Blue dot is emitting particle, green dot is sampling point (cursor keys to move), red dot is mouse cursor.
Poynting flux is plotted in viewport (logarithmic colour scale). Top graph is time series data of E/B field, bottom graph is spectrum.
Click and hold mouse button in view window for manual particle acceleration, or toggle checkbox for synchrotron mode (uses slider params).
Press Q to generate a spectrum from the time series data visible in the graph.
Beta:
Freq:
Step: