What thickness of lead should be used for eye shielding according to NCRP 102?

The recommended thickness of lead for eye shielding, according to NCRP Report No. 102, is 2 mm of lead (Pb). This specification is established to provide adequate protection against radiation exposure to the lenses of the eyes during fluoroscopic procedures. The eyes are particularly sensitive to radiation, and the lead thickness is designed to attenuate scattered radiation effectively, thereby reducing the risk of radiation-induced cataracts and other ocular damage.

The choice of 2 mm of lead reflects a balance between adequate protection and the practicality of use in clinical settings. Thicker lead could provide more protection but may also be less comfortable or practical for the user and the patient. It's important that the shielding used complies with established safety standards to maintain the health and safety of both patients and healthcare workers in radiology environments.