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Processing of yttrium aluminosilicate (YAS) glasses for dental composites
Velez,M.; He,Y.; Day,D. E.; Schuman,T. P.; Kilway,K. V.; Melander,J. R.; Weiler,R. A.; Miller,B. D.; Nalvarte,E. L.; Eick,J. D.Two series of silicate glasses were processed to micron-size, sub-micron size, and nanoparticles using three different milling systems: ball milling, attrition, and high-energy milling. The effect of milling time and media size on particle size and contamination were investigated in aqueous and isopropanol suspensions. The particle size was determined using a laser-diffraction particle size analyzer and scannin...
Performance of a large area avalanche photodiode in a liquid xenon ionization a...
Ni, K.; Aprile, E.; Day, D.; Giboni, K. L.; Lopes, J. A. M.; Majewski, P.; Yamashita, M.Scintillation light produced in liquid xenon (LXe) by alpha particles, electrons and gamma-rays was detected with a large area avalanche photodiode (LAAPD) immersed in the liquid. The alpha scintillation yield was measured as a function of applied electric field. We estimate the quantum efficiency of the LAAPD to be 45%. The best energy resolution from the light measurement at zero electric field is 7.5%([sigma...
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