Your Partner for innovative & Carbon-free energy solutions

Photonis, part of Exosens is a market leader in Nuclear Instrumentation for more than 50 years. Photonis brand designs and manufactures Neutron and Gamma Detectors for the nuclear industry, including applications in nuclear power plants, fuel reprocessing facilities, waste storage monitoring, and nuclear research instrumentation.

Read more

Need some answers? Ask our experts!

Contact us
Photonis France Nuclear

Nuclear Instrumentation

Nuclear Instrumentation involves the design, development, and use of specialized instruments to detect, measure, and analyze radiation in nuclear and radiation-related applications. These instruments play a critical role in areas such as nuclear power plants, radiation therapy, nuclear research, and environmental monitoring. Nuclear Instrumentation is essential to ensure safety, accuracy, and compliance in various nuclear-related activities.

In France, we partner with Électricité de France (EDF), Framatome, the French Alternative Energies and Atomic Energy Commission (CEA), TechnicAtome and ORANO (fuel reprocessing plants and waste storage). Abroad, we have also gained experience in pressurized water (PWR), boiling water (BWR), heavy water (HWR) reactors and other reactor designs.

Photonis Nuclear Instrumentation caters to more than 30 countries in the world: Argentina, Australia, Canada, China, South Korea, United Kingdom, United States of America, Western Europe, etc.

Photonis has worked on innovative technologies, including fast reactors such as Phenix, Superphenix, the Astrid project. Photonis continues to work not only on the Jules Horowitz Reactor (JHR) – a Materials Testing Reactor – and many other research reactors, but also on Fusion market with ITER and IFMIF-DONES. Photonis is also supporting the specific needs of Small Modular Reactors (SMR) and Advanced Reactors to ensure their success for a sustainable energy future.

Safety is our overriding priority

We contribute to the safety system in Instrumentation and Control system (I&C) with detectors for reactor instrumentation (ex-core, in-core) based on fission chambers, boron lined proportional counters and gamma ionization chambers technologies, and transmission lines in extreme environments. We offer unique detector technologies compatible with different reactor types and environments, such as high level of radiation, high temperature, high external pressure and LOCA (Loss of Coolant Accident) and post LOCA protection.

As part of its Quality Assurance Program and customer satisfaction drive, Photonis Nuclear Instrumentation is committed to maintaining certifications as per the following standards:

  • ISO 9001: 2015 
  • ISO 14001: 2015
  • ISO 45001: 2018
Photonis France Nuclear

Applications in Nuclear