OCTAVIUS II is a 2D dose verification system for pre-treatment QA of rotational IMRT & VMAT deliveries in radiotherapy. The octagonal phantom geometry allows flexible adaptions of the measurement setups to clinically relevant beam directions. An integrated air cavity ensures uniform directional dose response at arbitrary gantry angles during measurements with PTW OCTAVIUS detectors.

The user interface VeriSoft provides advanced 2D dose comparison and evaluation tools necessary for treatment plan verification, such as 3D Gamma analysis, Profile and dose distribution overlays, Dose-difference distributions, Failed points analysis, etc.

  • 2D dose verification of rotational treatments in radiotherapy
  • Uniform directional dose response at arbitrary gantry angles – No necessity for angular dependent correction factors
  • Flexible positioning for measurements in the clinically relevant directions
  • Ready for measurement - No commissioning necessary
  • Cutting-edge detector technology: Gold standard ionization chambers
  • For all major treatment and delivery techniques, including IMRT & VMAT
  • Simplified workflow - from measurement to case-related monitoring of QA results with optional Track-it
  • Water-equivalent phantom material – No density scaling artifacts
  • Extended dose rate range for FFF beams – No separate detectors required
  • Full field coverage with 2D Merge
  • Suitable for TomoTherapy
  • Chamber plate
    Insert plates for the OCTAVIUS phantom with cavities to allow point measurements with up to nine 0.125 cm3 semiflex ionization chambers. Unneeded cavities can be closed with blind plugs
  • OCTAVIUS Film Insert
    Polystyrene holding device for the OCTAVIUS phantom to insert a GafChromic®EBT / EBT 2 film (max. size 20.32 cm x 25.4 cm, 8“ x 10“) for film measurements
  • Inhomogeneity Phantom
    In combination with an accessory plate the acrylic inhomogeneity phantom can be inserted into the OCTAVIUS phantom to test the treatment planning system with consideration of different inhomogeneity inserts
  • OCTAVIUS trolley
    Robust, functionally designed trolley to conveniently store and move OCTAVIUS phantom and detector.
  • Bronze / Silver / Gold Service Contracts for OCTAVIUS 4D

OCTAVIUS II includes the following components:

  • OCTAVIUS II Phantom
    Octagon-shaped, multi-purpose solid body phantom for IMRT QA, optimized for rotational dosimetry. Includes detector plate for merged measurements inside the phantom.
  • OCTAVIUS Detector
    OCTAVIUS II includes the following high-resolution ionization chamber array:
    • OCTAVIUS Detector 1500 with 1405 vented ionization chambers
      The array includes detector interface for power supply and data transfer.
  • VeriSoft Patient Plan Verification Software
    Intuitive, workflow-oriented software platform for patient plan verification with PTW OCTAVIUS systems. Offers advanced tools for visual and quantitative dose comparison and evaluation, including 3D volume analysis, Failed points plots and connectivity to data-management platform Track-it.
Design: Octagon-shaped solid body phantom with two exchangeable bottom parts (LINAC phantom with air cavity, CT phantom)
Dimensions: Diameter 320 mm, length 320 mm
Weight: 24 kg
Material: Polystyrene
Density: 1.05 g/cm³
Detector type: Plane-parallel vented ionization chambers
Number of detectors: 1405
Detector size: 4.4 mm x 4.4 mm x 3 mm
(0.06 cm³)
Detector spacing: 7.1 mm center-to-center
Max. field size: 27 x 27 cm²
Max. measurement points: 2916 (four measurements)
Reproducibility: ≤± 0.5%
Dead time: zero
Repetition rate: 100 ms
Measured quantities: absorbed dose to water (Gy),
absorbed dose rate to water (Gy/min)
Resolution: Dose: 0.1 mGy, Dose rate: 0.1 mGy/min
Measurement range: (0.5 ... 48 Gy/min)
Reference point: 7.5 mm below the surface of the array
Housing material: PS, GRP (frame)
Dimensions: 30 cm x 46.7 cm x 2.2 cm
(W x D x H)
Weight: 6 kg
Power supply: (100 ... 240) VAC; (50 ... 60) Hz
PC connection: Ethernet
Dimensions 93.6 cm x 64 cm x 60 cm, height of lifting plate: 85.5 cm    
Weight 35.5 kg    
Operating system: Microsoft® Windows®
(Windows 7 Professional x32/x64,
Windows 8 Professional x32/x64
Windows 10 Pro x32/x64))
Processor: Multi-core processor, 2.3 GHz or better
Memory (RAM): min. 4 GB, 8 GB recommended
Hard disk: min. 500 MB of free space for application software and 1.5 GB of free space for .NET Framework 2.0, 3.5 and 4.0+
Screen resolution: 1280 x 1024 or higher
Interfaces: Network interface
Other: Windows® Internet Explorer® 8.0 or higher, Adobe® Reader® 7.0 or higher

Related Downloads

OCTAVIUS at MRIdian linac ( 2 MB )
OCTAVIUS CT Scan Usage ( 5 MB )
OCTAVIUS Systems ( 4 MB )
OCTAVIUS IMRT QA Systems Overview ( 168 KB )
Radiation Medicine Catalog ( 9 MB )

Related Literature

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