Siemens Dura 422-MV
Siemens Dura 422-MV tube for Somatom Emotion 6, 16 systems
Key Features
- Liquid metal bearing (LMB): Eliminates conventional ball bearings, reducing vibration and extending tube life.
- High thermal loading capability: Designed for continuous helical CT scanning with rapid heat dissipation.
- Rotating tungsten anode: Optimized for high X-ray output and prolonged anode life.
- High-performance cooling: Oil-filled housing with integrated thermal management.
- Optimized for Siemens IRIS technology: Allows higher effective tube current while maintaining thermal limits.
The Siemens DURA 422-MV is a high-performance liquid-bearing rotating anode X-ray tube designed for Siemens multi-slice CT scanners, including the SOMATOM Emotion 6, Emotion 16, and SOMATOM Scope Power. It is intended for continuous clinical CT imaging with high thermal capacity and long service life
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Siemens Healthineers |
| Model | DURA 422-MV |
| Tube Type | Rotating anode CT X-ray tube |
| Bearing Type | Liquid metal bearing |
| Maximum Generator Power | 50 kW |
| Tube Voltage | 80, 110, 130 kV |
| Tube Current Range | 25–345 mA |
| Equivalent Maximum Tube Current (IRIS) | 627 mA |
| Anode Heat Storage | 5 MHU (equivalent to 9 MHU with IRIS technology) |
| Cooling | Oil-cooled tube housing |
| Focal Spots | 0.5 × 0.8 mm and 0.7 × 0.8 mm |
| Gantry Aperture Compatibility | 70 cm |
| Application | Diagnostic CT imaging |





