RTsafe and Blue Physics announce collaboration to enhance real-time radiation dose measurements

18July 2023

ATHENS, Greece, July 18, 2023

RTsafe, ( a global leader in radiation therapy quality assurance (QA) solutions, and Blue Physics, a cutting-edge provider of real-time dose measurement technologies, are delighted to announce their collaboration that seeks to transform radiation therapy treatment monitoring. The partnership will see RTsafe’s flagship machine quality assurance product, the Prime phantom, incorporating a new dosimetry insert featuring state-of-the-art plastic scintillator sensors developed by Blue Physics. This collaboration aims to provide real-time and accurate dose measurements, contributing to enhanced patient safety and treatment effectiveness in radiation therapy.

RTsafe’s Prime is a precision, patient-like QA phantom designed for End-to-End evaluation of advanced radiotherapy applications, focusing on stereotactic radiosurgery (SRS). It utilizes advanced 3D printing technology to create an anatomically accurate replica of a patient’s head that provides realistic bone and soft tissue contrast in both MR and CT imaging. Prime accommodates any kind of point, 2D or 3D dosimeters according to the end user’s needs. By integrating Blue Physics’s groundbreaking dosimetry insert into Prime, radiation oncologists will have access to instant and precise dose measurements throughout the treatment process in an authentic clinical environment.

Blue Physics has developed cutting-edge technology that incorporates multiple plastic scintillator detectors, renowned for their exceptional accuracy and reliability. These water equivalent detectors have an active volume of only 0.78 mm3, making them perfectly suited for small field dosimetry without the need for correction factors. This capability has been validated by experts from IAEA AAPM TRS-483. In collaboration with Mercurius Health, Blue Physics has leveraged this technology to develop a custom 7-detector insert designed for use with the RT-Safe Prime phantom. This insert is fully compatible with Zap-X and other SRS treatment machines, representing a significant advancement. With its unique arrangement of Blue Physics detectors, this innovative insert enables swift patient quality assurance for radiosurgery treatments.

Evangelos Pappas, Founder and Chief Scientific Officer of RTsafe, expressed his enthusiasm about the collaboration, saying:

“At RTsafe, we are committed to continually advancing radiation therapy QA. By joining forces with Blue Physics, we are taking a significant leap forward in real-time dose monitoring. The seamless integration of their cutting-edge dosimetry insert into our Prime phantom will equip clinicians with invaluable insights, enabling them to optimize treatment plans and maximise safety for patients.”

Marcos Feijoo, CEO of Blue Physics, shared his excitement for the collaboration, stating:

“We are thrilled to partner with RTsafe, an industry leader renowned for its commitment to patient safety. Our plastic scintillator sensors, coupled with RTsafe’s Prime phantom, will enable real-time monitoring of radiation dose delivery, revolutionizing the way radiation therapy is performed. This collaboration reflects our joint dedication to providing innovative solutions that improve patient outcomes in oncology.”

The collaboration between RTsafe and Blue Physics marks a significant milestone in the field of radiation therapy QA. The integration of Blue Physics’ advanced dosimetry insert into RTsafe’s Prime phantom will enhance patient safety, optimize treatment plans, and contribute to the advancement of precision radiation therapy.

You can stop by booth #515 in AAPM’s Annual Meeting & Exhibition (Huston, TX) on July 23-27 to learn
more about the two technologies.


 Press to download the Press Release


About RTsafe

RTsafe is a medical technology company that has developed a unique approach to quality assurance that is making a contribution to the safety and accuracy of radiotherapy for cancer and other medical conditions. It combines proven expertise in medical physics with highly accurate 3D printing technology to create pseudo-in-vivo dosimetry phantoms for use in end-to-end commissioning, benchmarking, and patient-specific quality assurance in stereotactic radiotherapy. The anatomically accurate effigies enable medical professionals to simulate therapeutic interventions for each patient head of actual treatment and help radiotherapy technology innovators to verify the performance of their products. See


About Blue Physics

Blue Physics is an innovative start-up dedicated to revolutionizing radiation measurement through the use of plastic scintillator detectors. Our groundbreaking solution overcomes the major limitations faced by traditional detectors in the rapidly evolving field of radiation treatment including SRS, Brachytherapy, MR-LINACs, Proton therapy, and Flash therapy, among others. This revolutionary technology provides not only a solution for small field dosimetry but also an unprecedented time resolution. It has the remarkable capability to measure the dose delivered by each individual pulse from the LINAC, facilitating highly accurate and ultra-fast commissioning and quality assurance of linear accelerators and patient treatements. At Blue Physics, we firmly believe that there is a better approach to measuring radiation for enhanced machine and patient quality assurance, ultimately leading to improved treatment outcomes for cancer patients. See



For further information please contact:

Gareth Zundel – Marketing Director, RTsafe | [email protected] |+44 7967 678309

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