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Synchronized Non-Linear Motion Trajectories of the SCANIA-2D Spectrometer at the Balder Beamline, MAX IV Laboratory

Alcocer, M. J.P. LU ; Enquist, H. LU orcid ; Murari, J. LU ; Freitas ; Sigfridsson Clauss, K. LU ; Just, J. LU orcid ; Ramakrishnan, M. LU ; Sjöblom, P. LU orcid and Klementiev, K. LU (2025) 15th International Conference on Synchrotron Radiation Instrumentation, SRI 2024 In Journal of Physics: Conference Series 3010(1).
Abstract

Beamline end-stations often require components to move along non-trivial multi-dimensional trajectories in order to fulfill experimental requirements. These trajectories can frequently be realised through well synchronized combined motion of multiple axes with single degrees of freedom, such as linear and rotational actuators. A good example of this is the SCANIA-2D (Segmented Crystal Analyzer with Image Acquisition in 2D) x-ray emission spectrometer at the Balder beamline, MAX IV synchrotron. Here, five motorized axes are combined to precisely position the crystal assembly and area detector of a Rowland circle geometry x-ray emission spectrometer. Precise positioning is required in order to allow Johansson (ground-bent) crystals to be... (More)

Beamline end-stations often require components to move along non-trivial multi-dimensional trajectories in order to fulfill experimental requirements. These trajectories can frequently be realised through well synchronized combined motion of multiple axes with single degrees of freedom, such as linear and rotational actuators. A good example of this is the SCANIA-2D (Segmented Crystal Analyzer with Image Acquisition in 2D) x-ray emission spectrometer at the Balder beamline, MAX IV synchrotron. Here, five motorized axes are combined to precisely position the crystal assembly and area detector of a Rowland circle geometry x-ray emission spectrometer. Precise positioning is required in order to allow Johansson (ground-bent) crystals to be used, thereby enabling both high efficiency and high resolution operation. The motion of the five independent motorized axes is combined into an overall crystal assembly and detector trajectory parameterized by just two variables; Bragg angle, θ, and in-Rowland-circle shift, "z. These two parameters are the primary user interface to the spectrometer, from which the constituent motorized axes positions are determined. Motion control is implemented using the IcePAP motion controller. This provides independent closed-loop operation of the constituent axes, as well as synchronized motion along the trajectory defined by θ and "z. Constituent axis positions are dynamically computed by IcePAP from commanded positions in θ, greatly facilitating user operation. Trajectory configuration, scanning, and data acquisition are provided by the Tango control system orchestrated by Sardana.

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author
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organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Journal of Physics: Conference Series
volume
3010
issue
1
article number
012166
publisher
IOP Publishing
conference name
15th International Conference on Synchrotron Radiation Instrumentation, SRI 2024
conference location
Hamburg, Germany
conference dates
2024-08-26 - 2024-08-30
external identifiers
  • scopus:105007979274
ISSN
1742-6588
DOI
10.1088/1742-6596/3010/1/012166
language
English
LU publication?
yes
additional info
Publisher Copyright: © Published under licence by IOP Publishing Ltd.
id
ef51da36-2714-4259-a9ec-7b64012e043d
date added to LUP
2025-07-24 11:27:48
date last changed
2025-08-07 09:38:29
@article{ef51da36-2714-4259-a9ec-7b64012e043d,
  abstract     = {{<p>Beamline end-stations often require components to move along non-trivial multi-dimensional trajectories in order to fulfill experimental requirements. These trajectories can frequently be realised through well synchronized combined motion of multiple axes with single degrees of freedom, such as linear and rotational actuators. A good example of this is the SCANIA-2D (Segmented Crystal Analyzer with Image Acquisition in 2D) x-ray emission spectrometer at the Balder beamline, MAX IV synchrotron. Here, five motorized axes are combined to precisely position the crystal assembly and area detector of a Rowland circle geometry x-ray emission spectrometer. Precise positioning is required in order to allow Johansson (ground-bent) crystals to be used, thereby enabling both high efficiency and high resolution operation. The motion of the five independent motorized axes is combined into an overall crystal assembly and detector trajectory parameterized by just two variables; Bragg angle, θ, and in-Rowland-circle shift, "z. These two parameters are the primary user interface to the spectrometer, from which the constituent motorized axes positions are determined. Motion control is implemented using the IcePAP motion controller. This provides independent closed-loop operation of the constituent axes, as well as synchronized motion along the trajectory defined by θ and "z. Constituent axis positions are dynamically computed by IcePAP from commanded positions in θ, greatly facilitating user operation. Trajectory configuration, scanning, and data acquisition are provided by the Tango control system orchestrated by Sardana.</p>}},
  author       = {{Alcocer, M. J.P. and Enquist, H. and Murari, J. and Freitas and Sigfridsson Clauss, K. and Just, J. and Ramakrishnan, M. and Sjöblom, P. and Klementiev, K.}},
  issn         = {{1742-6588}},
  language     = {{eng}},
  number       = {{1}},
  publisher    = {{IOP Publishing}},
  series       = {{Journal of Physics: Conference Series}},
  title        = {{Synchronized Non-Linear Motion Trajectories of the SCANIA-2D Spectrometer at the Balder Beamline, MAX IV Laboratory}},
  url          = {{http://dx.doi.org/10.1088/1742-6596/3010/1/012166}},
  doi          = {{10.1088/1742-6596/3010/1/012166}},
  volume       = {{3010}},
  year         = {{2025}},
}