Blue PhantomCOMPACT
2D Water Phantom Solution for Beam Commissioning & Annual QA
Blue PhantomCOMPACT is a high-end water phantom with smaller dimensions and minimized weight for easy transport, including between satellite hospitals.
Used for Workflow
Commissioning and Annual QA RT

Compact footprint
Unlimited usability
Easy to transport
Optional Rotating Table

Unlimited usability & compact footprint
The Blue PhantomCOMPACT is a two-dimensional radiation field analyzer, designed for commissioning, acceptance testing, and routine QA of linear accelerators. Each component of the system is carefully designed for top performance, ensuring the same quality and versatility found in all IBA Dosimetry water phantoms.
- Promotes easy transportation for more efficient use, e.g., for annual checks
- Optimized for satellite hospitals and commissioning service providers
- 2D high-end water phantom with smaller dimensions and minimized weight

Innovative & independent QA to maximize patient safety
Blue PhantomCOMPACT is powered by myQA Accept, our trusted and well-established software, providing the following benefits:
- Validation of pre-commissioned machines
- Pre-configured beam data validation
- QA of your existing beam models (TPS QA)
- Compatible with any TPS exporting in DICOM format

Optional Rotating Table
- Designed to enable the rotation of Blue PhantomCOMPACT and Blue Phantom Helix 2D water phantom systems
- Easy rotation of the filled water phantom for in-plane and cross-plane measurements; avoids the need to drain the water phantom
- Supports seamless manual rotation of the phantom and exact indexing lock fixation at 0°, 45°, 90°, etc.
- Supports measurements inside the Varian Halcyon®/Ethos™ bore and also suitable for use with conventional linac measurement sessions
Watch the demonstration below
Technical specifications
Blue Phantom COMPACT
Scanning area in water: | 478 x 410 mm (X/Z) |
Speed (max.): | 50 mm/s; 25 mm/s (scanning) |
Position accuracy: | ± 0.1 mm |
Position reproducibility: | ± 0.1 mm |
Wall material: | 15 mm PMMA |
Water volume: | 116 l (approx.) |
Outer dimensions: | 645 x 407 x 550 mm (152 kg max.) |
Detector holder material: | PDVF |
Technical data is subject to change without prior notice. Depicted product images and specifications may differ from the actual scope of delivery.
Common Control Unit
Maximum resolution: | 0.5 fA at 0.4 nA full scale |
5 fA at 40 nA full scale | |
0.5 pA at 4 uA full scale | |
Full scale ranges: | 0.4 nA / 40 nA / 4uA |
Leakage current: | < 200 fA, typically <20 fA |
Time constant: | 20 ms |
Bias voltage range: | ± 50 through ± 500 V |
Common interface: | ETHERNET (100BaseT) |
Main supply: | 100 – 240 V AC ± 10 %; 50/60 Hz |
Technical data is subject to change without prior notice. Depicted product images and specifications may differ from the actual scope of delivery.
Find more resources here
Brochures
Clinical videos
Commissioning Halcyon® at Queen’s Hospital with IBA Dosimetry Water Phantom
Presentation of clinical experience with the Blue Phantom for independent beam validation of the Varian Halcyon®. Presented by Liz Crees, Head of Radiotherapy Physics, Queen’s Hospital, Romford, UK
Seamless rotation of your 2D water phantom
Clinical webinars
Webinar: Small Field Dosimetry – Tips & Tricks
Comprehensive presentation about challenges and considerations for clinical small photon field dosimetry based on international standards (IAEA, AAPM etc.). Learn about tips and tricks to achieve high-quality results.
North Estonia Medical Centre, Tallinn, Estonia