Nuclear Instrumentation

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Nuclear Instrumentation Solutions

Our Nuclear Instrumentation team designs and manufactures Neutron and Gamma Detectors for extreme environments.

Photonis is a leader in the design and manufacturing of reliable detectors dedicated to the Safety of the Nuclear Core.

Photonis detectors are present on all the French Nuclear Power Plants as well as customized Research Reactors. We have 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.

Assure your safety
As a 1E, Safety critical, component supplier, Photonis defines your safety as its overriding priority.

The Nuclear Instrumentation staff answers to a Quality Management program that uses both training and independent inspections. 

This QM program guarantees that you always get safety class components for your systems. 

The Nuclear Instrumentation team is organized according to ISO9001. 

Product and supporting documentation are delivered according to your nuclear manufacturing standards such as IAEA50-C-G / KTA1401, RCCE (EDF rules), ASME, HAF604.

Solutions
Reactor Building Instrumentation
Research Reactors Instrumentation
Fuel Reprocessing Monitoring and Waste Management

Photonis and future Generations
Photonis detector solutions are also present in safety-critical systems on many research reactors in France and Worldwide. Thanks to this strong link with research (CEA) and extensive operational experience on Generation II reactors, Photonis has developed instrumentation that fits for the challenges of Generation III (EPR) and IV (Astrid, HTR) reactors.

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Start-up range, gen. II and III PWR instrumentation

Start-up range, gen. II and III PWR instrumentation

Boron-lined proportional counters are delivered with adapted neutron sensitivities from 5 c.s-1/n.cm-2.s-1 up to 42 c.s-1/n.cm-2.s-1 for the new CPNB84 type.

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In-core monitoring, gen. II PWR instrumentation

In-core monitoring, gen. II PWR instrumentation

Fission chambers for in-core monitoring of reactor fuel burn-up are moved inside monitoring channel by a specific propulsion cable.

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Nuclear Instrumentation Solutions

Fuel loading, gen. II and III PWR

High sensitive boron lined proportional counters, CPNB64 type, are placed at proximity of the core during fuel loading for detection of possible mistake during operation.

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Boron concentration measurement, gen. II and III PWR

Boron concentration measurement, gen. II and III PWR

Measuring system consisting of instruments and other components intended for boron ...

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Wide-range BWR instrumentation

Wide-range, BWR instrumentation

Special wide-range version of the CFUE32 fission chamber operates in pulse mode during start-up and in fluctuation mode in intermediate range up to full power.

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Wide-range PWR instrumentation

Wide-range, PWR instrumentation

LOCA and post LOCA high sensitive and wide-range fission chambers are installed in PWR blocs covering 11 decades from the cold reactor start-up to the full power range.

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Upgrading VVER

Upgrading – VVER

Adapted fission chambers and boron-lined proportional counters are selected for the upgraded safety instrumentation of the VVER

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Gen-IV-instrumentation

Gen. IV instrumentation

A range of high temperature (600 °C) and extreme environment fission chamber are developed for Gen. IV instrumentation.

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In-core monitoring, gen. II PWR instrumentation

Reactor building signal transmission

In severe operating conditions, coaxial and triaxial mineral insulated cable extensions are designed for pulse and/or current signal transmissions.

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Research-reactor-protection-and-neutronic-experimental-measurements

Research reactor protection and neutronic experimental measurements

Most research reactors in France rely on Photonis fission chambers and boron-lined proportional counters.

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Nuclear Instrumentation Solutions

Research experiments

Photonis has developed subminiatures fission chambers for measurements close to the neutron source.

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Fuel Reprocessing Monitoring and Waste Management

Fuel Reprocessing Monitoring and Waste Management

Nuclear fuel reprocessing and waste management involve the detection, the storage, the recovery of fissile material (plutonium and enriched uranium) and the separation of waste products.

Resource center

Are you looking for a specification sheet or paper? Documents like these and more are available in the Photonis Resource Center. 

Visit the Resource Center