Optical coupling materials are usually applied to ensure good optical matching in the APDscintillating 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 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 315 nm (CsI scintillating emission wavelength).
Radiation hardness and stability of optical coupling materials for BelleII electromagnetic calorimeter / G., Finocchiaro1; Aloisio, Alberto; 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; Giordano, Raffaele; P., Lubrano; E., Manoni; A., Ordine; A., Passeri; P., Patteri; I., Peruzzi; M., Piccolo; A., Rossi; C., Sciacca; D., Tagnani. - (2014). (Intervento presentato al convegno TIPP 2014 Technology and Instrumentation in Particle Physics 2014 tenutosi a Amsterdam nel June 2-6).
Radiation hardness and stability of optical coupling materials for BelleII electromagnetic calorimeter
ALOISIO, ALBERTO;GIORDANO, RAFFAELE;
2014
Abstract
Optical coupling materials are usually applied to ensure good optical matching in the APDscintillating 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 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 315 nm (CsI scintillating emission wavelength).I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
