Radiation therapy system multileaf collimator Standard MLC EMM120

for radiosurgery systems

Overview
The EMM120 Standard MLC is an OEM-ready multileaf collimator designed for clinical and research LINAC integration. It delivers a 40×40 cm field using 120 precision-engineered tungsten leaves and a compact, serviceable housing for easy installation and maintenance.

Leaf Configuration

• Standard: 120 leaves
• Central leaf width: 5 mm
• Peripheral leaf width: 10 mm
• Shuttle system enabling full (101%) overtravel

Motor & Drive System

• Industry-standard DC motors with integrated encoders
• High-speed leaf motion > 50 mm/s at 200 Hz control frequency
• Micropositioning accuracy < 0.2 mm
• 40 kHz double-loop PID control for repeatable performance

Control Integration

• TCP/IP and UDP protocol support (Ethernet)
• Real-time motion verification with closed-loop feedback
• Options for secondary feedback encoders for redundancy

Materials & Durability

• 80 mm leaf height, tungsten (≥95% W)
• Ultraprecise machining with tongue & groove leaf guidance
• Interleaf leakage << 1% for optimal dose conformity

Advantages and Benefits

• 120-leaf 40×40 cm setup enabling submillimeter field accuracy for IMRT and VMAT
• Tungsten leaf geometry reduces penumbra and minimizes leakage
• Open TCP/IP and UDP interfaces for straightforward LINAC integration
• DC drive units deliver >50 mm/s for dynamic beam shaping
• Compact, modular design for OEM use and simplified servicing
• CE-documented; ISO 13485 manufactured and MDR-compliant

Precision & Performance
High-resolution PID control and integrated encoders ensure submillimeter positioning repeatability required for stereotactic, VMAT and high-precision radiotherapy protocols.

Applications

• IMRT and VMAT beam modulation
• 3D-CRT and conformal therapy
• SRS and cranial treatments
• Thoracic and pelvic field shaping
• Prostate and head & neck radiotherapy
• FLASH research and prototype LINAC development

Manufacturing & Compliance
Designed and manufactured in Germany under ISO 13485. System is MDR-compliant with CE documentation; supplied as an OEM-ready, vendor-agnostic beam-shaping module.

Technical specifications

• Model: EMM120 Standard MLC
• Field size: 40 × 40 cm
• Leaves: 120
• Central leaf width: 5 mm
• Peripheral leaf width: 10 mm
• Leaf height: 80 mm tungsten (≥95% W)
• Interleaf leakage: << 1%
• Leaf speed: > 50 mm/s
• Control frequency: 200 Hz (motion), 40 kHz double-loop PID
• Micropositioning accuracy: < 0.2 mm
• Overtravel: shuttle system enabling full (101%) overtravel
• Control interfaces: TCP/IP, UDP (Ethernet) with real-time closed-loop feedback
• Integration: OEM-ready, modular mounting and open protocols for LINAC integration
• Standards: ISO 13485 manufactured, MDR / CE documentation available