Left: relative change in the number of sparks for every distinct peak in each of the 512-pulse LRF spectra. The fit was performed with the standard set of aliasing/geometry parameters, for the inside (black dots) and outside (purple dots) traverse geometries. The “reference” number of sparks, N₀, was taken from Fig. 11. Right: at the fiducial longitude, ϕ₀, from Eq. (11) for inside (black dots) and outside (green dots) traverse geometries.