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Mark Mills ANS Award 2004
On the Development of Approaches for the Real-Time
Deconvolution of Pulse Pile-Up for Digital Radiation Spectroscopy
Department of Nuclear Engineering, NC State University
Abstract:
Two new real-time approaches have been developed and compared to the
least-squares fit approach for the deconvolution of experimental waveforms
with pile-up pulses. The single pulse shape chosen is typical for scintillators
such as LSO and NaI(Tl). Simulated waveforms with pulse pile up were
also generated and deconvolved to compare these three different approaches
under cases where the single pulse component has a constant shape and
the digitization error dominates. The effects of temporal separation
and amplitude ratio between pile-up component pulses were also investigated
and statistical tests were applied to quantify the consistency of deconvolution
results for each case. Monte Carlo simulation demonstrated that applications
of these pile-up deconvolution techniques to radiation spectroscopy
are effective in extending the counting-rate range while preserving
energy resolution for scintillation detectors.
Mark
Mills Award for Graduate Students:
The American Nuclear Society, in recognition of the important contributions
of the late Mark Mills to nuclear science and engineering, established
the Mark Mills Award in 1958. This $500 cash award and engraved plaque
are given to the author who submits the best original technical paper
contributing to the advancement of science and engineering related to
the atomic nucleus.
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