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Lead doors are specialized protective facilities designed to shield against ionizing radiation, such as X-rays and gamma rays. They are widely used in hospital radiology departments, CT rooms, nuclear medicine departments, and industrial flaw detection settings to protect personnel from radiation exposure.
Lead doors are specialized protective facilities designed to shield against ionizing radiation, such as X-rays and gamma rays. They are widely used in hospital radiology departments, CT rooms, nuclear medicine departments, and industrial flaw detection settings to protect personnel from radiation exposure.
Core Principles and Materials
The core protective principle of lead doors relies on the high density of the heavy metal lead (Pb). When penetrating radiation like X-rays or gamma rays passes through lead plates, it undergoes significant attenuation through three physical mechanisms: the photoelectric effect, Compton scattering, and the electron pair effect, thereby substantially reducing radiation dose.
Medical lead doors typically employ high-purity lead plates (e.g., 99.99%) as shielding layers, often combined with specially densified boards to form composite structures for enhanced protection.
Technical Features and Design
Modern lead doors integrate multiple advanced technologies to enhance safety and practicality:
Smart Interlock System: Ensures automatic triggering of warning or interlock devices when the door opens, preventing radiation leakage.
Flexible Sealing Technology: Achieves tight contact between the door and wall using high-quality sealing strips, preventing radiation leakage through gaps.
Lightweight Design: Utilizes new materials or structural optimization to reduce door weight, facilitating operation without compromising protective performance.
Diverse Models: Tailored for specific applications, including modular lead doors (suitable for limited spaces), parent-child doors (combining main and auxiliary doors), and impact-resistant lead doors (enhanced durability).
Application Advantages
Lead doors effectively block over 90% of radiation doses. Their double-layer lead plate construction and high sealing integrity ensure long-term reliability.
Additionally, intelligent safety features (such as automatic sensing and fault alarms) further enhance user experience.
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