EQSANSResolution dialog.
Table of Contents
| Name | Direction | Type | Default | Description |
|---|---|---|---|---|
| InputWorkspace | InOut | MatrixWorkspace | Mandatory | Name the workspace to calculate the resolution for |
| ReducedWorkspace | Input | MatrixWorkspace | Mandatory | I(Q) workspace |
| OutputBinning | Input | dbl list | Mandatory | |
| MinWavelength | Input | number | Optional | Minimum wavelength to use. |
| MaxWavelength | Input | number | Optional | Maximum wavelength to use. |
| PixelSizeX | Input | number | 5.15 | Pixel size in the X direction (mm). |
| PixelSizeY | Input | number | 5.15 | Pixel size in the Y direction (mm). |
| SampleApertureRadius | Input | number | 5 | Sample aperture radius (mm). |
| SourceApertureRadius | Input | number | 10 | Source aperture radius (mm). |
| DeltaT | Input | number | 250 | TOF spread (microsec). |
This algorithm extends the TOFSANSResolution to implement the experimentally determined TOF resolution for EQSANS.
The Q resolution for a TOF SANS has two components: a geometrical contribution and a contributions from the resolution in TOF.
The TOF resolution for EQSANS was measured to be:
ΔT=y0+A(f/(1+exp((λ−x01)/k1))+(1−f)/(1+exp((λ−x02)/k2)))
where λ is the wavelength and
y0=−388
A=3838
f=0.04398
x01=3.392
x02=134.3
k1=−0.5587
k2=−65.46
This algorithm is generally not called directly. It’s called by EQSANSAzimuthalAverage1D after the calculation of I(Q). It can only be applied to an I(Q) workspace.
Categories: AlgorithmIndex | SANS