VIVID - UV Phosphors - Green Fine CBT

General Characteristics Physical Characteristics
Name Cerium Gadolinium Magnesium Borate:Tb Fine Body Colour White
Chemical Formula (Ce,Gd)MgB5O10:Tb Specific Gravity 4.40
Application Green Component Tri-band Phosphor mix high colour rendering fluorescent lamps (Ra>80) Particle Size Distribution By Laser Diffraction (Sympatec - HELOS)
Processing Stirrer or Ball Mill » fraction £ 1.8 µm 20.0 ± 6%
Suspension Type Butyl acetate or Water » fraction £ 6.0 µm 67.0 ± 10%
Packaging 50 kg in 50 ltr steel drum » fraction £ 12.5 µm ³ 99.0%
    Crystal Structure Monoclinic
Optical Characteristics of UV Phosphors - Green Fine CBT
—————— 254 nm excitation —————— —————— C.I.E. Chromaticity Coordinates ——————
» Quantum efficiency 90% » Powder x = 0.346       Y = 0.581
» UV absorption 93% » Lamp TLD 36W x = 0.318       Y = 0.532
» Wavelength at peak 542 nm    
» Bandwidth (50%) 9 nm —————— Lumen Output 100h TLD (36W) ——————
» Excitation peak 272 nm » Nominal 4620 lm

 

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