Motorized water phantom for commissioning and quality assurance of MR-guided LINACs

Key figures
minutes setup time
minutes setup time
mm accuracy
mm accuracy
mm/s travel speed
mm/s travel speed

Stringent requirements from new MR LINAC technology

THALES 3D MR SCANNER – water phantom for commissioning and QA

"In 2016, Europe’s first MRIdian from Viewray was installed at the University Medical Centre Amsterdam UMC. The second installation followed a year later and both systems have been upgraded several times since then. During that time, I had the opportunity to test THALES extensively gaining valuable data for beam validation."

Daan Hoffmans
Physicist, Radiation therapy Amsterdam UMC



THALES 3D MR SCANNER was developed by LAP in collaboration with MR-Linac users and is a manu-facturer-independent measurement tool for quality assurance. Different MR-compatible detectors can be used.


Selected hardware and software components ensure measurement system stability and accuracy, which significantly surpasses standard requirements.


THALES 3D MR SCANNER has successfully passed the European CE conformity assessment pro-cedure and is cleared in the USA under 510(k) K200907.

Customizable and automated

Not only can you create individual measuring plans but you can also choose from predefined ones.


Integration of all workflows, from setup to data verification and storage, simplifies the comprehensive clinical tasks.

Easy to use

The water phantom and the THALES software can be used easily and intuitively ensuring efficient and productive workflows.

Levelling plate

Levelling plate

Use the levelling plate to position the phantom optimally on the couch. Due to the weight of the phantom filled with water the couch might tilt imperceptibly. But even a small tilt can have an impact. Easily compensate any deviations with the help of integrated bubble tubes.

Go to top Contact us!