Energy Spectrum Reconstruction for HPGe Detectors Using Analytical Pile-Up Correction

We consider the problem of pile-ups occurring in gamma spectrometry signals for HPGe detectors. The temporal signal is transformed in a sequence of busy and idle periods, each busy period being characterized by its duration and its associated energy. We present an estimator to correct the pile-up phenomenon, based on an analytical formula. Applications on simulations and real spectrometrical signals are presented, which show good adequation between what we wish to retrieve and the estimation

[1]  Peter Hall,et al.  Nonparametric inference about service time distribution from indirect measurements , 2004 .

[2]  T. Montagu,et al.  Ionizing radiation detection using jump markov linear systems , 2005, IEEE/SP 13th Workshop on Statistical Signal Processing, 2005.

[3]  Thomas Trigano,et al.  Pile-up correction algorithms for nuclear spectrometry , 2005, Proceedings. (ICASSP '05). IEEE International Conference on Acoustics, Speech, and Signal Processing, 2005..

[4]  Eric Moulines,et al.  Nonparametric inference of photon energy distribution from indirect measurement , 2005 .