Ticket #4106 (closed: fixed)

Opened 9 years ago

Last modified 5 years ago

LET event mode rebin - spikes

Reported by: Nick Draper Owned by: Roman Tolchenov
Priority: critical Milestone: Release 2.0
Component: Mantid Keywords:
Cc: Blocked By:
Blocking: Tester: Nick Draper

Description

there still appears to be an issue with the rebin of event mode data taken on let. 
The let file #4181 has an intrinsic width of 1.6us. I've run rebin on the data at 1.6 and 2 (see the attachments) which highlight the issue.
I've attached the python script to recreate the workspaces I imagine that other instruments on TS2 that are running the dae2.5 event mode ICP will not see these issues as they are generally running with a coarser width

The version of mantid was 1.32.522
Rob has tried the same process with a later build an sees the same effects.
Thanks
Jon

Change History

comment:1 Changed 9 years ago by Roman Tolchenov

Re #4106. Events have to be spread randomly within bin

Changeset: 2db843ff992910bc7818d88e930542f974379f71

comment:2 Changed 9 years ago by Roman Tolchenov

Re #4106. Trying to fix isis_lucid build

Changeset: 89987ea641a811e1c62120e9abe5f67d4ac2ff96

comment:3 Changed 9 years ago by Roman Tolchenov

  • Status changed from new to accepted

comment:4 Changed 9 years ago by Roman Tolchenov

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

comment:5 Changed 9 years ago by Roman Tolchenov

Re #4106. Events have to be spread randomly within bin

Changeset: 2db843ff992910bc7818d88e930542f974379f71

comment:6 Changed 9 years ago by Roman Tolchenov

Re #4106. Trying to fix isis_lucid build

Changeset: 89987ea641a811e1c62120e9abe5f67d4ac2ff96

comment:7 Changed 9 years ago by Nick Draper

  • Status changed from verify to verifying
  • Tester set to Nick Draper

comment:8 Changed 9 years ago by Nick Draper

  • Status changed from verifying to closed

tested using LET4181, various bin widths from 200-1, no spiking shown

comment:9 Changed 5 years ago by Stuart Campbell

This ticket has been transferred to github issue 4953

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