SCHOTT RD 50® radiation shielding glass for viewing windows, doors, and panoramic glazing for analytical equipment

At a Glance

Ensuring safety together in difficult situations

SCHOTT radiation shielding glass provides excellent protection against gamma and X-rays. When it comes to shielding from harmful radiation, no compromises are possible. This is why more and more customers in the fields of medicine, science, and industry are relying on radiation shielding glass from SCHOTT. Safety made in Germany.

SCHOTT is the only company in Germany that manufactures radiation shielding glass, and processes it directly in an expert manner.

Thanks to its high density, RD 50® offers high X-ray absorption even with relatively thin glass, and meets the requirements of the German Institute for Standardization, European Standardization and the International Electrotechnical Commission.

SCHOTT deliver RD 50® in maximum dimensions in every geometric shape. Upon request, SCHOTT processes its radiation shielding glasses into various versions.
Summary:
  • RD 50® is the monolithic X-ray shielding glass with the widest range of thicknesses
  • RD 50® provides high X-ray absorption even with thin glass
  • high lead oxide content
  • key markets are analytical and medical
  • complies with International Radiation Standards

Benefits

Uniqueness of SCHOTT radiation shielding glass:
  • RD 50® is the monolithic X-ray shielding glass with the widest range of thicknesses
  • RD 50® provides high X-ray absorption even with thin glass
  • RD 50® can be supplied in different versions, including bent shapes
Other advantages of SCHOTT radiation shielding glass
  • RD 50® is available in large sizes
  • RD 50® is non-flammable
  • RD 50® is more scratch-resistant than acrylic
  • higher lead equivalents ( > 6.1mm Pb) can be achieved by using composites
  • RD 50® can be processed into insulating glass in combination with sound control or heat protection functions, for example
  • RD 50® is available with holes and cut-outs in the desired sizes
  • RD 50® can be provided as raw material or finished component and processed:
    • edge and bevel grinded
    • drilled
    • curved
    • processing into a glass composite
    • cast resin
    • pvb-film laminated
    • insulating glass in combination with e.g. sound control or heat protection function
    • screen printing

Area of Applications

  • X-ray shielding in hospitals
  • X-ray rooms MRI scanning
  • observations windows
  • door glazing
  • nuclear medicine application
  • special mitre joint and lamination with float glass allow extended window sizes, creating better observation environments
  • multiple glazing units providing shaped observation solutions

Meets the requirements of the German Institute for Standardization, European Standardization, and the International Electrotechnical Commission.

RD 50® satisfies the requirements of DIN EN 61331-2 and IEC 61331-2.
Extensive use of SCHOTT radiation shielding glass RD 50®
RD 50® window application as X-ray shielding in hospitals.

SCHOTT RD 50® for PET applications

Due to its special composition, RD 50® is also ideal for use in PET applications, and offers an excellent protective effect. RD 50® can thus be used in combination with PET and CT.

Technical Information

Optical properties

Refractive index nD at 20°C 1.79
Light transmittance (d = 5.0 mm) 85%

Chemical properties

Hydrolytic class according to DIN ISO 719 HGB 1
Lead oxide content (PbO) ≥ 65%
Total heavy metal content ≥ 70%

Mechanical properties

Density in g/cm3
(as-delivered condition)

≥ 5.05
Other properties

Glass thickness 8.1 mm*
Evaluated sound insulation value Rw  
Spectral adaptation values C and Ctr
Rw (C; Ctr ) =

41 (-3; -3) dB

*  Sound reduction values for other thicknesses upon request.
RD 50®: Lead equivalents in mm Pb for X-ray quality and maximum delivery dimensions


Minimum thickness
d = mm

Maximum thickness
d = mm
Attenuation equivalent in mm Pb at a tube voltage of:
Maximum weight
kg / m2

Maximum dimensions
mm x mm
80 kV 100 kV 110 kV* 150 kV 200 kV
  5.0   7.0 1.5 1.5 1.5 1.5 1.4   35 2,400 x 1,100
  7.0   9.0 2.1 2.1 2.1 2.1 2.0   45 2,400 x 1,100
  8.5 10.5 2.6 2.6 2.5 2.5 2.4   53 2,400 x 1,100
10.0 12.0 3.1 3.1 3.0 3.0 2.9   61 2,000 x 1,000
11.5 14.0 3.5 3.6 3.5 3.5 3.3   71 2,000 x 1,000
16.0 19.0 - 5.0 4.9 4.9 4.6   96 1,500 x    800
20.0 23.0 - 6.3 6.1 6.1 5.8 116 1,500 x    800
RD 50®: Lead equivalents in mm Pb for radionuclides


Nuclide
Attenuation equivalent in mm Pb with a thickness d of:
4.0 mm 5.0 mm 7.0 mm 8.5 mm 10.0 mm 11.5 mm 16.0 mm 20.0 mm
C-11, N-13, O-15, F-18 1.4 1.8 2.6 3.1 3.7 4.2 5.9 7.4
Co-58 1.6 2.0 2.8 3.4 4.0 4.6 6.4 7.9
Co-60 1.7 2.2 3.1 3.7 4.4 5.1 7.1 8.9
Fe-59 1.7 2.2 3.1 3.7 4.4 5.1 7.0 8.8
Tc-99m 1.1 1.4 2.0 2.4 2.9 3.3 4.6 5.7

Take advantage of the wide variety of processing possibilities

  1. Bored holes and cut-outs available in the sizes you need
  2. RD glass comes in a curved shape upon request.
  3. Screen printing application and sandblasting: Logos and important information can also be applied individually.
  4. RD 50® is much thinner than acrylic glass yet has the same effect.
SCHOTT radiation shielding glass with bored holes and cut-outs
SCHOTT RD Glass is available with bored holes and cut-outs in every size.
Curved radiation shielding glass from SCHOTT
SCHOTT RD Glass can be curved upon request.
Screen printed and sandblasted SCHOTT RD Glass
SCHOTT RD Glass can be screen printed and sandblasted.
SCHOTT RD 50® Glass in comparison to acrylic glass
SCHOTT RD 50® is much thinner than acrylic glass yet has the same effect.

Disinfection of Radiation Shielding Glass

  • only use water, a mild detergent and a soft cloth
  • RD 50® can be disinfected using commercially available disinfectants that SCHOTT has approved. Disinfection using ultraviolet irradiation is also possible
  • radiation shielding glass should never be exposed to moisture or temperature fluctuations in conjunction with moisture and acidic air
  • only use a sealant that is free of acids and alkaline substances (e. g. acetic acid, ammonia) during installation. Adhesive labels can cause discoloration if the adhesive reacts with the glass surface.
  • do not remove the protective film from radiation shielding glass RD 50® until immediately before installation. Do not use any sharp objects to remove it!

Window or door installation

  • Please follow the on-site requirements of DIN6812 when installing RD 50®.
  • Sufficient radiation protection overlap must definitely be ensured during installation.
SCHOTT radiation shielding glass - window or door installation
Window or door installation with radiation shielding glass RD 50®.

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