TDR: Total Data Readout
TDR allows each channel to be run independently, and then
be associated in software for event reconstruction. Such a solution is
possible as each data word is associated with a time-stamp generated by a
global 100MHz clock. This allows all of the data from the target position
and the focal plane to be collected with virtually no system dead time
loses.
The correlation of events is defined in software by the
physicist using the spatial and temporal constraints determined by the
experiment being performed. This correlation can be as simple or as complex
as the user decides, a simple example would be to start with the
identification of recoils then to look back in time using a window centered
on the time of flight of the recoils, for the gamma rays detected during
that window. A more complex example would add in correlations between the
decays of the implanted recoils before the data were stored.
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