Let’s work together
to ensure X-ray
safety and quality.

What we do matters. To patients. To professionals. To us.
It is more than algorithms, technology, and design.
It is about setting the standard for Quality Assurance of X-ray imaging.

RTI is a world-leading manufacturer of Quality Assurance (QA) solutions.

In 1981, we invented the first X-ray QA system for diagnostic radiology. Since then, innovation has been at the heart of our corporate philosophy and we have pioneered many QA procedures. We continue to invest heavily in R&D to push forward the very edge of X-ray QA, across all modalities.

Longer and more active lives, combined with a string of new examination techniques, have made diagnostic radiology the most widely used medical imaging technology. Diagnostic imaging growth can be seen throughout the healthcare sector, including orthopedic and vascular imaging, plus full-body scanning. This will be a continuing trend, thanks to a shift in focus to more advanced healthcare globally.

As X-ray examinations increase, there is a higher risk of patient and staff exposure to levels of X-ray radiation that could result in negative health implications. As a long-standing member of, among others, IEC, AAPM, and MITA, we are proud to participate in work to research, develop and evolve diagnostic radiology standards. A key company-wide goal is also to educate customers and partners, sharing our deep knowledge of X-ray QA best-practice to protect patients and staff in an ever more complex operational environment.

Our QA solutions are used worldwide by hospitals, manufacturers of X-ray equipment, service providers, and government authorities, across all different modalities, including R/F, Dental, CT, Mammography, interventional, and surgery (C-arms).

Today, we are represented globally through offices in Europe, the USA, and Asia, as well as by 100 distributors worldwide.

2021 The RTI Scatter Probe and Ocean Next™ software are released. RTI celebrates 40 years since the establishment of RTI Group and the release of the Digi-X, the first commercially available X-ray Multimeter to measure non-invasive kV.

2019 At the RSNA Annual Meeting, Chicago, held in December, we unveiled a major rebrand with a new logo, website, and solutions.

2019 All Cobias, thus all RTI meters, are now wireless. Cables belong to the past!

2019 As the pioneers in solid-state technology, we launch a new CT Ion Chamber.

2018 RTI Academy is launched, providing online and classroom training to meet the needs of customers and partners.

2017 We open APAC market operations in Singapore. RTI Group APAC.

2015 Ocean Quick Check released; a simpler software application targeting service engineers.

2014 The Black Piranha premium platform for complete QA was introduced.

2011 The Cobia platform was launched to facilitate X-ray Quality Control.

2010 First release of our Ocean software, replacing oRTIgo.

2009 We introduce the world’s first “transparent detector” for AEC measurements; the T-20.

2009 We introduce the rotation symmetrical and angle independent point dose detector CT Dose Profiler that replaces the CT-SD16.

2006 The Red Piranha platform with integrated modules and detectors, supported by the new Windows-based oRTIgo software package.

2005US office is opened in New Jersey. RTI Group Inc.

2005 We introduce the world’s first commercial tool to measure dose profiles with helical scans; the CT-SD16.

2004 Barracuda becomes the first wireless X-ray platform.

2002 The mAs-3 is launched. It is the first non-invasive mAs probe to measure low currents during Fluoro.

2002 The last PMX-III was delivered. Almost 20 years later, many still come in for re-calibrations.

2001 The Barracuda platform is launched. It is the first X-ray multimeter to measure kVp, dose, dose rate, time, dose/pulse, pulse rate, mA, mAs, TF, and HVL in one exposure; on all modalities. The first systems were shipped to AGFA Healthcare Corporation, Greenville, SC, USA.

1996 RFM, the first electronic focal spot measuring device, was launched.

1994 The Solidose 300 digital dosemeter was introduced.

1994 The first light probe that connects directly to an X-ray Multimeter.

1993 Visi-X, the first film-less radiation/light field analyzer was launched. The product is still very popular in the market.

1993 MAS-2 unveiled. It is the first non-invasive mAs probe for X-ray QA.

1992 Solidose 100/200 introduced, the first dosimeter to use both solid-state and ion chambers.

1991 Our pioneering QA software oRTIgo was unveiled. oRTIgo was the first QA software to automatically collect data, perform analysis, and create a report.

1991 PMX-III was introduced, the first X-ray multimeter to use a solid-state detector for dose measurements. PMX-III guarantees accuracy from a single sample/exposure QA measurement.

1989 The PMX-II was introduced, the first all-in-one meter to measure both Rad and Mammo.

1988 We exhibited at RSNA in Chicago for the first time. We continue to exhibit at this annual event.

1985 Mini-X launched, the first self-contained kVp/time meter.

1982 We signed our first distributor agreements to export the Digi-X.

1981 RTI was founded and the Digi-X launched. Digi-X was the first commercially available X-ray Multimeter to measure non-invasive kV. RTI Group AB.

1979 Our founders – Ulf Toll and Lars Herrnsdorf – developed the first non-invasive kVp meter in the world.

Ulf Toll
Ulf Toll
Lars Herrnsdorf
Lars Herrnsdorf

Selected partners

PTB is Germany's National Metrology Institute and handles scientific and technical service tasks. With metrology as the PTB's core competence, the organization's goal is to measure with the highest accuracy and reliability. PTB represents progress and reliability in metrology for the benefit of society, trade and industry, and science.
The ANSI National Accreditation Board (ANAB) is the largest multi-disciplinary accreditation body in North America. ANAB accredits the full spectrum of conformity assessment bodies, including calibration, testing, and inspection.
The International Electrotechnical Commission (IEC) is the world’s leading organization that prepares and publishes International Standards for all electrical, electronic, and related technologies.
AAPM is a scientific and professional organization, composed of more than 8000 scientists, whose primary goal is the identification and implementation of improvements in patient safety for the medical use of radiation in imaging and radiation therapy.