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  • Title: Scintillation event energy measurement via a pulse model based iterative deconvolution method.
    Author: Deng Z, Xie Q, Duan Z, Xiao P.
    Journal: Phys Med Biol; 2013 Nov 07; 58(21):7815-27. PubMed ID: 24145134.
    Abstract:
    This work focuses on event energy measurement, a crucial task of scintillation detection systems. We modeled the scintillation detector as a linear system and treated the energy measurement as a deconvolution problem. We proposed a pulse model based iterative deconvolution (PMID) method, which can process pileup events without detection and is adaptive for different signal pulse shapes. The proposed method was compared with digital gated integrator (DGI) and digital delay-line clipping (DDLC) using real world experimental data. For singles data, the energy resolution (ER) produced by PMID matched that of DGI. For pileups, the PMID method outperformed both DGI and DDLC in ER and counts recovery. The encouraging results suggest that the PMID method has great potentials in applications like photon-counting systems and pulse height spectrometers, in which multiple-event pileups are common.
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