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nuclear fission.

radiation-protection for nuclear-fission
engineering to the limits of physics

nuclear fission.

Nuclear fission is a safe and low-emission energy production method, that generates heat by splitting heavy atomic nuclei such as uranium or thorium. Today’s fission systems provide reliable baseload electricity and are evolving through advanced reactor concepts that improve safety, efficiency, and sustainability. With global interest increasing in next‑generation designs, including SMRs, high‑temperature reactors, and molten‑salt systems, the field presents significant engineering challenges and opportunities in materials, thermal systems, and modular construction.

Demcon supports this acceleration through the development of proof-of-concepts, highly advanced modules, automation systems and research equipment.

applications

GEN-IV-reactors

Advanced reactors (GenIV)

Global interest in advanced reactor designs, known as Generation IV systems, is surging.

Across Europe, promising Small Modular Reactor (MSR) concepts are emerging for powering ships, remote sites, energy‑intensive industries, and district heating.

Designs include light water reactors, high‑temperature gas‑cooled reactors, liquid‑metal‑cooled reactors and molten salt reactors. While offering gains in safety, efficiency and sustainability, they still face challenges in cost and scalability.

Molten Salt Reactor

Molten Salt Reactors

MSRs use molten salt as coolant and/or fuel, enabling operation at high temperatures and near‑atmospheric pressure. These designs can offer efficiency gains, improved safety, and potential for thorium‑based fuel cycles.

Major challenges include corrosion control, salt purification, qualification of structural materials, and developing reliable online fuel‑handling and reprocessing technologies for commercial deployment. Demcon can support by developing test set-ups to validate designs or modules.

Smart-project---Source-of-medical-radioisotopes

Medical isotope production

Medical isotope production systems require exceptional precision, reliability, and radiological safety.

contributes through high‑accuracy mechanical assemblies, automated handling systems, radiation‑tolerant instrumentation, and optimized thermal‑fluid designs.

Our engineering capabilities help ensure stable, high‑yield isotope generation that supports diagnostic imaging, cancer treatment, and growing global healthcare demands.

Research equipment

Research equipment

Validating concepts and testing new designs requires research equipment where nuclear radiation is a critical factor in design, integration, maintenance, and operation.

Examples include particle accelerators, systems for transforming nuclear waste into new fuel streams, irradiation test facilities, hot cells, and high‑flux experimental setups.

Demcon specializes in developing and realizing these one‑of‑a‑kind or first-of-a-kind systems.

Big science banner

nuclear development & research.

The industry is working on a new generation of reactor technologies:

  • Metal-cooled Fast Reactor
  • Molten Salt Reactor
  • High-Temperature Gas Reactor
  • Supercritical Water Reactor

disciplines

Liquid Metals_demcon fusion_icons

Thermal management incl. liquid metal

Demcon develops end‑to‑end thermal management solutions with extreme heat fluxes. We engineer liquid‑metal cooling (e.g., sodium or lead) and conventional media systems, covering heat‑exchanger design, pump and flow‑control selection, transient analysis, and materials compatibility. By combining simulation‑driven design, system engineering and internally developed verification rigs, we deliver stable, efficient heat removal for nuclear applications.

Process control_demcon

Process development and verification

Demcon develops advanced process‑control equipment and specialized test set‑ups for nuclear‑related applications. This includes molten‑salt installations for next‑generation fission concepts, including selection of pumps, valves, heaters, and purification systems. We do design, integration, verification and supply‑chain development, drawing on expertise in corrosion behaviour, thermal management, and process control. This allows us to create robust, customized solutions tailored to demanding research and industrial environments.

Radiation expertise_demcon

Radiation expertise

We design equipment and processes to operate reliably under radiation, from material selection and shielding to lifetime modelling, sensor hardening, and maintenance strategies. DEMCON’s approach combines dose budgeting, ALARA‑driven layout, and test protocols for electronics and optics. The result: diagnostic systems, manipulators, and auxiliary hardware that maintain performance, safety, and serviceability across reactor islands, hot cells, and waste‑handling environments.

Simulation  Modeling_demcon fusion_icons

Simulations

Demcon applies multi‑physics simulation—structures, thermal‑fluids, electromagnetics, motion, and controls—to de‑risk designs before hardware exists. We model thermal‑hydraulic transients, vibration and fatigue in rotating equipment, salt or coolant flow, and radiation‑driven degradation effects. Coupling FEA/CFD with system‑level models and hardware‑in‑the‑loop control lets us optimize performance, validate margins, and shorten iteration cycles for reactor subsystems and balance‑of‑plant components.

prototyping

Fast prototyping & test set-ups

We compress development timelines by building fit‑for‑purpose prototypes and instrumented test rigs that replicate key operating conditions—high temperature, vacuum/inert gas, flow, and vibration. DEMCON delivers turnkey benches with data acquisition, safety logic, and automated procedures to qualify components and subsystems. This accelerates technology maturation for cooling loops, valves and drives, sensors, and optical/mechatronic assemblies critical to fission programs.

Mechatronics remote handling_demcon fusion_icons

Remote handling & mechatronics

Demcon develops remote handling systems: manipulators, end‑effectors, motion stages, and tele‑operation controls. These can be applied to hot cells, fuel‑cycle facilities, and reactor maintenance, sometimes under harsh conditions, such as vacuum, high temperatures, or radiation.

We design for safety, maintainability and accuracy, enabling safe inspection, replacement, and processing of critical components.

showcases

Discover the challenges we work on within the Demcon group.

producing medical radio-isotopes with minimal nuclear waste

Radio-isotopes are widely used for medical diagnostics.

Read more

Innovative collaboration for future-proof energy: molten salt reactor development

Read more

nuclear physics

We use our extensive experience in nuclear engineering, radiation and shielding to support customers in the development of nuclear systems.

Read more

nuclear medicine

Nuclear medicine plays a vital role in modern healthcare by enabling precise diagnosis and targeted treatment through radioactive isotopes.

Read more
Demcon high-tech systems

your engineering partner.

With our in‑depth knowledge of thermal management, liquid metals, molten salt, radiation, system engineering, fast prototyping and remote handling, we have the right skill set to develop solutions that address the challenges in new nuclear technologies.

Portrait photo Martijn Krijnen

Martijn Krijnen

Business developer+31 (0)88 115 20 00
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