Fit: line + power law + line
Free parameters: 2x boundary points between lines
Algorithm: Nelder-Mead, 20 iterations.

Attach 1: Wave amplitudes. 
Pulse not shown at 1000 channels.
Obvious signal from Bismuth source with visible peaks. Not all peak origins clear.

Attach 2: Risetimes.
Pick-up / microphonic noise quite evident (compare with background run with B-grade silicon)
Pulser relatively well-defined in risetimes
Electrons not well defined

Attach 3: Waveform for electron candidate fitted as risetime = 26 samples
Attach 4: Waveform for electron candidate fitted as risetime = 153 samples

Visual difference between the two unclear, aside from noise.
Looks like fitting function is failing. Will have to change algorithm to draw any conclusions.