Study and understanding of n/γ discrimination processes in organic plastic scintillators

Matthieu Hamel; Pauline Blanc; Licinio Rocha; Stéphane Normand; Robert Pansu

doi:10.1117/12.2011330

29 May 2013 Study and understanding of n/γ discrimination processes in organic plastic scintillators

Matthieu Hamel, Pauline Blanc, Licinio Rocha, Stéphane Normand, Robert Pansu

Proceedings Volume 8710, Chemical, Biological, Radiological, Nuclear, and Explosives (CBRNE) Sensing XIV; 87101F (2013) https://doi.org/10.1117/12.2011330
Event: SPIE Defense, Security, and Sensing, 2013, Baltimore, Maryland, United States

Abstract

For 50 years, it was assumed that unlike liquid scintillators or organic crystals, plastic scintillators were not able to discriminate fast neutrons from gamma. In this work, we will demonstrate that triplet-triplet annihilations (which are responsible of n/γ discrimination) can occur even in plastic scintillators, following certain conditions. Thus, the presentation will deal with the chemical preparation, the characterization and the comparison of n/γ pulse shape discrimination of various plastic scintillators. To this aim, scale-up of the process allowed us to prepare a Ø 100 mm × ≈ 110 mm thick.

Citation Download Citation

Matthieu Hamel, Pauline Blanc, Licinio Rocha, Stéphane Normand, and Robert Pansu "Study and understanding of n/γ discrimination processes in organic plastic scintillators", Proc. SPIE 8710, Chemical, Biological, Radiological, Nuclear, and Explosives (CBRNE) Sensing XIV, 87101F (29 May 2013); https://doi.org/10.1117/12.2011330

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