Med-Gamma® Glass

SKU: MED-GAMMA

Radiation Shielding Glass for medical, technical and research applications.

Corning is a world leader in Radiation Shielding Glass offering a comprehensive range of products including Corning® Med-Gamma® Glass. Corning®
Med-Gamma® Glass is supplied as polished plates with dimensions up to 2800 x 1400 mm, and has been designed to provide high quality, transparent and protective shielding from gamma-based PET radiation under various keV levels.

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Description

Key Benefits

  • Protective shielding glass against gamma-based PET radiation as specified by IEC 61331:2014 (Standard Gamma Radiation).
  • Extensive physical testing carried out on Corning® Med-Gamma® Glass allowing designers to specify glass with maximum confidence.
  • High quality and neutral appearance providing excellent visual clarity.
  • Corning® Med-Gamma® Glass is supplied as :
    • Polished plate up to 2800 x 1400mm
    • Laminated plate using PVB Interlayer
    • Cut plate supplied to customer specific sizes (with edges ground or polished and finished with safety chamfers).
  • Corning® Med-Gamma® Glass is stocked worldwide through local Corning sales offices and a network of specialist partners.

Applications

  • Occupational protection from PET radiation in scanning techniques for diagnostics and treatment.
  • Cyclotron maintenance.

Physical Properties

Optical Properties

  • Refractive Index nd: 1.76
  • Transmission % @ 550nm through 5mm path: ≥85.0

Chemical Properties

  • Lead (Pb): 52%
  • Barium (Ba): 17%

Mechanical Properties

  • Density (g/cm3): 4.8
  • Knoop Hardness (kg/mm2): 409
  • Young’s Modulus (GPa): 62.6
  • Torsion Modulus (GPa): 24.8
  • Poisson’s Ratio: 0.26
  • Coefficient of Thermal Expansion (x10 -7 /°C): 78.8

Shielding Characteristics

Glass Thickness Minimum lead equivalent (mm) for stated keV Max. Plate Mass
mm inches 511 keV 661 keV 1250 keV kg/m2 lbs/ft2
7.0 – 8.5 0.276 – 0.335 2.3 2.5 2.8 40.8 8.4
8.5 – 10.0 0.335 – 0.395 2.8 3.1 3.5 48 9.8
10.0 – 12.0 0.394 – 0.472 3.3 3.6 4.1 57.6 11.8
11.0 – 13.0 0.433 – 0.512 3.7 4 4.5 62.4 12.8
12.0 – 14.0 0.472 – 0.551 4 4.3 4.9 67.2 13.8
14.0 – 16.0 0.551 – 0.630 4.6 5.1 5.8 76.8 15.7
16.0 – 18.0 0.630 – 0.709 5.3 5.8 6.6 86.4 17.7
18.0 – 20.0 0.709 – 0.787 5.9 6.5 7.4 96 19.7
20.0 – 24.0* 0.787 – .0945 6.7 7.3 8.5 115.2 23.6
22.0 – 26.0* 0.866 – 1.024 7.3 8.1 9.4 124.8 25.6
24.0 – 28.0* 0.945 – 1.102 8.1 8.9 10.3 134.4 27.5
28.0 – 32.0* 1.102 – 1.260 9.3 10.2 11.7 153.6 31.5
32.0 – 36.0* 1.260 – 1.417 10.7 11.7 13.4 172.8 35.4
36.0 – 40.0* 1.417 – 1.575 12 13.2 15.2 192 39.3
45.0 – 53.0* 1.772 – 2.087 15 16.8 19.2 216 44.2

Data provided by the Public Health England (PHE).
Attenuation measured using the narrow beam method, in accordance with IEC 61331:2014.

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