Universal Radiation Protection Solution
Universal Radiation Protection Solution
I. Standard Dimensions of CT Room
1. Scan Room (Core Room)
- Minimum floor area: ≥30 ㎡
- Minimum single side length: ≥4.5 m
- Common standard dimensions
- Conventional 16/32/64-slice CT: 5.0 m × 6.0 m (30 ㎡)
- High-end CT (128-slice and above): 5.5 m × 6.5 m or 6.0 m × 6.0 m
- Clear height: ≥3.0 m; 3.2 m and above is recommended to reserve space for ceiling, air conditioning and pipelines
2. Control Room (Operation Room)
- Floor area: ≥15 ㎡
- Common size: approx. 4.0 m × 4.0 m
- Observation window layout: Facing the scanning area for clear patient observation
II. Key Requirements for CT Room Construction
1. Radiation Shielding Specifications
Ceiling shielding schemes
- Welded keel + fire retardant board + lead sheet
- Welded keel + lead-wood composite panel
- Barium sulfate layer on the floor of the upper floor
- Welded keel + barium sulfate shielding board
- Barium sulfate plaster on ceiling surface
Wall shielding schemes
- Barium sulfate plaster coating
- Welded keel + lead sheet
- Welded keel + barium sulfate shielding board
- Welded keel + lead-wood composite panel
- Single lead sheet lining
- Composite barium sulfate + lead sheet structure
Floor shielding schemes
- Barium sulfate concrete layer
- Lead sheet under floor screed
- Lead equivalency: Walls, ceiling and floor shall be ≥4.0 mmPb; acceptable shielding materials include barium sulfate shielding mortar, lead sheet, lead-wood composite panel and barium sulfate shielding board.
- Lead equivalency of shielding door and observation window: ≥4.0 mmPb.
- All holes for penetrating pipelines and wire trunkings shall be fully sealed with lead sheets to prevent radiation leakage.
- Mandatory door-machine interlock system: X-ray exposure is disabled if the door is not fully closed.
2. Structural & Load-Bearing Requirements
- Floor load capacity: ≥5.0 kN/㎡
- Equipment foundation or vibration isolation base is recommended for large CT scanners.
- Walls are suggested to be cast concrete or solid brick wall; lightweight hollow structures are prohibited.
- Opening dimensions for motorized radiation shielding door: ≥1400 mm (W) × ≥2000 mm (H)
- Opening dimensions for manual radiation shielding door: ≥800 mm (W) × ≥2000 mm (H)
- Opening dimensions of lead shielding observation window: ≥1200 mm (W) × ≥800 mm (H), with bottom edge 950 mm above finished floor.
- Ionizing radiation warning signs and operation indicator lights shall be installed outside both motorized and manual shielding doors.
3. Compliance & Inspection Procedures
A pre-construction radiation shielding assessment shall be completed prior to construction. Third-party acceptance radiation testing is required upon project completion to apply for the Radiation Safety License.
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Copyright: Shandong Hongxinyu Medical Technology Co., Ltd.
Factory: Liaocheng Economic and Technological Development Zone, Shandong Province, Liaohe Road and Yanshan Road intersection 50 meters south of the road east
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