Michael Morag edited Simulation.tex  about 10 years ago

Commit id: 20420e6f6ff3c539463902cbeadd7a19ecf276f5

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Simulations were made using IDL software and are as shown here. The simulations were generated using Appleton's equations. The simulation generated wavefronts at different angles and summed them to create an interference pattern. Several simulations are shown with different different frequency and magnetic field settings. Figure 5 illustrates simulated whistler waves under the conditions used during the plane data measurements. Comparing to figure 1, it can be seen that the simulated data and the measured data agree with one another. There are some dissimilarities with the rate of decay, but otherwise the measured data matches quite well with the simulated data. The assumptions that were made when creating the simulation were that the magnetic field was constant along the radial direction, as well as using a constant density ($3.5 \times 10^{11} cm^{-3}$). Due to problems when taking density measurements using the langmuir probe (not all channels were saved), that source could not be used. However, the used density was reasonable when compared to previous labs.  Also that the plasma was infinite (not confined in a chamber), and that the plasma was cold, about 1.5 eV,  so low ion movement. The code used to generate the simulation is attached to this report.