[Isac-journal-club] JOURNAL CLUB TOMORROW (Wed 21st)

[journalclub]

Hello All,


This weeks journal & snack club is tomorrow (Wednesday 21st) at 3:30 in the
MOB.

Stephen will be presenting the attached paper:

https://www.sciencedirect.com/science/article/pii/S0370269318301771



Some Questions/Discussion Points:

   1. What would be the consequences of variations in the decay constant?
   2. The activity of the sources is calculated by integrating the full
   energy spectrum, why measure activity above the full photopeak energy.
   3. 40K  decays predominately via β- decay to 40Ca without the emission
   of a γ ray. As the experiment is insensitive to this type of decay can they
   discount variations in the decay rate.
   4. The detector experiences a significant gain shift over the course of
   the experiment. What could be the cause of this shift?
   5. In Fig 7 why is the standard deviation no longer horizontal after 100
   days? The same effect is not seen in Fig 4  despite using the same methods.


See you all tomorrow.
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