The maximum current steepness, shown in Figure 4, ranges from 3.06 kA/µs. (The current derivative signal exceeded the maximum scale, set at 35 kA/µs, in several cases.) The figure also shows that 50% of the captured signals have a maximum steepness larger than 15.66 kA/µs
The cumulative statistics of the peak of the current wavefront varies from 0.7 kA to 22.4 kA with 50% of the data exceeding 4.88 kA (Figure 5). The 10%-90% risetime to wavefront current peak ranges from 96.9 ns to 4.94 µs with 50% of the cases exceeding 693 ns