BC-444 Long Timing Constant Plastic Scintillator General Description BC-444 is a plastic scintillator developed to have long timing properties. Applications include heavy ion research, particle identification, low background counting, active shielding and dosimetry in which BC-444 is used either by itself or in conjunction with a fast scintillator such as BC-400. BC-444 is available in a variety of shapes and sizes. The material has the same kind of mechanical handling properties as Bicron's other premium plastic scintillators. General Technical Data Base Polyvinyltoluene Density 1.032 Refractive Index 1.58 (nD), 1.607 at wavelength of maximum emission Vapor Pressure May be used in vacuum. Softening Point 65°C Coefficient of Linear Expansion Approximately 7.8 X 10-5 (Below65°C) Solubility Soluble in aromatic solvents, chlorinated solvents, acetone, etc. It is unaffected by water, dilute acids, lower alcohols, alkalis, an pure silicone fluids or grease. Physical Constants Light Output 41% anthracene Rise Time 19.5 nsec Decay Time 179.7 nsec Pulse Width, FWHM 171.9 nsec Wavelength of Maximum Emission 428 nm No of H Atoms per cm3 5.25 X 1022 No. of C Atoms per cm3 4.73 X 1022 Ratio H:C Atoms 1.109 No. of Electrons per cm3 3.37 X 1022 [ Cast plastic scintillators ] Organic Products | Inorganic Scintillation Products | Crystal Products Bicron-RMP | Optics and Oxides | Crismatec | Product Search/Faq Company Profile | News | Contact Us | NE Technology | Home