily within a solid angle of 1 pi. The collection angle of the emitted electrons with respect to the polarization axis of the light is set by means of a three-axes goniometer, operating under vacuum. An important requirement for this setup was the possibility to perform coincidences between the electron analyzed by the spectrometer and one or several other particles, such as ions, electrons, or photons. The lens system and the hemispheres have been designed to accommodate such experimental demands, regarding parameters such as the resolving power, the acceptance angle, or the width of the kinetic energy window which can be recorded for a given pass energy. We have chosen to detect the impact position of the electron at the focal plane of the hemispherical analyzer with a delay line detector and a time-to-digital converter as acquisition card rather than using a conventional charge-coupled device camera. (C) 2010 American Institute of Physics. [doi: 10.1063/1.3449333] (Less)
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organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Review of Scientific Instruments
volume
81
issue
6
publisher
American Institute of Physics
external identifiers
  • wos:000280102200012
  • scopus:77954190367
ISSN
1089-7623
DOI
10.1063/1.3449333
language
English
LU publication?
yes
id
a0745630-c41c-4621-a897-899e110958cb (old id 1654790)
date added to LUP
2010-08-25 15:24:47
date last changed
2018-05-29 11:44:47
@article{a0745630-c41c-4621-a897-899e110958cb,
  abstract     = {We have developed a rotatable hemispherical spectrometer with good energy and angular resolution, which can be positioned with the lens axis arbitrarily within a solid angle of 1 pi. The collection angle of the emitted electrons with respect to the polarization axis of the light is set by means of a three-axes goniometer, operating under vacuum. An important requirement for this setup was the possibility to perform coincidences between the electron analyzed by the spectrometer and one or several other particles, such as ions, electrons, or photons. The lens system and the hemispheres have been designed to accommodate such experimental demands, regarding parameters such as the resolving power, the acceptance angle, or the width of the kinetic energy window which can be recorded for a given pass energy. We have chosen to detect the impact position of the electron at the focal plane of the hemispherical analyzer with a delay line detector and a time-to-digital converter as acquisition card rather than using a conventional charge-coupled device camera. (C) 2010 American Institute of Physics. [doi: 10.1063/1.3449333]},
  author       = {Céolin, Denis and Forsell, J-O and Wannberg, B. and Legendre, Sébastien and Palaudoux, Jérome and Öhrwall, Gunnar and Svensson, S. and Piancastelli, M. N.},
  issn         = {1089-7623},
  language     = {eng},
  number       = {6},
  publisher    = {American Institute of Physics},
  series       = {Review of Scientific Instruments},
  title        = {A rotatable electron spectrometer for multicoincidence experiments},
  url          = {http://dx.doi.org/10.1063/1.3449333},
  volume       = {81},
  year         = {2010},
}