Ticket #2161 (closed: fixed)
SANS: Decide if SNS Q error Implement matches well ISIS data
| Reported by: | Nick Draper | Owned by: | Anders Markvardsen |
|---|---|---|---|
| Priority: | critical | Milestone: | Release 3.3 |
| Component: | SANS | Keywords: | |
| Cc: | Richard.heenan@… | Blocked By: | |
| Blocking: | Tester: | Harry Jeffery |
Description (last modified by Anders Markvardsen) (diff)
This will need to look at all of the detectors contributing to the Q pixel to calculate boundary uncertainties, we will have to think about
- how to claculate the errors (with Richards help)
- Where to store and display them
Attachments
Change History
comment:2 Changed 9 years ago by Nick Draper
- Milestone changed from Iteration 29 to Iteration 30
"New" tickets moved at the code freeze of iteration 29
comment:3 Changed 9 years ago by Steve Williams
- Status changed from new to assigned
- Owner changed from Steve Williams to Anders Markvardsen
- Summary changed from Calculate uncertainties for Qx and Qy bins to Calculate uncertainties for Qx and Qy bins (Q resolution)
This is the Q resolution which Mathieu Doucet has done some work on. The resolution is saved in MatrixWorkspace::dataDx() and maybe displayed as a horizontal errorbar.
comment:4 Changed 9 years ago by Nick Draper
- Milestone changed from Iteration 30 to Iteration 31
Bulk move of tickets to iteration 31 at the iteration 30 code freeze
comment:5 Changed 9 years ago by Anders Markvardsen
- Summary changed from Calculate uncertainties for Qx and Qy bins (Q resolution) to SANS: Calculate uncertainties for Qx and Qy bins (Q resolution)
comment:6 Changed 9 years ago by Anders Markvardsen
- Status changed from assigned to accepted
- Summary changed from SANS: Calculate uncertainties for Qx and Qy bins (Q resolution) to SANS: Decide if SNS Q error Implement matches well ISIS data
Mathieu explained how the SNS Q resolution error calculation works. Info passed on to Richard including paper. ISIS SANS needs to decide if this approach of calculating Q errors is suitable for ISIS SANS data.
comment:7 Changed 9 years ago by Anders Markvardsen
Additional docs provided by Richard to read. Included the attached doc with title "Q Resolution on LOQ at ISIS" written by Richard
comment:8 Changed 9 years ago by Nick Draper
- Milestone changed from Iteration 32 to Iteration 33
Moved to iteration 33 at iteration 32 code freeze
comment:9 Changed 8 years ago by Nick Draper
- Milestone changed from Release 2.1 to Release 2.2
Moved at end of release 2.1
comment:10 Changed 8 years ago by Nick Draper
- Milestone changed from Release 2.2 to Release 2.3
Moved at the end of release 2.2
comment:11 Changed 8 years ago by Nick Draper
- Milestone changed from Release 2.3 to Release 2.4
moved to Release 2.4
comment:12 Changed 8 years ago by Nick Draper
- Milestone changed from Release 2.4 to Release 2.5
Moved at the code freeze for release 2.4
comment:13 Changed 7 years ago by Nick Draper
- Milestone changed from Release 2.5 to Release 2.6
comment:17 Changed 7 years ago by Nick Draper
- Milestone changed from Release 2.6 to Backlog
Moved to backlog at the code freeze for R2.6
comment:18 Changed 7 years ago by Anders Markvardsen
- Owner changed from Anders Markvardsen to Gesner Passos
- Description modified (diff)
comment:20 Changed 7 years ago by Gesner Passos
This is the Q error calculated in SNS: http://www.mantidproject.org/EQSANSResolution
Changed 7 years ago by Gesner Passos
- Attachment lanl_tof_sans.pdf added
File provided by Mathieu from where they took the q error implementation.
comment:21 Changed 7 years ago by Gesner Passos
We asked Mathieu to provide more information, he gave us the lanl_tof_sans.pdf and said:
You can have a look at this paper and its references. It's basically the standard Mildner-Carpenter averaged over the time bins.
comment:22 Changed 7 years ago by Gesner Passos
The last comment, received from Steven 27/01/2014:
We’re trying to make sense of what you’ve sent us! Some of it we understand. Some of it we don’t''
Hence, it in the stage of waiting for more inputs from the scientits
comment:23 Changed 7 years ago by Nick Draper
- Status changed from new to assigned
bulk move to assigned at the into of the triage step
comment:24 Changed 7 years ago by Nick Draper
- Owner changed from Gesner Passos to Peter Parker
Ownership handed over to Peter
comment:25 Changed 6 years ago by Anders Markvardsen
- Priority changed from minor to critical
- Owner changed from Peter Parker to Anders Markvardsen
- Milestone changed from Backlog to Release 3.3
These error may be outputted to casSAS output. This q errors can then e.g. be used in further analysis using sasview.
Changed 6 years ago by Anders Markvardsen
- Attachment Event_data_EQSANS_v3.docx added
Most recent update to this provided by Richard
comment:26 Changed 6 years ago by Anders Markvardsen
- Status changed from assigned to verify
- Resolution set to fixed
comment:27 Changed 6 years ago by Harry Jeffery
- Status changed from verify to verifying
- Tester set to Harry Jeffery
comment:29 Changed 5 years ago by Stuart Campbell
This ticket has been transferred to github issue 3008
Bulk move of tickets at the end of iteration 28