2019 December Release

[wdzhou]

Mid-October Instrument Commission Release

The purpose for this pre-release is to support HB2B instrument commission with limited but necessary features. There are three major features that are required by the instrument team.

1. Reduction and auto reduction

   • [x] Convert NeXus file to Hidra project file #85, #88
   • [x] Reduce raw data from Hidra project file to diffraction data and save to Hidra project file.
   • [ ] Masking #208
   • [ ] Final check with auto reduction #95
   • [ ] Export calibrated geometry to Hidra project file #86

2. Manual reduction UI (front end + back-end)

   • [ ] Write manual reduction GUI #126
   • [ ] Test manual reduction GUI
   • [ ] Read and write wave length, mask and efficiency #93

3. Instrument geometry and wave length calibration

   • [ ] @wdzhou will work with @fanchercm #72

4. Peak fitting (back-end)

   • [x] Calculate effective peak parameters' value #89
   • [x] Export peak fitting result #87

5. Peak fitting (front-end)

   • [ ] Import user specified peak positions and names #96
   • [ ] Export reduction and peak fitting summary #97, #202
   • [ ] Test peak fitting UI #74

Hydra Project File (Back-end)

• [ ] Design, including preparing documentation of, Hydra (HB2B) experiment project file #65
• [x] Read and write neutron counts
• [ ] Read and write instrument geometry calibration and wave length calibration #86
• [x] Read and write 2theta-counts and d-spacing-counts
• [ ] Read and write peak fitting information #87
  • In progress
• [x] Read and write sample logs #88
• [x] Read and write instrument geometry parameters #93
• [ ] Read and write pole figure

Reduction (Back-end)

• [x] Reduce (convert to 2theta and d-spacing) testing data from Hydra project file
• [x] Export reduced data to Hydra project file

Reduction (Front-end)

• [x] Auto-reduction script to convert NeXus to Hidra project file #85
• [ ] Re-reduction UI supports to import, reduce and export raw data from Hydra project file #75
  • In test
• [ ] Re-reduction UI supports visualization #75
  • In test

Instrument Geometry and Wavelength Calibration

• [x] Prepare X-ray data in Hydra format
• [x] Script read to calibrate geometry for X-ray data
• [ ] Export calibrated geometry to geometry file
• [x] Prepare HZB data in Hydra format
• [x] Develop a calibration algorithm to calibrate HZB geometry
• [x] Generate a general calibration script #72

Peak Fitting (Back-end)

• [x] Refactoring for latest improvements on data structure and file format #74.
  • In progress
• [x] Calculate effective peak parameters #89.
• [ ] Improve API to export fitted peak parameters' value and error to front-end.
  • In progress
• [x] Peak fitting (including UI) supports to export peak fitting result to Hydra project file.

Peak Fitting (Front-end)

• [ ] Workflow test from importing Hidra project file to visualizing fitting result #74.
  • In progress
• [ ] Show both native and effective peak parameters in peak fitting window #69.
• [ ] Show fitting error in peak fitting window #70.
• [ ] Peak fitting (including UI) supports to import 2theta/d-spacing-count data from Hydra project file.
• [ ] Visualize peak fitting result in contour plot.
• [ ] Peak fitting (including UI) supports to export peak fitting result to Hydra project file.

Texture (Back-end)

• [ ] Refactor codes and methods for latest data structure and file format implemented PyRS.
• [ ] Solid angle calculation for all pixels
• [ ] Create detector masks dynamically according to solid angle.
• [ ] Texture analysis incorporates Chris' algorithm.
• [ ] Texture analysis imports data from Hydra project file.
• [ ] Texture analysis saves pole figures to Hydra project file.

Texture (front-end)

• [ ] Texture UI plots peak fitting residual in a different figure.
• [ ] Test workflow to import data/generate masks/fit peaks/pole figure calculation/export

Strain/stress (Back-end)

Strain/stress (Front-end)

[jefrbunn]

as part of the reduction, you can use Run 931 as a Vanadium Flood to normalize the data

[peterfpeterson]

This is being closed and replaced with a project board