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Airtightness and radiation protection of lead doors:Lead doors, as specialized access facilities for blocking radiation, their airtightness and radiation protection are crucial factors in design and selection. Below is a detailed introduction to the airtightness and radiation protection of lead doors:
The airtightness of lead doors refers to their ability to prevent external air from entering or internal air from leaking out when closed. Good airtightness is crucial for maintaining a constant environment in the work area and preventing radiation leakage.
Design Features of Airtight Doors
Sealing System: Air-tight doors typically employ special sealing systems, such as rubber gaskets, to ensure a tight fit with the door frame when closed, achieving excellent airtightness.
Structural Design: Some airtight door designs cater to specific environment requirements such as operating rooms, featuring V-shaped track and arc recessed designs for effective sealing upon closure.
2. Actual Application of Airtight Doors
Hospital Applications: In a hospital setting, particularly in areas requiring radiation shielding such as CT and DR rooms, the air tightness of sealed doors is crucial in protecting medical staff and patients from unnecessary radiation exposure.
Safety Considerations: Airtight doors also serve as a protective measure, typically made of high-density anti-theft steel wire mesh, offering shock resistance and anti-penetration properties.
Radiation protection of lead doors
Radiation shielding capability of lead doors refers to their ability to block radiation. Lead doors are typically made of lead material due to its high atomic number, which effectively absorbs and scatters X-rays and other types of radiation.
Radiation protection principle of lead doors
Shielding Effect: Lead doors utilize a certain thickness of lead material to set up a lead barrier between the human body and the radioactive source or scatterer, thereby reducing the radiation dose received by the human body.
Ray Characteristics: The primary effect of X-rays emitted by X-ray devices on the human body stems from external radiation damage to the organism. Shielding and protection can effectively reduce the dose received by personnel.
2. Selection Criteria for Lead Doors
Shielding Thickness: When selecting a lead door, the appropriate shielding thickness should be determined based on factors such as the radiation source characteristics, room area (distance from the radiation source to the reference point), and other considerations.

Other considerations: In addition to airtightness and radiation protection, factors such as the lead door's lifespan, ease of maintenance, and compatibility with the surrounding environment should also be taken into account.

Single-leaf lead door, as the name implies, consists of a single door panel, suitable for smaller entryways. This lead door structure is relatively simple and is commonly used in spaces with limited space, such as laboratories, small medical radiology departments, etc. The single-leaf lead door is more flexible in opening and closing, operates simply, and due to its single structure, the cost is relatively lower.
Single-leaf lead door operation
Single-Sided Opening: This is the most common opening method for single-leaf lead doors. The door leaf is connected by hinges and can open to one side or both sides. In smaller spaces, the single-sided opening ensures sufficient passage space while maintaining the simplicity of the structure and ease of operation.
Double-leaf Lead Door Introduction
A double-leaf lead door consists of two panels separated by a certain distance, allowing for either separate or simultaneous opening. This type of lead door is suitable for larger entrances and exits, such as in large medical radiology departments or radiation therapy rooms, where ample passage space or frequent entry and exit is required. The double-leaf lead door offers significant advantages in terms of protection, passage space, and safety.
The features of the double-leaf lead door include:
Safety and Reliability: Made with high-quality lead material, offering strong impact resistance and anti-theft features, effectively preventing unauthorized access.
Ease of Access: The two doors can be opened individually or simultaneously, providing convenient entry and exit for users without the need to wait for others to finish their operations.
High space utilization: Compared to traditional single-leaf lead doors, double-leaf doors require only half the width to enter, saving indoor space and better accommodating narrow passageways.
High durability: Crafted with special processes and treated with special surface finishing, it is corrosion and weather-resistant, able to withstand harsh environments for extended periods without damage.
Double-leaf lead door opening and closing method
Double-Swing Doors: Ideal for spacious corridors, these doors open outward on both sides, leaving a clear passage in the middle to provide greater space for entry and exit. This opening style effectively accommodates the needs of large groups or heavy equipment.


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