Ticket #3375 (closed: fixed)

Opened 9 years ago

Last modified 5 years ago

The reduction is doing something odd with the (roughly) 5-5.5 Ang neutrons

Reported by: Steve Williams Owned by: Steve Williams
Priority: major Milestone: Iteration 30
Component: Mantid Keywords:
Cc: Blocked By:
Blocking: Tester: Anders Markvardsen

Description

When running wavelength range reductions in ISIS SANS the 5.0-5.5 wavelength band is coming out lower than the other bands. They should all over lay one another. The attached plot shows the reduction on sample LOQ64185 which is a good test case.

Attachments

cranky_overlaps.png​ (93.6 KB) - added by Steve Williams 9 years ago.

Change History

Changed 9 years ago by Steve Williams

comment:1 Changed 9 years ago by Steve Williams

  • Status changed from new to accepted

comment:2 Changed 9 years ago by Steve Williams

In [13270]:

Masking of bins was effectively happening twice, only a problem for partially masked bins re #3375

comment:3 Changed 9 years ago by Steve Williams

In [13274]:

Fix to warnings re #3375

comment:4 Changed 9 years ago by Steve Williams

In [13287]:

Fix system tests re #3375

comment:5 Changed 9 years ago by Steve Williams

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

This seems to work now. An ISIS SANS analysis using 5-5.5 angstroms gives the same result as, say, 4.5-5 angstroms within the errors.

comment:6 Changed 9 years ago by Anders Markvardsen

  • Status changed from verify to verifying
  • Tester set to Anders Markvardsen

comment:7 Changed 9 years ago by Anders Markvardsen

  • Status changed from verifying to closed

comment:8 Changed 5 years ago by Stuart Campbell

This ticket has been transferred to github issue ​4222

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