Gamma peak study with in exp. cell with CO-60
Overview
I placed a photon source with trigger at various locations along the beam line and compared the resulting ToF spectrum with a Thorium target run. Each ToF spectrum was given a time offset equal to the time light takes to travel from room center to location of the trigger for that run, e.g. the ToF is given a +3.2 ns shift when the trigger/source is located at the beam dump (see image below). This was done to offset the effect of moving the trigger with the source.
Results
Which gamma peak coming from the thorium target can be determined by doing a target-in minus target-out (runs 5320 & 5321). The target-gamma peak can be aligned with the peak for a photon source at room center. After this alignment, overlaying thorium target ToF with the specra for photons sources at various locations along the beam line reveals possible origins for the multiple peaks in the thoriums target data Go back