Inelastic Data Manipulation Testing

Prerequisites

  • Download the ISIS Sample Data

  • Make sure that the data set is on your list of search directories

Elwin tab

Time required 3 - 5 minutes for each

1. Direct data

  1. Go to Interfaces > Inelastic > Data Manipulation

  2. Go to the Elwin tab

  3. Click on Add Workspaces, a dialog window should prompt.

  4. Enter MAR27691_red.nxs in Input file. The table of the dialog should be populated with the MAR2791_red workspace.

  5. Select the workspace from the table and click on Add Data. Close the dialog.

  6. Back on Elwin tab, click Run - this should produce 3 new workspaces _elf, _eq and _eq2

  7. Open the Add Workspaces dialog again, and in Input file choose browse. Navigate to the ISIS-Sample data and select the two files, MAR27691_red.nxs and MAR27698_red.nxs using shift key.

  8. Add the loaded workspaces

  9. Click Run

  10. This should result in three new workspaces again, this time with file ranges as their name

  11. In the main GUI right-click on MAR27691-27698_red_elwin_eq2 and choose Plot Spectrum, choose Plot All

  12. This should plot two lines of \(ln(Counts(microAmp.hour))^{-1}\) vs \(Q2\)

2. Indirect data

  1. Go to Interfaces > Inelastic > Data Manipulation

  2. Click on Add Workspaces, a dialog window should prompt

  3. Enter irs26176_graphite002_red.nxs in Input file. The table of the dialog should be populated with the irs26176_graphite002_red workspace.

  4. Select the workspace from the table and click on Add Data. Close the dialog.

  5. Back on Elwin tab, click Run - this should produce 3 new workspaces _elf, _eq and _eq2

  6. Open the Add Workspaces dialog again, and in Input file choose browse. Navigate to the ISIS-Sample data and select the two files, irs26174_graphite002_red.nxs and irs26176_graphite002_red.nxs using shift key.

  7. Add the loaded workspaces

  8. Change the integration range from -0.2 to 0.2

  9. Click Run

  10. This should result in three new workspaces again, this time with file ranges as their name

  11. In the main GUI right-click on irs26174-26176_graphite002_red_elwin_eq2 and choose Plot Spectrum, choose Plot All

  12. This should plot two lines of \(ln((meV))^{-1}\) vs \(Q2\)

  13. Right-click on the irs26176_graphite002_elwin_eq workspace and Save Nexus; save to a location of your choice; you will use this file in the next test

I(Q, T) tab

Time required 3 - 5 minutes for each

1. Direct data

  1. Go to Interfaces > Inelastic > Data Manipulation

  2. Go to the Iqt tab

  3. Load the MARI27691_sqw.nxs file from the sample data

  4. Load the resolution file MARI27698_sqw.nxs from the sample data

  5. Click Run

  6. A new workspace with the suffix _iqt should appear in the main GUI, it should be a workspace with 17 histograms and 3 bins.

  7. Click Plot Current preview this should plot the same data as the preview window

  8. Choose some workspace indices (e.g. 0-2) in the Output section and click Plot Spectra this should give a plot with the title MARI27691_iqt

  9. Click the down arrow on the Plot Spectra button and then select Plot Tiled. This should give a tiled plot of the selected workspace indices.

2. Indirect data

  1. Go to Interfaces > Inelastic > Data Manipulation

  2. Go to the Iqt tab

  3. Load the irs26176_graphite002_red.nxs file from the sample data

  4. Load the resolution file irs26173_graphite002_res.nxs from the sample data

  5. Click Run

  6. A new workspace with the suffix _iqt should appear in the main GUI, it should be a workspace with 51 histograms and 86 bins. NB keep this workspace for the next test

  7. Click Plot Current preview this should plot the same data as the preview window

  8. Choose some workspace indices (e.g. 0-2) in the Output section and click Plot Spectra this should give a plot with the title irs26176_graphite002_iqt

  9. Click the down arrow on the Plot Spectra button and then select Plot Tiled. This should give a tiled plot of the selected workspace indices.