This repository belongs to one of the lab experiments I did during my Masters in Physics. The idea of the experiment is to teach the students the basics of nuclear magnetic resonance. Since I thought that the topic was interesting to program, I created this repo. Currently, only gradients in the xy-plane are allowed and a 2D sample is needed. However, I will maybe add a z gradient in the future.
In the Jupyter notebooks, which can be found in the experiments directory, some parts of the experiment are redone using the
simulation.
In basics.ipynb, I briefly describe the differences between the simulation
and a real measurement. I also briefly outline the basics of NMR.
(basics.ipynb is not ready yet and just a sketch)
A script for the Fourier-transformation numba_ft.py was taken from:
https://github.com/tloredo/AAS237-TimeSeries
In case you do not want to use numba another version without it can be found there.
At the moment notebooks regarding:
- measurement of T1
- measurement of T2
- measurement of a 1D profile
- measurement of a 1D profile with T1 time
are available.
Two different versions of the code exist.
The first one is given in main.py. It holds the numba version and thus
a bit faster.
The second version is given in no_numba.py. It does not use numba.
Therefore, the simulation is a bit easier to read and work with.
It also allows the capture of such animations about the
dephasing and phasing of spins. The rephasing puls is send at Time 50.0.
The decreasing amplitude (radius) is intentional as it simplifies the simulation.
This is further explained in the basics.ipynb notebook.
