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Understanding the mechanical limitations of the performance of soft X-ray monochromators at MAX IV laboratory

Sjöblom, Peter LU orcid ; Todorescu, Gabriela LU and Urpelainen, Samuli LU (2020) In Journal of Synchrotron Radiation 27(Pt 2). p.272-283
Abstract

MAX IV is a fourth-generation, or diffraction-limited, synchrotron light source with a number of state-of-the-art beamlines. The performance of a beamline is, to a high degree, set by the energy resolution it can achieve, which in turn is governed to a large extent by the monochromator. During the design phase of a monochromator, the mechanical requirements must be fully understood and met with margin. During commissioning, the performance must be verified and optimized. In this paper, six soft X-ray monochromators at MAX IV beamlines (Bloch, Veritas, HIPPIE, SPECIES, FinEstBeAMS and SoftiMAX) are examined with a focus on their resolving power, energy range and the time required to change measurement range, as those parameters are... (More)

MAX IV is a fourth-generation, or diffraction-limited, synchrotron light source with a number of state-of-the-art beamlines. The performance of a beamline is, to a high degree, set by the energy resolution it can achieve, which in turn is governed to a large extent by the monochromator. During the design phase of a monochromator, the mechanical requirements must be fully understood and met with margin. During commissioning, the performance must be verified and optimized. In this paper, six soft X-ray monochromators at MAX IV beamlines (Bloch, Veritas, HIPPIE, SPECIES, FinEstBeAMS and SoftiMAX) are examined with a focus on their resolving power, energy range and the time required to change measurement range, as those parameters are dependent on each other. The monochromators have a modern commercial design, planned and developed in close collaboration with the vendors. This paper aims to present the current status of the commissioning at MAX IV with emphasis on elucidating the mechanical limitations on the performance of the monochromators. It contains analysis of the outcome and our approach to achieve fast and high-resolution monochromators.

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author
; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
dispersion, fixed focus constant, monochromator, motion, ultra-high resolution
in
Journal of Synchrotron Radiation
volume
27
issue
Pt 2
pages
12 pages
publisher
International Union of Crystallography
external identifiers
  • scopus:85081651104
  • pmid:32153266
ISSN
1600-5775
DOI
10.1107/S1600577520000843
language
English
LU publication?
yes
id
aaf16e62-cf01-4af7-9bf1-89e14770ca4e
date added to LUP
2020-03-11 18:56:27
date last changed
2024-06-12 11:13:55
@article{aaf16e62-cf01-4af7-9bf1-89e14770ca4e,
  abstract     = {{<p>MAX IV is a fourth-generation, or diffraction-limited, synchrotron light source with a number of state-of-the-art beamlines. The performance of a beamline is, to a high degree, set by the energy resolution it can achieve, which in turn is governed to a large extent by the monochromator. During the design phase of a monochromator, the mechanical requirements must be fully understood and met with margin. During commissioning, the performance must be verified and optimized. In this paper, six soft X-ray monochromators at MAX IV beamlines (Bloch, Veritas, HIPPIE, SPECIES, FinEstBeAMS and SoftiMAX) are examined with a focus on their resolving power, energy range and the time required to change measurement range, as those parameters are dependent on each other. The monochromators have a modern commercial design, planned and developed in close collaboration with the vendors. This paper aims to present the current status of the commissioning at MAX IV with emphasis on elucidating the mechanical limitations on the performance of the monochromators. It contains analysis of the outcome and our approach to achieve fast and high-resolution monochromators.</p>}},
  author       = {{Sjöblom, Peter and Todorescu, Gabriela and Urpelainen, Samuli}},
  issn         = {{1600-5775}},
  keywords     = {{dispersion; fixed focus constant; monochromator; motion; ultra-high resolution}},
  language     = {{eng}},
  month        = {{03}},
  number       = {{Pt 2}},
  pages        = {{272--283}},
  publisher    = {{International Union of Crystallography}},
  series       = {{Journal of Synchrotron Radiation}},
  title        = {{Understanding the mechanical limitations of the performance of soft X-ray monochromators at MAX IV laboratory}},
  url          = {{http://dx.doi.org/10.1107/S1600577520000843}},
  doi          = {{10.1107/S1600577520000843}},
  volume       = {{27}},
  year         = {{2020}},
}