Radiation measurement is an exponential
analysis, which is an “illposed” problem, where the solution is not unique.
Therefore, the accuracy of data points is critical.
If the radiation detector is sensitive during
the dead time, usually an extended dead time signal processing method is
necessary and the calculation
of the dead time and pile up rate invoke the inversion problem, which is
difficult to solve, and only approximated.
We have used two new approaches, where the
inversion problem is not posed, and there is no need to assume the Poisson
distribution or constant source strength.
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