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The 10 m collimated Rowland spectrometer at the MAX IV Veritas beamline

Agåker, Marcus LU ; Englund, Carl Johan ; Ekholm, Victor LU ; Kjellsson, Ludvig LU ; Sjöblom, Peter LU orcid ; Pickworth, Louisa LU ; Söderström, Johan ; Johansson, Niklas ; Ghosh, Anirudha LU and Tokushima, Takashi LU orcid , et al. (2025) In Journal of Synchrotron Radiation 32(5).
Abstract

A grazing-incidence Rowland spectrometer with a collimating element for resonant inelastic soft X-ray scattering at the Veritas beamline at MAX IV, Lund, Sweden, is presented. The instrument is designed to operate in the 250-950 eV range, providing >30000 resolving power in first order. The inherent temporal resolution of the delay-line detector enables time-resolved experiments on the 270 ps time-scale and also allows for so-called time-gating which significantly improves the signal-to-noise ratio. The instrument is able to rotate around the sample position in the horizontal plane, which enables measurements of the momentum transfer in the X-ray scattering event. The instrument is prepared for installation of a polarimeter to... (More)

A grazing-incidence Rowland spectrometer with a collimating element for resonant inelastic soft X-ray scattering at the Veritas beamline at MAX IV, Lund, Sweden, is presented. The instrument is designed to operate in the 250-950 eV range, providing >30000 resolving power in first order. The inherent temporal resolution of the delay-line detector enables time-resolved experiments on the 270 ps time-scale and also allows for so-called time-gating which significantly improves the signal-to-noise ratio. The instrument is able to rotate around the sample position in the horizontal plane, which enables measurements of the momentum transfer in the X-ray scattering event. The instrument is prepared for installation of a polarimeter to provide full characterization of energy, momentum and polarization of the scattered photons. The design is evaluated using spectral measurements, ray-tracing, vibration and motion measurements.

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organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Journal of Synchrotron Radiation
volume
32
issue
5
publisher
International Union of Crystallography
external identifiers
  • pmid:40698855
ISSN
1600-5775
DOI
10.1107/S1600577525005478
language
English
LU publication?
yes
additional info
open access.
id
984747d4-a583-4eaf-b4fb-ef6197866ed1
date added to LUP
2025-07-24 11:26:09
date last changed
2025-08-07 09:32:26
@article{984747d4-a583-4eaf-b4fb-ef6197866ed1,
  abstract     = {{<p>A grazing-incidence Rowland spectrometer with a collimating element for resonant inelastic soft X-ray scattering at the Veritas beamline at MAX IV, Lund, Sweden, is presented. The instrument is designed to operate in the 250-950 eV range, providing &gt;30000 resolving power in first order. The inherent temporal resolution of the delay-line detector enables time-resolved experiments on the 270 ps time-scale and also allows for so-called time-gating which significantly improves the signal-to-noise ratio. The instrument is able to rotate around the sample position in the horizontal plane, which enables measurements of the momentum transfer in the X-ray scattering event. The instrument is prepared for installation of a polarimeter to provide full characterization of energy, momentum and polarization of the scattered photons. The design is evaluated using spectral measurements, ray-tracing, vibration and motion measurements.</p>}},
  author       = {{Agåker, Marcus and Englund, Carl Johan and Ekholm, Victor and Kjellsson, Ludvig and Sjöblom, Peter and Pickworth, Louisa and Söderström, Johan and Johansson, Niklas and Ghosh, Anirudha and Tokushima, Takashi and Caputo, Marco and Forsberg, Johan and Felcsuti, Gábor and Fredriksson, Pierre and Malki, Suleyman and Wassdahl, Nial and Såthe, Conny and Rubensson, Jan Erik}},
  issn         = {{1600-5775}},
  language     = {{eng}},
  month        = {{09}},
  number       = {{5}},
  publisher    = {{International Union of Crystallography}},
  series       = {{Journal of Synchrotron Radiation}},
  title        = {{The 10 m collimated Rowland spectrometer at the MAX IV Veritas beamline}},
  url          = {{http://dx.doi.org/10.1107/S1600577525005478}},
  doi          = {{10.1107/S1600577525005478}},
  volume       = {{32}},
  year         = {{2025}},
}