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Home   /   E&T program   /   Continuous Professional Development   /   Sodium technology and sodium loop operation practical instruction

Sodium technology and sodium loop operation practical instruction

Operation and maintenance


Risk management

Sodium risks

Nuclear reactor


New formation !

In summary

The main objective of this training is to acquire knowledge allowing the various actors to operate  facility, devices or loops containing sodium

Who should take this course ?

Any engineer who is lead to work on the operation of sodium loops or installations.

Learning outcomes

• Announce sodium characteristics
• Define the precautions to be taken when working with sodium as well as the collective and individual means of prevention
• Describe and use specific sodium instrumentation
• Know the step of a sodium purification campaign
• Describe the particularities of sodium loop components and list the main commissioning and operating phases of a sodium loop
• Identify the main operating incidents, their consequences and the associated detection and protection systems
• Use sodium loop intervention procedures
• state the controlling variables of the reactor
• list the safety principles and their application to the reactor
• list the steps of normal operation
• analyze the transients: start-up, ramp-up, control, shutdown

The expertise of teachers.
Practical work: endoscopy, NaK sampling,
tools cleaning.
Visit: Presentation of sodium waste and NaK
treatment process.

• Sodium physical and chemical properties; sodium hazards
• Sodium facilities: functional analysis approach; design rules for main loop and utilities
• Sodium facilities operation: start-up procedure, transients, shut-down
• Sodium Instrumentation: measuring sensors & calibration
• Sodium facilities: technology
• Rules and guidelines for sodium facilities interventions
• In sodium corrosion and corrosion products transfer
• Sodium pollution sources and potential consequences
• Sodium quality control including purification
• Heat transfer correlations and thermal-hydraulics modelling
• Phenix & Superphenix reactors operation feedback
• Sodium cleaning
• Practical exercises on: start-up operations, filling operations, facilities operations, facilities interventions, sodium fire
• Visits of sodium cleaning facilities, sodium test loops and Phénix reactor when the facilities are available
• Operation and safety of SFR, safety during mal-function and accidents
• Basic knowledge on neutron physics and reactivity feedback
• Basic knowledge on thermal-hydraulics
• Normal operation, operation constraints, thermal-mechanics, control, reactor's protection (thermal-hydraulics transients)
• Decay heat removal systems
• Sodium-Water Reaction issues – Detection and protection systems
• In service inspection
• Reactor's start-up transients, power increase
• Normal transients
• Operation during mal-function
• Operation during accidents

No prerequisites required.

Teaching method and tools

On-site visit


  • La formation inclut des travaux pratiques mettant en œuvre des sources de rayonnements ionisants et/ou des visites d'installations en zone réglementée ; se conformer aux recommandations mentionnées dans les conditions de vente.


Program manager :

+33 4 42 25 72 34

training sessions

No training session is scheduled for the moment, if this training interests you, please contact us.

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