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Sharper, smaller, brighter: enhanced optical performance at the X06DA‐PXIII beamline after the SLS 2.0 upgrade.

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Title: Sharper, smaller, brighter: enhanced optical performance at the X06DA‐PXIII beamline after the SLS 2.0 upgrade.
Authors: Rösner, Benedikt1 (AUTHOR) benedikt.roesner@psi.ch, Olieric, Vincent1 (AUTHOR), Boege, Michael2 (AUTHOR), Follath, Rolf1 (AUTHOR), Spielmann-Jäggi, Sibylle1 (AUTHOR), Flechsig, Uwe1 (AUTHOR), Lovric, Goran1 (AUTHOR), Mohacsi, Istvan2 (AUTHOR), McAuley, Katherine1 (AUTHOR), Wang, Meitian1 (AUTHOR)
Source: Journal of Synchrotron Radiation. May2026, Vol. 33 Issue 3, p580-584. 5p.
Subjects: X-ray optics, Optical resolution, Light sources, Protein crystallography, Electron beams
Abstract: The X06DA‐PXIII beamline is a crystallography beamline on a superbend magnet at the Swiss Light Source. Since 2008, it has served the scientific community, contributing to 2650 Protein Data Bank structures as of today (i.e. before the SLS shutdown started in autumn 2023). Just before the upgrade of the storage ring, the beamline has been rebuilt with new X‐ray optics to exploit the full potential of SLS 2.0. Its new design aims for a unique position in macromolecular crystallography beamlines worldwide: it exploits the excellent electron beam properties of small sizes below 10 µm, uses a toroidal mirror close to the source to harvest a large solid angle of the bending magnet beam, minimizes toroidal aberration with a horizontal 1:2 focusing concept and finally utilizes a high‐quality Kirkpatrick–Baez mirror system to focus the beam onto the sample. Herein, we describe the beamline's optical performance during first commissioning and demonstrate how the reduced emittance of the new storage ring improves its focusing capabilities and overall efficiency. [ABSTRACT FROM AUTHOR]
Copyright of Journal of Synchrotron Radiation is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: Sharper, smaller, brighter: enhanced optical performance at the X06DA‐PXIII beamline after the SLS 2.0 upgrade.
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  Data: <searchLink fieldCode="AR" term="%22Rösner%2C+Benedikt%22">Rösner, Benedikt</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> benedikt.roesner@psi.ch</i><br /><searchLink fieldCode="AR" term="%22Olieric%2C+Vincent%22">Olieric, Vincent</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Boege%2C+Michael%22">Boege, Michael</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Follath%2C+Rolf%22">Follath, Rolf</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Spielmann-Jäggi%2C+Sibylle%22">Spielmann-Jäggi, Sibylle</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Flechsig%2C+Uwe%22">Flechsig, Uwe</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Lovric%2C+Goran%22">Lovric, Goran</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Mohacsi%2C+Istvan%22">Mohacsi, Istvan</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22McAuley%2C+Katherine%22">McAuley, Katherine</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Wang%2C+Meitian%22">Wang, Meitian</searchLink><relatesTo>1</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Synchrotron+Radiation%22">Journal of Synchrotron Radiation</searchLink>. May2026, Vol. 33 Issue 3, p580-584. 5p.
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  Data: <searchLink fieldCode="DE" term="%22X-ray+optics%22">X-ray optics</searchLink><br /><searchLink fieldCode="DE" term="%22Optical+resolution%22">Optical resolution</searchLink><br /><searchLink fieldCode="DE" term="%22Light+sources%22">Light sources</searchLink><br /><searchLink fieldCode="DE" term="%22Protein+crystallography%22">Protein crystallography</searchLink><br /><searchLink fieldCode="DE" term="%22Electron+beams%22">Electron beams</searchLink>
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  Data: The X06DA‐PXIII beamline is a crystallography beamline on a superbend magnet at the Swiss Light Source. Since 2008, it has served the scientific community, contributing to 2650 Protein Data Bank structures as of today (i.e. before the SLS shutdown started in autumn 2023). Just before the upgrade of the storage ring, the beamline has been rebuilt with new X‐ray optics to exploit the full potential of SLS 2.0. Its new design aims for a unique position in macromolecular crystallography beamlines worldwide: it exploits the excellent electron beam properties of small sizes below 10 µm, uses a toroidal mirror close to the source to harvest a large solid angle of the bending magnet beam, minimizes toroidal aberration with a horizontal 1:2 focusing concept and finally utilizes a high‐quality Kirkpatrick–Baez mirror system to focus the beam onto the sample. Herein, we describe the beamline's optical performance during first commissioning and demonstrate how the reduced emittance of the new storage ring improves its focusing capabilities and overall efficiency. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Journal of Synchrotron Radiation is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1107/S1600577526001992
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        PageCount: 5
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      – SubjectFull: X-ray optics
        Type: general
      – SubjectFull: Optical resolution
        Type: general
      – SubjectFull: Light sources
        Type: general
      – SubjectFull: Protein crystallography
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      – SubjectFull: Electron beams
        Type: general
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      – TitleFull: Sharper, smaller, brighter: enhanced optical performance at the X06DA‐PXIII beamline after the SLS 2.0 upgrade.
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            – D: 01
              M: 05
              Text: May2026
              Type: published
              Y: 2026
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