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Table of Contents

Comments and references to code

Analysis of cxif5315

2015-05-04 from Kartik Ayyer:

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Note
fraser1.m - matlab code for doing the reciprocal space mapping.

 

2015-04-30 Meng's link for the CFEL confluence  that has the data analysis summary

 

 

Fraser transformation in python

Menng's matlab code fraser1.m,  fraser2.m for Fraser transformation is implemented in python fraser.py (download).

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Example of diffraction and transformed images: 

 

Angles phi and beta using Kartik's code

Using Kartik's formulas for angles phi and beta kartik-2-peak-ev-angles.py.txt one can get distributions:

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  • angle phi is evaluated using two peak positions and sample-to-detector distance
  • angle beta is evaluated using one !!! peak position and angle phi.
  • peak and event selection need to be improved
  • it could be nice to have explanation to this formalism...

Angles phi and beta from fit

Solving equation for tan(theta) we may get functional dependence between x and y peak position for angles phi and theta,

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