This directory contains a Monte Carlo study of the
BCAL timing resolution based on detailed conversion 
of individual GEANT steps for every shower particle
into a cumulative electronic pulse shape.

This repeats and builds on the initial study in the
2011.08.01 directory. Changes include:

1. Dark pulses are now individually distributed
   throughout the time window. Previously, all
	dark hits in a single SiPM were placed at the 
	same time

2. Cross-talk for dark hits are calculated for
   each primary dark hit and placed at the same
	time. Because the cross-talk fraction increased
	~5-fold in measurements taken over the last 6
	months (up to 15.7%), a second cross-talk hit
	probability is also sampled and applied.

3. The number of photons per MeV per side was changed
   from 75 to 145. This is due to newer measurements
	that indicated the long range part of the 
	attenuation factor gave 290 photons/MeV out of the
	fiber. The light guides cut this down by approx.
	a factor of 2 giving the 145. This is manifest 
	by the number 0.668 MeV/PE being changed to
	0.346 MeV/PE.

4. Added smearing of the threshold voltage by 2mV
   (sigma) to account for baseline voltage shifts

5. Added electronic noise (1mV) to baseline


The directories with names like 12degrees_clean have
studies with the main stochastic effects turned off
so as to study the effects of leakage and threshold.