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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