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The VENUS construction project ended in August 2024 and was followed by the commissioning of the beamline. The beamline is located at the Spallation Neutron Source of the Oak Ridge National Laboratory. VENUS uniquely utilizes the intrinsic properties of the neutron source to measure wavelength-dependent imaging data. Since neutron wavelength-dependent imaging is a relatively recent technique, software development is required to reduce and analyze data. Thus, we implemented the application iBeatles, a python-based software capable of fitting Bragg edges and producing strain maps in 2 dimensions. This manuscript addresses new and optimized features suggested by the scientific community during the 11th NEUtron-WAVElength dependent workshop. The manuscript also presents the new user interface.

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iBeatles: Bragg Edge Imaging Software for the VENUS Beamline at the Spallation Neutron Source

  • 会议论文

  • 出版模式：

    开放获取

  • 发表日期：

    2026年

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  • Jean C. Bilheux,
  • Hassina Z. Bilheux

摘要

The VENUS construction project ended in August 2024 and was followed by the commissioning of the beamline. The beamline is located at the Spallation Neutron Source of the Oak Ridge National Laboratory. VENUS uniquely utilizes the intrinsic properties of the neutron source to measure wavelength-dependent imaging data. Since neutron wavelength-dependent imaging is a relatively recent technique, software development is required to reduce and analyze data. Thus, we implemented the application iBeatles, a python-based software capable of fitting Bragg edges and producing strain maps in 2 dimensions. This manuscript addresses new and optimized features suggested by the scientific community during the 11th NEUtron-WAVElength dependent workshop. The manuscript also presents the new user interface.