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RUBY Modular QA Phantoms

Base phantom or head phantom. Multiple inserts. System QA. Linac QA. Patient QA.

All essential QA applications.
Comprehensive testing of the entire treatment chain.

RUBY offers a unique combination: a compact, easy-to-setup base phantom, the head phantom, and highly versatile test inserts. RUBY provides you with a simple, yet comprehensive solution that helps you evaluate the entire radiotherapy treatment process.

Its scalable, modular design makes it easy for you to stay flexible. A continuously expanding range of inserts helps you to meet QA requirements for evolving treatment techniques. Customize RUBY to your specific needs.

Choose your insert and start testing.

The RUBY Phantoms for Your Changing Needs

RUBY base phantom

Perform integrated tests of the entire treatment chain from imaging to planning and verification with one basic phantom.

Add and expand QA capabilities when needed.

RUBY is the new modular phantom platform for radiotherapy QA. It comes with a variety of exchangeable, application-specific inserts that satisfy all test requirements in a modern treatment facility.

RUBY head phantom

An increasing number of special stereotactic radiations are performed with couch extensions equipped with head shells.

For this type of application, the RUBY system can be combined with the RUBY head phantom. This is compatible with all inserts containing CT markers that indicate the central position of the inserts.

The RUBY head phantom has been successfully tested with the Brainlab as well as the Encompass (QFix) mask systems.

RUBY - Manufactured inhouse at our modern workshop with sub-millimeter precision:

The RUBY Inserts

Adaptive radiotherapy

Perform End-to-end QA for adaptive radiotherapy with the System QA - Adaptive Insert.

Key Features

  • Two different organ sets consisting of bladder, prostate, and rectum
  • End-to-end testing of adaptive radiotherapy

HU/density calibration

Perform HU/density calibration using the RUBY Electron Density Insert.

Key Features

  • Very low density lung-equivalent material for lung treatment planning
  • Four different high density metal materials for considering implants
  • For dose measurements, an ionization chamber can be positioned instead of material
  • All materials are encapsulated for safe handling
  • Software supported automatic workflow for HU/density calibration (work in progress)

RUBY electron density materials

From very low lung density material to implant material: Choose from 19 different electron density plugs.

Key Features

  • Tissue-equivalent materials of highest quality according to ICRU report 44 and 46
  • Very low density lung-equivalent material with relative electron density of 0.07
  • All materials are encapsulated for safe handling

Multiple metastasis applications

Perform System QA for the non-isocentric treatment of multiple metastases, with the System QA MultiMet insert.

Key Features

  • Dedicated to the verification of non-isocentric treatment techniques with or without couch rotation
  • Enables the positioning of three detectors at different positions within the insert
  • Detector positions simulate the locations of three brain metastases treated simultaneous using a single isocenter
  • Three bone equivalent cylinders embedded to provide contrast for positioning using kV imaging systems

System QA

Choose the System QA insert for comprehensive end-to-end testing with one single insert. 

Key Features

  • MRI visibility in all commonly used sequences (T1, T2 and FLAIR at 1.5 T) – no additional components required
  • ICRU-based tissue-equivalent materials (brain, lung, bone) for verification of dose calculations at different tissue densities
  • CT and MRI cavities for accurate verification of the CT/MRI image fusion algorithm of treatment planning systems
  • Point dose measurements with different detector types using the same insert

Linac QA

Perform alignment checks of the entire system, including conventional as well as 6D couches, with the Linac QA insert.

Key Features

  • System alignment and isocenter checks  with one single insert
  • Daily checks of IGRT positioning accuracy as recommended in  AAPM TG-179 and TG-142
  • Optional tilting base for 6D couch QA
  • Tissue-equivalent bone structures for enhanced visibility in kV and MV images
  • Ceramic MV visible sphere at isocenter for easy Winston-Lutz testing
  • Automated analysis of EPID images with optional PTW  IsoCheck epid  software
  • Integrated with Track-it

Patient QA

Select the Detector insert for measurement-based dose verification of patient treatment plans.

Key Features

  • Fast, accurate point dose measurements with different detector types
  • “Plug and Measure” convenience using detector  holders – no need to replace phantom or exchange inserts
  • Dose verification of non-coplanar treatment plans

Use the “Film” insert for high-resolution dose distribution measurements in a plane using radiochromic films.

RUBY in Clinical Use

Explore how RUBY supports your QA needs.

Technical Specifications

Design Polyhedron phantom with octahedral symmetry (10 cm side length) and cubic hole for QA test inserts in phantom center    
Laser Alignment Marks: Black: phantom center
Gray: translational shift
- coronal: 18 mm
- transversal: 14 mm
- sagittal: -25 mm
Red: translational and rotational shift
- coronal: -12 mm, rotation -1°
- transversal: -10 mm, rotation +2.5°
- sagittal: 15 mm, rotation -1.5°
   
Material: Polystyrene    
Density: 1.05 g/cm³    
Dimensions: 241.4 mm x 231.4 mm x 241.4 mm (W x D x H)    
Weight: 6.7 kg    
Design Head-shaped phantom with cubic hole for QA test inserts in phantom center    
Laser Alignment Marks: Black: phantom center
Gray: translational shift
- coronal: 18 mm
- transversal: 14 mm
- sagittal: -25 mm
   
Material: Polystyrene    
Density: 1.05 g/cm³    
Dimensions: 181 mm x 231.42 mm x 229.35 mm (W x D x H)    
Weight: 3.0 (without insert) kg    
Design: Cubic insert with automatic locking mechanism, containing 9 cylindrical CT markers (three for each detector position),
three tissue-equivalent Ø 8.5 mm bone rods in the volume, three detector boreholes
Detector holders for: Semiflex 3D ionization chamber (31021), Semiflex ionization chamber (31010), PinPoint® 3D ionization chamber (31022), microSilicon diode (60023), microDiamond® ( 60019 )
Material: Polystyrene
Density: 1.05 g/m³
Density of ICRU-based bone-equivalent material: 1.68 g/m³
Dimensions: 118 mm x 241.4 mm x 118 mm (W x D x H)
Weight: 2.5 kg
Design Cubic insert with automatic locking mechanism, containing three cylindrical CT markers, multiple cavities and a detector borehole in the center.
Detector holders for: Semiflex 3D ionization chamber (31021), Semiflex ionization chamber (31010), PinPoint® 3D ionization chamber (31022),
microSilicon diode (60023), microDiamond® ( 60019 )
   
Cavities: Three cavities with MRI-visible material:
Ø 25 mm, Ø 15 mm und Ø 10 mm
Three cavities with tissue-equivalent, CT-visible material:
Lung, brain and bone (according to ICRU-44 /-46 standards)
   
Material: Polystyrene    
Density: 1.05 g/m³    
Density of ICRU-based tissue-equivalent materials      
Lung: 0.24 g/m³    
Brain: 1.04 g/m³    
Bone: 1.68 g/m³    
Dimensions: 118 mm x 241.4 mm x 118 mm (W x D x H)    
Weight: 2.4 kg    
Design Homogeneous cubic insert with automatic locking mechanism, containing three cylindrical CT markers, a ceramic MV visible 8 mm sphere in the center, four tissue-equivalent Ø 12 mm bone rods in the volume    
Material: Polystyrene    
Density: 1.05 g/m³    
Density of ICRU-based bone-equivalent material: 1.68 g/m³    
Dimensions: 118 mm x 241.4 mm x 118 mm (W x D x H)    
Weight: 2.5 kg    
Design Base plate with red laser alignment marks for correct setup of RUBY phantom. Requires RUBY insert for “LINAC QA”.    
Material: Polystyrene    
Density: 1.05 g/m³    
Dimensions: 130 mm x 130 mm x 20 mm (W x D x H)    
Weight: 0.25 kg    
Design Homogeneous cubic insert with automatic locking mechanism, containing three cylindrical CT markers and a detector borehole in the center. Dummy plug for CT scans included.
Detector holders for:
Semiflex 3D ionization chamber (31021),
Semiflex ionization chamber (31010),
PinPoint® 3D ionization chamber (31022),
microSilicon diode (60023),
microDiamond® ( 60019)
   
Material: Polystyrene    
Density: 1.05 g/m³    
Dimensions: 118 mm x 241.4 mm x 118 mm (W x D x H)    
Weight: 2.5 kg    
Design Homogeneous cubic insert for radiochromic films with automatic locking mechanism and three cylindrical CT markers.
Plastic needle for film perforation included.
   
Material: Polystyrene    
Density: 1.05 g/m³    
Dimensions: 118 mm x 241.4 mm x 118 mm (W x D x H)    
Weight: 2.5 kg    

RUBY Sets for All Tasks

  RUBY All in L981660 RUBY System QA L981636 RUBY Linac QA L981637 RUBY Patient QA L981638 RUBY head phantom MultiMet L981654
RUBY base phantom
T40072.1.001
X X X X --
RUBY head phantom
(case included) T40072.1.800
X -- -- -- X
RUBY insert Patient QA –
detector T40072.1.100
X -- -- X --
RUBY insert Patient QA –
film T40072.1.400
X -- -- X --
RUBY insert Linac QA
T40072.1.200
X -- X -- --
RUBY tilted base
T40072.1.030
X -- X -- --
RUBY insert System QA T40072.1.300 X X -- -- --
RUBY insert System QA – MultiMet T40072.1.500 X X -- -- X
RUBY case T40072.1.040 X X X X --
RUBY detector holders X X -- X X

PTW Podcast "Daily Routine with the RUBY Modular QA Phantom"

"Daily Routine with the RUBY Modular QA Phantom"

End to end testing at the Halcyon system, check of CT / MRI registration, QA of multi metastases treatment techniques and much more!

 

Get More Information

Brochure
RUBY Adaptive Radiation Therapy ( 5 MB )
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RUBY Applications in Proton Therapy ( 4 MB )
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RUBY Linac QA Set Elekta IGRT ( 5 MB )
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RUBY Applications in High-Precision Radiotherapy ( 6 MB )
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RUBY Phantom ( 943 KB )
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FLASH QA Tools ( 2 MB )
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