Elevating Reactor Monitoring: Fission Chambers for Ex-Core Use
Discover Photonis fission chambers for ex-core use, specially crafted for applications in the most challenging environmental conditions outside the reactor vessel of nuclear power plants.
These fission chambers stand resilient in severe conditions, operating with precision in environments where others falter. Designed for thermal neutron detection, these detectors provide invaluable indications across a remarkable 11 decades of neutron flux in gamma fields of 104 Gy/h and temperatures as high as 600°C.
Why choose Photonis fission chambers?
- Unmatched Precision: Accurate detection across a wide range for comprehensive reactor monitoring.
- Resilient Performance: Operates seamlessly at temperatures up to 600°C, ensuring reliability even in advanced reactors.
- Nuclear Quality: These detectors are built to perform safety-related functions in the operating nuclear fleet. Photonis manufactures to stringent quality standards, operating according to ISO9001, ISO19443, RCCE, NQA-1, and HAF604.
Essential to reactor neutron flux monitoring, Photonis fission chambers play a pivotal role in detecting thermal neutrons, monitoring fuel burn-up, and controlling power across source, intermediate, and power ranges.
To request more information or a quotation for Photonis products, contact IL Photonics.

