Log entry time 08:18:14 on March 20, 2011

Entry number 352665

Below is are plots of the TOF of particles in HAND. (one plot is just a
zoom in of the other)
This is for all T5 events (i.e. marked by the event header) we have ever
since we started our prodction.
[I added the 20ns offsets to the runs where the delay of T3 was removed.]
Note:: There's no cut on the deltas here.


The location of the peak is consistent with the (e,e'N_recoil) colation.
We estimate about 170 +/- 40 neutrons abouve BG.
This gives an aproximate ratio of (e,e'p)\(e,e'pn) = 70% +/- 20%.


Compared to the privous experiment our (e,e'pn) rate seems to be about 4
times higher.
This is expected because we have a factor of 2 from the improved HAND
efficiency and also from the deltas we didn't cut out.



The one problem I have with this is that we do not have a veto for each
bar coming from the two bars infront of him.
So we don't know that the particles we see are indeed neutrons.

Figure 1

Figure 2