Electronic Interlock X-Ray Protection Pass Box For Radiotherapy Centers

While providing basic cleanroom isolation functions, the X-ray Protection Pass Box's core function is shielding against ionizing radiation. It effectively blocks the penetration of X-rays, gamma rays, and other radiation, preventing radiation leakage through transmission channels and protecting operators from radiation hazards. It is a specialized device for use in radiology departments, nuclear medicine departments, and radiation laboratories.

Working Principle of the Radiation-Proof Pass-Thru Window

Physical Shielding

The pass-thru window features internal lead panels, and the observation window utilizes radiation-proof lead glass.

Lead absorbs high-energy ionizing radiation, such as X-rays and γ-rays, reducing radiation intensity through physical barrier protection, protecting both the operator and the surrounding environment.

Sealed Isolation

The double-door interlocking design prevents both doors from opening simultaneously, preventing air convection and cross-contamination.

High-pressure sealing rubber strips further ensure airtightness, preventing the spread of radioactive dust or gas into clean or non-radiation areas.

Visual Monitoring

The radiation-proof lead glass provides a transparent observation window, allowing operators to confirm the status of items without opening the window or door.

This reduces the number of openings and closings, minimizing radiation exposure and environmental contamination risks.

Safety Transfer Mechanism

An interlocking system or mechanical stop allows only one-way access during the transfer process, enhancing safety.

Materials for Radiation-Proof Transfer Window

Body

High-quality cold-rolled steel (surface electrostatically sprayed with plastic) for durability and a smooth appearance.

Stainless steel (SUS304/SUS316) offers strong corrosion resistance and is commonly used in medical, pharmaceutical, and nuclear medicine laboratories.

Radiation Shielding

Lead Plate: This is the core shielding material of the radiation-proof transfer window. Its thickness is determined by the radiation intensity of the location, generally ranging from 2mm to 10mm.

Lead plates are embedded between the body and the door to prevent radiation leakage.

Observation Window

Lead Glass: Blocks X-rays and γ-rays while maintaining transparency for easy observation.

Common thicknesses range from 8mm to 20mm, depending on the radiation intensity.

Seals and Hardware

High-pressure rubber strips: Ensure airtightness and prevent leakage of radioactive dust or gas.

Mechanical or electronic interlocks: Ensure both doors cannot be opened simultaneously, enhancing safety.

Applicable Environments

• Radiology department

• Nuclear medicine laboratory

• Isotope production workshop

• Radiograph room

• Radiotherapy center

• Other places where ionizing radiation is present

Specifications

FAQ

Q1: What types of environments are radiation-proof transfer windows suitable for?
A: Common applications include radiology departments, nuclear medicine laboratories, isotope production workshops, radiography rooms, radiotherapy centers, and other clean environments requiring radiation protection.

Q2: How is the thickness of the lead sheet in the transfer window determined?
A: The thickness of the lead sheet typically ranges from 2mm to 10mm, depending on the specific radiation source energy and dose. For example, thinner lead sheets may be suitable for ordinary X-rays, while thicker shielding may be required for high-energy γ-rays or environments with large equipment.

Q3: What is the difference between a radiation-proof transfer window and a standard transfer window?
A: Standard transfer windows are primarily used for clean isolation, while radiation-proof transfer windows add the shielding function of lead sheets and lead glass, ensuring cleanliness while preventing radiation leakage.

Dongguan Amber Purification Engineering Limited founded in 2008. As a leading company who provider of one-stop solutions for modular clean room. With over 16 years of experience in the clean room industry, we offer turnkey solutions for projects in diverse sectors such as hospital operating rooms, ICU, pharmaceutical facility, bio-lab, and so on. Our team of more than 20 skilled engineers brings extensive knowledge to all projects, from design and manufacturing to installation and after-sales service. Working from a 10,000+ square meter workshop, we produce a wide range of high-quality products, including modular operating room wall and ceiling panel, clean room door, air shower, fan filter units (FFU), pass box, surgical table, and medical washing sink.

From manufacturing to installation, Amber takes every step possible to ensure a high-quality service, earning respect and recognition from customers all over the world. As an example, we install parts in preset positions to ensure a high work efficiency. Our customers come from around the world, including America, Malaysia, Sri Lanka, Indonesia, Tanzania, Bangladesh, Uzbekistan and so on. They have been extremely pleased with our high-quality products and premium services, and we sincerely encourage new and prospective customers to contact us for any information, or for any problems concerning a modular clean room project. We are glad to work together with you and finally bring you the satisfied products.