6.4

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SANSILLParameterScan v1

../_images/SANSILLParameterScan-v1_dlg.png

SANSILLParameterScan dialog.

Table of Contents

Summary

Integrate SANS scan data along a parameter

Properties

Name Direction Type Default Description
OutputWorkspace Output Workspace   The output workspace containing the 2D reduced data.
OutputJoinedWorkspace Output Workspace   The output workspace containing all the reduced data, before grouping.
SampleRuns Input list of str lists Mandatory Sample run(s). Allowed values: [‘nxs’]
AbsorberRuns Input list of str lists   Absorber (Cd/B4C) run(s). Allowed values: [‘nxs’]
ContainerRuns Input list of str lists   Empty container run(s). Allowed values: [‘nxs’]
SensitivityMap Input string   File containing the map of relative detector efficiencies. Allowed values: [‘nxs’]
DefaultMaskFile Input string   File containing the default mask to be applied to all the detector configurations. Allowed values: [‘nxs’]
NormaliseBy Input string Timer Choose the normalisation type. Allowed values: [‘None’, ‘Timer’, ‘Monitor’]
Observable Input string Omega.value Parameter from the sample logs along which the scan is made
PixelYMin Input number 140 Minimal y-index taken in the integration
PixelYMax Input number 180 Maximal y-index taken in the integration
Wavelength Input number 0 Wavelength of the experiment. Will try to read Nexus files if not provided.

Description

This algorithm allows the integration of data along a parameter. It has been designed for D16 along the Omega axis, but it can normally be applied to other instruments and techniques. Given a series of files with a parameter varying, this algorithm performs usual reduction for SANS detectors, and then produces a 2D ouput, with the x-axis being the x-axis of the detector, and the y-axis the parameter used for the scan. The data is thus the sum of each column of pixels of the detector, stacked one above the others and sorted by the integration parameter. The OutputJoinedWorkspace contains, if asked for, the reduced data on one workspace, along the axis defined by the parameter.

Example - full treatment of a sample

# reduce part of an omega scan on D16.
SANSILLParameterScan(SampleRuns="023583:023585",
                     OutputWorkspace="output2d",
                     OutputJoinedWorkspace="reduced",
                     Observable="Omega.value",
                     PixelYmin=3,
                     PixelYMax=317)

Categories: AlgorithmIndex | ILL\SANS | ILL\Auto