\(\renewcommand\AA{\unicode{x212B}}\)
VesuvioL1ThetaResolution v1¶
Summary¶
Calculates resolution of l1 and theta
Properties¶
Name |
Direction |
Type |
Default |
Description |
|---|---|---|---|---|
PARFile |
Input |
string |
PAR file containing calibrated detector positions. Allowed extensions: [‘.par’, ‘.dat’] |
|
SampleWidth |
Input |
number |
3 |
With of sample in cm. |
SpectrumMin |
Input |
number |
3 |
Index of minimum spectrum |
SpectrumMax |
Input |
number |
198 |
Index of maximum spectrum |
NumEvents |
Input |
number |
1000000 |
Number of scattering events |
Seed |
Input |
number |
123456789 |
Seed for random number generator |
L1BinWidth |
Input |
number |
0.05 |
Bin width for L1 distribution. |
ThetaBinWidth |
Input |
number |
0.05 |
Bin width for theta distribution. |
OutputWorkspace |
Output |
Mandatory |
Output workspace containing mean and standard deviation of resolution per detector. |
|
L1Distribution |
Output |
Distribution of lengths of the final flight path. |
||
ThetaDistribution |
Output |
Distribution of scattering angles. |
Description¶
This algorithm calculates the resolution of the scattering angle (theta) and final flight path (L1) for a VESUVIO calibration provided by a PAR file.
The calculation is performed using a Monte Carlo simulation that simulates the path of a neutron between a random point on the face of the sample to a random point on the face of each detector.
Usage¶
Example - VesuvioL1ThetaResolution
resolution, l1_dist, theta_dist = VesuvioL1ThetaResolution(NumEvents=1000)
resolution_spec_names = resolution.getAxis(1).extractValues()
print("Resolution spectra: %s" % (', '.join(resolution_spec_names)))
print("L1 distribution spectra count: %d" % (l1_dist.getNumberHistograms()))
print("Theta distribution spectra count: %d" % (theta_dist.getNumberHistograms()))
Output:
Resolution spectra: l1_Mean, l1_StdDev, theta_Mean, theta_StdDev
L1 distribution spectra count: 196
Theta distribution spectra count: 196
Categories: AlgorithmIndex | CorrectionFunctions\SpecialCorrections
Source¶
C++ header: VesuvioL1ThetaResolution.h
C++ source: VesuvioL1ThetaResolution.cpp