Ticket #4580 (closed: fixed)
NormaliseToMonitor option for MonitorWorkspace with more than 1 spectrum
| Reported by: | Vickie Lynch | Owned by: | Vickie Lynch |
|---|---|---|---|
| Priority: | major | Milestone: | Release 2.1 |
| Component: | Mantid | Keywords: | |
| Cc: | Blocked By: | ||
| Blocking: | Tester: | Shelly Ren |
Description
TOPAZ monitor workspaces have downstream and upstream monitors so SNS needs option to choose which monitor for normalization.
Change History
comment:2 Changed 9 years ago by Vickie Lynch
Refs #4580 MonitorWorkspaceSpectrum option
Changeset: f6e65733556c8a3d26597e1f143f738d0bf9bc81
comment:3 Changed 9 years ago by Vickie Lynch
- Status changed from accepted to verify
- Resolution set to fixed
comment:4 Changed 8 years ago by Shelly Ren
- Status changed from verify to verifying
- Tester set to Shelly Ren
comment:5 Changed 8 years ago by Shelly Ren
- Status changed from verifying to closed
Tested TOPAZ run 3676. Ran loadEventNexus via MantidPlot with fileName = 'TOPAZ3676', OutputWorkspace='top',LoadMonitors='1',MonitorsAsEvents='1'. Then ran NormaliseToMonitor(InputWorkspace='top',OutputWorkspace='top_0',MonitorWorkspace='top_monitors') and NormaliseToMonitor(InputWorkspace='top',OutputWorkspace='top_1',MonitorSpectrum='1', MonitorWorkspace='top_monitors') respectively.
The difference between the two NormaliseToMonitor calls is the value of MontiorSpectrum. It was set to 0 in the first call, and 1 in the 2nd call. TOPAZ has 2 monitors but only the downstream monitor has data. Therefore, when I tried "show instruments" from the output workspace having the upstream monitor, the MantidPlot showed an error message "The workspace contains values that cannot be displayed" while it looked fine in the output workspace having the downstream monitor. With this fix, SNS has the option to choose which monitor for normalization.
