Magnetization Vector Reconstruction Algorithm based on STXM - Tomography Experiments
STXM - Tomography Experiments have been done in the NanoMAX beamline at the MAX-IV Synchrotron in Lund, Sweden on Nd2Fe14B permanent magnet samples.
The data files are available upon request.
The reconstruction steps and the algorithm has been implemented in Tomopy. All the code (in stepwise manner) is in Magnetization_Vector_Recon.py.
The 3D magnetization domains are then rotated in the direction of maximum contrast. For the 5.4 micron NFB sample, it is in rotate_3Dobj.py.
Finally, the scalar reconstruction of the object is done also in Tomopy, using only one tilt orientation. Subsequently, this 3D scalar magnetization is rotated appropriately around the y-axis and x-axis successively. Based on this rotated scalar reconstruction, the 3D vector magnetization of the object only is isolated. This is in rotate_scal_3Dobj_thresh.py for the 5.4 micron NFB sample.
Using these magnetization vectors in 3D, the vector field visualization is done in Paraview.