Ticket #4045 (assigned)

Opened 9 years ago

Last modified 5 years ago

Masked bins are not accounted for in DiffractionFocussing for event workspaces

Reported by: Martyn Gigg Owned by: Peter Peterson
Priority: major Milestone: Backlog
Component: Framework Keywords:
Cc: Blocked By:
Blocking: Tester:

Description

From MantidHelp:

I am trying to remove the WISH prompt pulse with the MaskBins algorithm using both event nxs file and raw file generated from the event nxs one (a python script with the history is in the attachment). Surprisingly, the MaskBins algorithm works differently for the nxs and raw files (see the attached screenshot with the plotted result). Do you have an idea why it is like that? and how to improve the prompt pulse removing in the case of event nxs files?

The problem is that for event workspaces the events are physically removed but not kept track of so that the normalization in DiffractionFocussing is too high. See attached plot and script.

Attachments

Prompt_pulse_rem.py​ (1.7 KB) - added by Martyn Gigg 9 years ago.
WISH_prompt_pul.png​ (150.3 KB) - added by Martyn Gigg 9 years ago.

Change History

Changed 9 years ago by Martyn Gigg

Changed 9 years ago by Martyn Gigg

comment:1 Changed 9 years ago by Russell Taylor

Kind of related to this, it looks to me as though masked detectors are not accounted for when calculating the normalizing weight when you have a Workspace2D (they are for events).

comment:2 Changed 9 years ago by Nick Draper

  • Status changed from new to assigned
  • Owner set to Peter Peterson

comment:3 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:4 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:5 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:6 Changed 8 years ago by Nick Draper

  • Milestone changed from Release 2.3 to Release 2.4

Moved to milestone 2.4

comment:7 Changed 8 years ago by Peter Peterson

  • Milestone changed from Release 2.4 to Release 2.5

comment:8 Changed 7 years ago by Nick Draper

  • Milestone changed from Release 2.5 to Release 2.6

Moved to r2.6 at the end of r2.5

comment:9 Changed 7 years ago by Nick Draper

  • Status changed from assigned to new

comment:10 Changed 7 years ago by Nick Draper

  • Component changed from Mantid to Framework

comment:11 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:12 Changed 7 years ago by Nick Draper

  • Status changed from new to assigned

Bulk move to assigned at the introduction of the triage step

comment:13 Changed 5 years ago by Stuart Campbell

This ticket has been transferred to github issue ​4892

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