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Brief
Explanation about this experiment... One
of the other experiments that we offered to the students in our group
to carry out during their visit to campus for the RUG program was to do
the “classic” We
recorded the data for this experiment using the Acquirus
system recording the signals from the two detectors for each event. A Compton Scattering was identified by
observing a signal in the scattering scintillator
“in time” with a signal in the NaI
detector. The students then analyzed the
energy distribution of events recorded in the NaI
to compare with what they expect for Compton
Scattering of these gamma rays from the target scintillator.
Students
involved
The students involved in these measurements were……..
Figure 1. This is a set of
traces for the two detectors used in the Compton Scattering experiment. The top trace is that from the NaI detector and can be identified by is long
decay time fluorescence. The bottom trace
is that from the fast liquid scintillator
cell that was used as the scatter for these measurements. This data was
taken for the unscattered beam at 0
degrees. Hence there is no liquid scintillator signal in time with the NaI signal for this event. Figure 2. This is a set of
traces for the two detectors used in the Compton Scattering experiment. The top trace is that from the NaI detector and can be identified by is long
decay time fluorescence. The bottom trace
is that from the fast liquid scintillator
cell that was used as the scatter for these measurements.
In this event you can clearly see the signal in the
scattering scintillator is in time with
the leading edge of the signal from the NaI
detector. This data was taken for a
scattering angle of 45 degrees. Figure 3. This is a set of
traces for the two detectors used in the Compton Scattering experiment. The top trace is that from the NaI detector and can be identified by is long
decay time fluorescence. The bottom trace
is that from the fast liquid scintillator
cell that was used as the scatter for these measurements.
In this event you can clearly see the signal in the
scattering scintillator is in time with
the leading edge of the signal from the NaI
detector. This data was taken for a
scattering angle of 90 degrees.
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