Continuing the Tradition of Excellence in X-Ray Dosimetry

RTI Mako Receives PTB Approval and Continues Its Success Story in X-ray Dosimetry In July 2026, RTI Mako achieved PTB approval, one of the highest certification levels for an X-ray dosimeter. This represents a significant milestone in the ongoing development of the Mako platform. The PTB (Physikalisch-Technische Bundesanstalt) in Germany is one of the world’s leading reference laboratories for X-ray dosimetry. As part of the approval process, the PTB evaluates the performance of a measuring device against the requirements of the German Measurement and Calibration Ordinance (MessEV), the Measurement and Calibration Act (MessEG), and relevant IEC standards, including IEC 61674 for dosimeters for diagnostic X-rays. Mako underwent comprehensive testing that included measurement accuracy, energy dependence, dose rate dependence, temperature and humidity effects, long-term stability, repeatability, and electromagnetic compatibility (EMC). The entire firmware and software chain was also evaluated as part of the certification process. Mako received certification for all three application areas: R/F (radiography/fluoroscopy), mammography, and CT. Certification across this broad spectrum of applications represents a strong, independent endorsement of Mako’s performance and versatility as a comprehensive solution for quality assurance in X-ray diagnostics. The approval enables the sale of certified Mako configurations in Germany as well as in other markets where PTB approval is recognized or required. Globally, it also provides customers with an important independent reference for Mako’s measurement quality and performance. Confidence for Customers WorldwideMako represents the latest generation of X-ray QA technology from RTI. The PTB approval provides customers and distribution partners with further independent confirmation of its performance. For customers in regulated markets, the approval is an important prerequisite. For customers in other parts of the world, it provides additional assurance that Mako has been independently tested by one of the most respected metrological institutions in this field. A Tradition of Innovation in X-ray Dosimetry: RTI’s experience with PTB type approval dates back to around 1990, when the PMX-III became the first solid-state dosimeter to successfully pass PTB type approval.Since then, RTI has continuously developed new generations of X-ray measurement technology. Barracuda, Piranha, and Cobia also successfully underwent PTB approval as technology and regulatory requirements evolved. With the PTB approval now granted for Mako, the latest generation of RTI measurement technology continues this tradition. “PTB approval has been an important benchmark for RTI’s measurement technology for more than 35 years. The fact that Mako has successfully completed this demanding process is a strong endorsement of the development work that went into the product, as well as its metrological performance. It gives our customers additional assurance that Mako meets the high standards they expect from RTI.” Sören Sturesson, Product Management & Technical Manager for Calibrations, RTI Group Learn more about RTI’s certifications and approvals, as well as our commitment to the highest measurement quality. View all RTI certifications: https://rtigroup.com/rti-about-us/rti-certifications-approvals/