I managed to obtain the spectrum with the pulser on the annular (Y side, namely sectors).
The raw strip numbers where I should have the 16 sectors are: 14, 16, 18, 20, 22, 24, 26, 28, 36, 38, 40, 42, 44, 46, 48 and 50.
The 5 strips I could see with the alpha source are: 20, 40, 44, 48, 50.
Now with the pulser I don't see the following strips: 14, 16, 18, 20, 22, 24, 26, 28, 36, 40, 42, 44, 48, 50.
So the pulser apparently doesn't go through most of the channels that are connected to a sector and all the channels that were ok with the alpha source now don't see the pulser...
The plots below are the pulser energy vs the raw strip number with a zoom on the region where I should have all the sectors. The plot below is the projection on X (strip number) of the first plot, now considering all the strips -> only strips connected to sectors don't show the pulser peak.
Concerning the rings, most of them see the alpha source but only few of them (the ones between the two red lines in the last figure attached) correctly display three peaks. The others have many peaks as a result of missing sectors on the Y side. |