Accuray CyberKnife S7
Family: CyberKnife · Modality: CyberKnife
Current-generation CyberKnife. Successor to the M6. Improvements focus on faster treatment delivery + tighter motion management + AI-assisted planning.
What changed vs M6
- Faster delivery — reduced treatment time per fraction via gantry / collimator optimization
- Synchrony AI tracking improvements — better real-time motion prediction
- Integrated couch-motion compensation
- Updated imaging + planning pipeline — Precision TPS tighter integration
- Dose rate — 1000 MU/min (matched to M6 on many protocols, faster on some)
Specs
- 6 MV compact linac on a 6-axis industrial robotic arm
- Real-time kV-kV orthogonal imaging for tracking
- Multi-leaf collimator (InCise 2) + fixed cones (legacy)
- Synchrony real-time motion tracking
- Iris variable collimator (legacy option)
- Precision TPS
Clinical positioning
Dedicated SRS / SBRT platform. Excels at moving targets (lung, liver, prostate) where real-time tracking matters more than sheer dose rate. Competes with Varian Edge + Elekta Unity (for moving-target SBRT cases).