What happens to the lead thickness requirement when protective curtains are overlapped?

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When protective curtains are overlapped, the lead thickness requirement increases because overlapping creates additional layers of lead material, which enhances the shielding effect against radiation. This is particularly important in environments where radiation exposure needs to be tightly controlled, as overlapping provides better attenuation and reduces the amount of radiation that can penetrate through the seams or edges of the curtain. Increased lead thickness ensures compliance with safety standards that protect individuals from harmful radiation exposure, thus elevating the effectiveness of the shielding in areas with potentially high radiation levels.

In contrast, if protective curtains did not overlap, a minimal lead thickness might suffice because there would be fewer pathways for radiation to penetrate. However, the overlapping introduces additional variables, requiring a reassessment of lead thickness to ensure maximum protection.