Radiation hardness and stability of optical coupling materials for BelleII electromagnetic calorimeter

G. Finocchiaro, A. Aloisio, S. Baccaro, P. Branchini, S. Cavaliere, C. Cecchi, A. Cemmi, G. Corradi, E. De Lucia, G. De Nardo, R. De Sangro, G. Felici, S. Fiore, R. Giordano, P. Lubrano, E. Manoni, A. Ordine, A. Passeri, P. Patteri, I. PeruzziM. Piccolo, A. Rossi, C. Sciacca, D. Tagnani

Research output: Contribution to conferencePaper

Abstract

Optical coupling materials are usually applied to ensure good optical matching in the APD-scintillating crystal detection system. High transparency at the scintillating emission wavelength and material stability under irradiation are recommended requirements. In this work, silicon optical grease (BC630) and two-component epoxy resins (Epo-tek 301-2FL and Epo-tek 305), to be employed in the electromagnetic calorimeter of the BelleII experiment at the Super-KEKB collider, were investigated to establish their radiation hardness and stability under gamma and neutron irradiation. Optical transmittance measurements were performed in the UV-VIS range, paying particular attention to the materials behavior in the range around 315nm (CsI scintillating emission wavelength).
Original languageEnglish
Publication statusPublished - 2014
Externally publishedYes
Event3rd Technology and Instrumentation in Particle Physics Conference, TIPP 2014 - Amsterdam, Netherlands
Duration: 1 Jan 2014 → …

Conference

Conference3rd Technology and Instrumentation in Particle Physics Conference, TIPP 2014
CountryNetherlands
CityAmsterdam
Period1/1/14 → …

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Finocchiaro, G., Aloisio, A., Baccaro, S., Branchini, P., Cavaliere, S., Cecchi, C., ... Tagnani, D. (2014). Radiation hardness and stability of optical coupling materials for BelleII electromagnetic calorimeter. Paper presented at 3rd Technology and Instrumentation in Particle Physics Conference, TIPP 2014, Amsterdam, Netherlands.