Shielded door

RF-shieldedfor hospitalfor laboratory

Product Introduction
Motorized shielding door designed for PET-MRI rooms in hospitals and research laboratories. Provides electromagnetic shielding in static magnetic field environments (up to 3.0T) and accommodates high-frequency requirements with a multi-layer copper + aluminum composite structure and ventilation waveguide windows (cut-off frequency ≥ 2GHz). Triple-fold door option for space-efficient access.

Product Performance

• Process requirements: Copper plate welding uses seamless full welding.
• Contact resistance: Contact resistance at door/frame joints <0.01Ω.
• Insulation impedance: ≥1000MΩ (measured at 500V DC).
• Load-bearing capacity: Motorized door ≥500kg.
• Emergency unlocking: Manual emergency release device included.
• Non-magnetic design: Non-magnetic components (e.g., locks) to preserve magnetic field homogeneity.

Technical Parameters
frequency range： — SE Requirements： — Test Standard：
10kHz-100MHz — ≥100dB (at 150MHz ≥90dB) — GB/T 12190-2021
300MHz-1GHz — ≥80dB — ISO 11132-1
1GHz-10GHz — ≥70dB (Optional) — IEEE 299-2006

Application Fields

• Department of Radiology: Imaging diagnosis and interventional procedures using X-ray/gamma for anatomical and functional assessment.
• Department of Radiation Oncology: Localized therapeutic irradiation (X-rays, particle beams) for cancer treatment.
• Department of Nuclear Medicine: Diagnostic and therapeutic use of radiopharmaceuticals integrating imaging and therapy.

Technical specifications

• Shielding effectiveness: ≥100dB (10kHz–100MHz), ≥80dB (300MHz–1GHz), ≥70dB optional (1GHz–10GHz).
• Performance in 3.0T MRI environment: Shielding effectiveness ≥100dB at 150MHz.
• Structure: Multi-layer metal composite (copper + aluminum) for high-frequency shielding; triple-fold door option.
• Ventilation: Ventilation waveguide windows with cut-off frequency ≥2GHz.
• Copper plate finishing: Seamless full welding.
• Contact resistance between door and frame: <0.01Ω.
• Insulation impedance: ≥1000MΩ (measured at 500V DC).
• Motorized door load-bearing capacity: ≥500kg.
• Emergency release: Manual emergency unlocking device provided.
• Non-magnetic design: Use of non-magnetic components to preserve magnetic field uniformity.