To begin with the detectors will be set up 180 degrees from each other with the sample at their center as we expected the photons emitted from the decay of the produced positronium to be correlated by having opposite amounts of momentum as they initially had no momentum. We will analyse this assumption later by changing the the position of our detector on the goniometer arm while keeping the other detector fixed.
Procedure
Much of the procedural work for this experiment was already done by Young John which he thoroughly explained to me. Some of this procedure and explanation can be found in the question section at the beginning of this write up. I was however able to add a coincidence counter that was capable of taking counts from both arms \(A\) and \(B\) as well as count total number of coincidences from these arms given a specified interval. Secondary work was done in determining whether coincidence counts were coming from from random events at the same time rather then from simultaneous events correlated in time. As well spacial correlation was checked by maneuvering detector \(B\) about some fixed central position to change our angular relation.
Data
First data was taken, as shown in table \ref{432652} by adjusting the angle between the two detectors.