RD 30® is a lead-containing flat glass product that protects against gamma and X-ray radiation. Such radiation is used for diagnostic purposes in medical technology, in radiation therapy, or in industrial material test equipment. Because these types of radiation have a high potential to damage health, accidental exposure must be prevented at all costs. For this reason, transparent openings in medical devices or viewing ports in doors to radiological areas are protected by radiation shielding glass.
RD 30® from SCHOTT is the only radiation shielding glass product manufactured in Germany. It is an ideal and proven, high-quality protective solution for many X-ray applications. RD 30® is a monolithic glass that contains lead oxide and provides ≥ 0.5 mm Pb at 56 kV (see table). The Pb value is a measure of how protective a radiation shielding glass is. It is expressed in mm Pb, which is equal to the protection capacity of pure lead.
SCHOTT developed RD 30® lead glass specifically for safety in medical areas with lower levels of X-ray radiation, such as mammography workstations. At tube voltages of up to 150 kV, RD 30® glass offers a Pb of ≥ 0.5 mm. It is also often used in industrial X-ray test devices and is an important safety element in various scientific nuclear applications.
If you are searching for glass materials with higher lead equivalents or for more protective shielding capacity, please refer to our RD 50® datasheet.
To request a quote for original RD 30® sight glass windows, please click the button below:
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Thickness (mm) | Tolerance |
---|---|
6.00 | ±0.25 |
Smaller custom thicknesses are available upon request. |
RD 30® glass 6 mm thick | ||
---|---|---|
Tube Voltage (kV) |
Lead equivalent (mm Pb) |
|
< 50 | ≥ 0.5 | |
50 | ≥ 0.5 | |
56 | ≥ 0.5 | |
76 | ≥ 0.5 | |
80 | ≥ 0.5 | |
100 | ≥ 0.5 | |
110 | ≥ 0.5 | |
150 | ≥ 0.5 |
If you need thicker lead glass with thicknesses of up to 20 mm and a higher Pb value for increased shielding capacity and safety as required for nuclear applications, please visit our RD 50® datasheet.
Note: To ensure the continued performance and safety of leaded radiation shielding glass materials, read and follow the installation, cleaning, and maintenance instructions.
All data and specifications given are average guide values and are not guaranteed. Moreover, please consider the “Notes on Specifications”.
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Last update: July 08, 2025