What is the minimum radiation shielding requirement for glass in a radiographic room that may be exposed to the primary X-ray beam?

In a radiographic room, the minimum radiation shielding requirement for glass that may be exposed to the primary X-ray beam is determined by the need to protect personnel and patients from unnecessary radiation exposure. Glass located in areas where it may be exposed to the primary beam must have adequate shielding to absorb the high-energy photons produced during radiographic procedures.

1/8" of lead equivalent material is sufficient for shielding reflective of the typical exposure levels encountered in diagnostic radiography. This thickness can effectively attenuate the primary beam, significantly reducing the scatter radiation that personnel might be exposed to while working in or around the radiographic room.

The other thicknesses listed in the other choices are either too thin or excessively thick for standard radiographic practices, which may not be necessary for the levels of radiation typically encountered. The guidelines and standards for radiation safety set by organizations such as the National Council on Radiation Protection and Measurements (NCRP) support the use of 1/8" lead equivalent as an appropriate minimum thickness for these specific conditions.