Ticket #2668 (closed: fixed)

Opened 10 years ago

Last modified 5 years ago

CaltoDspacemap negative values

Reported by: Vickie Lynch Owned by: Vickie Lynch
Priority: major Milestone: Iteration 29
Component: Mantid Keywords:
Cc: Blocked By:
Blocking: Tester: Peter Peterson

Description

The d-spacemap file for POWGEN has 15 pixels with negative values that cause problems when read by SNS software. Set negative values to zero. These pixels have noise, but no peaks to find the offsets for the cross correlations. Also correct these values in the .cal file.

Change History

comment:1 Changed 10 years ago by Vickie Lynch

  • Status changed from new to accepted

comment:2 Changed 10 years ago by Vickie Lynch

(In [10107]) Refs #2668 Set negative values in d-spacemap file to zero

comment:3 Changed 10 years ago by Vickie Lynch

(In [10115]) Refs #2668 Set offsets to zero in GetDetectorOffsets if Gaussian fit of cross correlation peak is not successful

comment:4 Changed 10 years ago by Vickie Lynch

  • Status changed from accepted to verify
  • Resolution set to fixed

Noisy data does not cause large offsets or negative d-spacemap values with these changes.

comment:5 Changed 10 years ago by Vickie Lynch

  • Status changed from verify to reopened
  • Resolution fixed deleted

Another spectra with offset < -1 was found in output of GetDetectorOffsets

comment:6 Changed 10 years ago by Vickie Lynch

  • Status changed from reopened to accepted

comment:7 Changed 10 years ago by Vickie Lynch

(In [10608]) Refs #2668 Set offsets to zero for noisy spectra

comment:8 Changed 9 years ago by Nick Draper

  • Milestone changed from Iteration 28 to Iteration 29

Bulk move of tickets at the end of iteration 28

comment:9 Changed 9 years ago by Vickie Lynch

(In [11506]) Refs #2668 Changed needed for SNAP calibration

comment:10 Changed 9 years ago by Vickie Lynch

(In [12784]) Refs #2668 Make sure that no spectra has an offset < -1 for d-spacemap

comment:11 Changed 9 years ago by Vickie Lynch

  • Status changed from accepted to verify
  • Resolution set to fixed

comment:12 Changed 9 years ago by Peter Peterson

  • Status changed from verify to verifying
  • Tester set to Peter Peterson

comment:13 Changed 9 years ago by Peter Peterson

  • Status changed from verifying to closed

This was done correctly. Strangely, most commits were against GetDetectorOffsets though...

comment:14 Changed 5 years ago by Stuart Campbell

This ticket has been transferred to github issue ​3515

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