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Glass Ceramics
Optical Filters
Optical Glasses
Optical Materials
Technical Glasses
AR Coated Glass
Corning
Flashed White Opal
ITO Glass
Leadglass Xray Protection
Pilkington
Schott
Sodalime floatglass
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/m
2
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
n
d
1.76
Transmission % @ 550mm through 5mm path
>= 85.0
Chemical Properties
Lead (Pb)
48%
Barium (Ba)
15%
Mechanical Properties
Specific gravity (g/cm
3
)
4.8
Knoop hardness (kg/mm
2
)
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.