Opened 16 years ago

Closed 14 years ago

#9 closed bug (fixed)

Normalisation of USANS data in reduction

Reported by: ajj Owned by: ajj
Priority: major Milestone: USANS Reduction Wish List
Component: USANS Reduction Keywords:
Cc: Blocking:
Task:

Description

Use of counting prefactor in experiment showed up problem whereby transmission calculations
use count time without accounting for prefactor, rather than monitor counts for normalisation.

This causes problems when people use prefactors and when the beam is not steady.

Please fix this.

From: http://rt.ncnr.nist.gov/Ticket/Display.html?id=742

Change History (3)

comment:1 in reply to: ↑ description Changed 16 years ago by ajj

  • Status changed from new to assigned

Replying to ajj:

Prefactor accounting has been added and checked in revision [51].

Root and branch reform to use monitor count normalisation still required.

comment:2 Changed 14 years ago by srkline

  • Milestone set to USANS Reduction Wish List

comment:3 Changed 14 years ago by ajj

  • Resolution set to fixed
  • Status changed from assigned to closed

Fixed. Monitor normalization was being used but the code was somewhat obfuscated.

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