Access Door Shield for Radiation Shielding

Product Specifications

Technical details and manufacturing context for Access Door Shield

Definition

The Access Door Shield is a critical component of Radiation Shielding Structures, specifically engineered to provide effective radiation attenuation at access points while maintaining necessary functionality for entry and exit. It integrates with the main shielding structure to ensure continuity of protection, preventing radiation leakage through door openings in facilities such as nuclear plants, medical radiation therapy rooms, and industrial radiography installations. The shield is constructed from high-density materials, including lead, tungsten alloy, steel, and boron-doped polyethylene, arranged in overlapping or interlocking configurations to create a robust radiation barrier. When the access door is closed, the shield forms a continuous protective layer with the surrounding structure, blocking or significantly reducing the transmission of ionizing radiation through the doorway. The component is available in custom sizes ranging from 600 to 2000 mm nominal size, with design pressures from 1.0 to 1.6 MPa per and design temperatures from -20 to 200 °C. Leakage rate is class B per ISO 15848-1, with a maximum of 1×10⁻⁶ Pa·m³/s. Radiation shielding thickness ranges from 50 to 200 mm lead or concrete equivalent. Surface finish for sealing surfaces is Ra 0.8–1.6 μm per ISO 1302. Operating pressure is 0.8–1.4 MPa, and operating temperature is -10 to 150 °C. Sealing materials include EPDM or FKM per ASTM D2000, and body materials are SS304 or SS316 per ASTM A240. Weight ranges from 150 to 800 kg depending on size and shielding thickness. Ingress protection is IP54 to IP65 per IEC 60529. All values are reference ranges and must be verified with the manufacturer for specific models and applications.

Working Principle

The Access Door Shield operates by utilizing high-density materials such as lead, tungsten alloy, steel, and boron-doped polyethylene, arranged in overlapping or interlocking configurations. These materials absorb and scatter ionizing radiation, reducing its intensity. When the door is closed, the shield aligns with the surrounding shielding structure, creating a continuous barrier that prevents radiation leakage through the doorway. The effectiveness depends on the material's density and thickness, as well as the integrity of the seals and joints. The design ensures that the shield maintains its protective function while allowing for necessary entry and exit operations.

Common Materials

Lead, Tungsten alloy, Steel, Boron-doped polyethylene

Technical Parameters

Parameter	Typical range	Notes & selection driver
Nominal Size	600–2000 mm	Custom sizes available on request
Design Pressure	1.0–1.6 MPa
Design Temperature	-20–200 °C	Higher temperatures require special seals
Leakage Rate	≤1×10⁻⁶ Pa·m³/s	Class B per ISO 15848-1ISO 15848-1
Radiation Shielding Thickness	50–200 mm	Lead or concrete equivalent
Surface Finish	Ra 0.8–1.6 μm	For sealing surfacesISO 1302
Operating Pressure	0.8–1.4 MPa	Within design pressure range
Operating Temperature	-10–150 °C	Continuous operation
Sealing Material	EPDM/FKM	FKM for higher temperaturesASTM D2000
Body Material	SS304/SS316	316 for corrosive environmentsASTM A240
Weight	150–800 kg	Depends on size and shielding thickness
Ingress Protection	IP54–IP65	IP65 for outdoor installationIEC 60529

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM

Shielding Panel Part
Primary radiation attenuation element

Material: Lead or tungsten composite
Sealing Mechanism
Ensures radiation-tight closure between door and frame

Material: Neoprene or specialized polymer
Hinge System
Allows door movement while maintaining shielding integrity

Material: Stainless steel
Interlock System
Prevents door opening when radiation source is active

Material: Steel and electronic components

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Radiation Shielding Structure

View system integration details

Manufacturers of Access Door Shield

Manufacturer profiles associated with Access Door Shield.

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Frequently Asked Questions

What materials are used in the Access Door Shield?

The Access Door Shield can be made from lead, tungsten alloy, steel, or boron-doped polyethylene, as listed in the directory. The specific material and configuration depend on the application and must be confirmed with the manufacturer.

What are the standard sizes and pressure ratings?

The nominal size ranges from 600 to 2000 mm, and the design pressure is 1.0 to 1.6 MPa. These are reference ranges; actual values must be verified for the specific model.

How is the leakage rate specified?

The leakage rate is class B per ISO 15848-1, with a maximum of 1×10⁻⁶ Pa·m³/s. This is a procurement reference and does not guarantee compliance; verification with the manufacturer is required.

What are the operating temperature limits?

The design temperature range is -20 to 200 °C, and the operating temperature range is -10 to 150 °C. Higher temperatures may require special seals, so consult the manufacturer for specific conditions.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification

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pressure:	0 to 15 psi differential
temperature:	-40°C to +150°C
seal integrity:	Maintained under cyclic door operation
radiation shielding:	Up to 10^6 rads total dose

Access Door Shield

Product Specifications

Applied To / Applications

Industrial Ecosystem & Supply Chain Structure

Application Fit & Sizing Matrix

Reliability & Engineering Risk Analysis

Compliance & Manufacturing Standards