Which protective equipment typically requires the greater lead thickness?

• A. Protective glasses
• B. Protective apron
• C. Protective gloves
• D. Lead-lined room

Answer: (B)

Lead shielding thickness is chosen to protect the tissues most at risk in the area you’re shielding. The torso covers the chest and abdomen, where many radiosensitive organs reside, so the protective apron is designed with thicker lead-equivalent material to provide substantial attenuation against scattered radiation during procedures. Protective glasses and gloves protect smaller, more localized areas and usually require less lead thickness. A lead-lined room provides shielding for the whole workspace and isn’t worn as equipment, so it isn’t compared in the same way as portable protective gear. So among personal protective items, the apron typically requires the greatest lead thickness to protect the core of the body.