Log entry time 21:14:13 on March 15, 2011

Entry number 352013

Followups:

• 352022 03/15/11 21:46 V. Sulkosky Re-post plots not ps format

with help from Kalyan we looked on the timing variables.

We wanted to make sure that right now, electron is carrying timming.
for this check 3 plots attached.

1) coin plot (HRSR - HRSL)  with cut on trigger T5 (T5 is a common stop)
2)   " HRSR -  (HRSR*HRSL) " with cut on trigger T5 (T5 is a common stop)
3)   " HRSL -  (HRSR*HRSL) " with cut on trigger T5 (T5 is a common stop)

The red line is EDTM signal. The black line is the actual signal and the
blue line is the real signal with additional cut on coin time.

I expect that the particle that carry time will behave like delta function.
For the elctron we see that it's a very narrow distribution (~1 ns) and
for protons we have some spread (~15 ns). (the X axis units are in TDC 
channels).

This data is correspond to slowest proton to HRSR that we will take, the
question that I don't know the answer is were we expect the fastest proton.


in figure number 4 presented distribution of T3 (for all trigger types).
From this distribution I see that our readout window for TDCs is ~ 800 ns

I though that our readout window is 1.5 usec... what changed?

Figure 1

Figure 2

Figure 3

Figure 4