SESANS Reproducibility Working Group

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Revision as of 13:07, 14 August 2023 by Gnsmith (talk | contribs) (→‎News and Status: Extraneous link deleted.)

The spin-echo SANS (SESANS) working group is a subgroup of the canSAS Reproducibility and Reliability Working Group.


Spin-echo small-angle neutron scattering (SESANS) is a variant of small-angle neutron scattering that uses the Larmor precession of polarised neutrons to study the structure of materials in real space and up to length scales of some ten micrometer.

The mission of this group is to achieve SESANS measurements that provide data on an absolute scale independent from the used instrument. They do this by discussing the development of standard calibration samples and considering issues of reproducibility between different instruments, ensuring that data are trustworthy, reliable, and comparable.


  • Wim Bouwman (TU Delft)
  • Robert Dalgliesh (ISIS Neutron and Muon Source)
  • Henrich Frielinghaus (Jülich Centre for Neutron Science, MLZ)
  • Fankang Li (Oak Ridge National Laboratory)
  • Andrew Parnell (The University of Sheffield)
  • Steven Parnell (TU Delft)
  • Roger Pynn (Indiana University Bloomington)
  • Gregory Smith (Chair, ISIS Neutron and Muon Source)

News and Status

  • 16 June 2023: Discussion of recent reproducibility measurements and possible future events. Minutes
  • 20 January 2023: Discussion of recent test measurements and data analysis. Minutes
  • 13 September 2022: Working group introduced to canSAS members at canSAS-XII. Presentation
  • 30 November 2021: Discussion of recent measurements of possible standard samples and plans for next test measurements. Minutes
  • 22 March 2021: Inaugural meeting of the group. Minutes

Data Repository

Data from possible standards can be shared on the working group's Zenodo community.

Data will be reviewed to ensure that they comply with current file standards (*.ses) before acceptance.

SESANS Instruments

Mailing List

The Working Group maintains a mailing list to provide updates on activities and relevant data. You can subscribe to this at the JiscMail mailing list sign up form.