In the last years organic scintillators have been largely investigated in order to achieve high light yield together with good time response. Pure organic compound with high quality crystalline structure can achieve both this goals. Among a large type of organic compound, para-terphenyl (C18H14) have proven to have practical applications as detector medium for particle physics. In this work, the characterization of different sizes high quality mono-crystal p-terphenyl samples is presented. The optical and scintillation properties (emission spectrum, light yield, attenuation length, and decay time) are investigated. Coupling a Silicon PhotoMultiplier-based readout system to the crystal, a small prototype for a high resolution TOF detector was built; the preliminary results, obtained on a 20Ã30Ã3 mm3sample, with dual-side read-out (Hamamatsu S10931-050P SiPMs) and irradiated with90Sr source, show a time resolution of 35 ps.
Properties of single crystal para-terphenyl as medium for high resolution TOF detector
De Gerone, M.;Biasotti, M.;Ceriale, V.;Corsini, D.;Gatti, F.;Pizzigoni, G.
2016-01-01
Abstract
In the last years organic scintillators have been largely investigated in order to achieve high light yield together with good time response. Pure organic compound with high quality crystalline structure can achieve both this goals. Among a large type of organic compound, para-terphenyl (C18H14) have proven to have practical applications as detector medium for particle physics. In this work, the characterization of different sizes high quality mono-crystal p-terphenyl samples is presented. The optical and scintillation properties (emission spectrum, light yield, attenuation length, and decay time) are investigated. Coupling a Silicon PhotoMultiplier-based readout system to the crystal, a small prototype for a high resolution TOF detector was built; the preliminary results, obtained on a 20Ã30Ã3 mm3sample, with dual-side read-out (Hamamatsu S10931-050P SiPMs) and irradiated with90Sr source, show a time resolution of 35 ps.
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
