UQG Optics

LEAD GLASS (X-RAY PROTECTION)
Shielding Characteristics
Thickness minimum lead equivalence (mm) for stated X-ray tube voltage   Max. plate mass
mm 100kV 110kV 150kV 200kV 250kV 300kV   ibs/sq.ft kg/m2
3.5-5.0 1.2 1.2 1.0 0.9 0.9 0.9   24.0 4.9
5.0-6.5 1.7 1.6 1.5 1.3 1.3 1.3   31.2 6.4
7.0-8.5 2.3 2.3 2.1 1.8 1.8 1.8   40.8 8.4
8.5-10.0 2.8 2.8 2.5 2.2 2.2 2.2   48.0 9.8
10.0-12.0 3.2 3.2 2.9 2.5 2.5 2.5   57.6 11.8
11.0-13.0 3.6 3.6 3.3 2.8 2.7 2.8   62.4 12.8
14.0-16.0 4.6 4.6 4.3 3.5 3.5 3.6   76.8 15.7
Optical Properties
Refractive index nd 1.76
Transmission % @ 550mm through 5mm path >= 85.0
Chemical Properties
Lead (Pb) 48%
Barium (Ba) 15%
Mechanical Properties
Specific gravity (g/cm3) 4.8
Knoop hardness (kg/mm2) 4.40
Youngs modulus (Gpa) 62.7
Poisson's ratio 0.23
Coefficient of thermal expansion (x10-7/°C) 81.8
WHILE EVERY ATTEMPT HAS BEEN MADE TO VERIFY THE SOURCE OF THE INFORMATION, NO RESPONSIBILITY IS ACCEPTED FOR ACCURACY OF DATA.