Irradiation Growth

for Fuel Engineers and Technical Managers – Expert level | taught by A.N.T. International

Course description


Irradiation growth is a change in the dimensions of a zirconium alloy reactor component even though the applied stress is nominally zero. Understanding of the detailed mechanism is still evolving; however, a clear correlation of growth to microstructure evolution exists, and many empirical observations have revealed key mechanistic aspects. 

Irradiation growth is involved in:
  • Fuel rod length changes
  • Bow of a component such as a BWR channel or PWR control rod assembly

This course addresses all data deemed relevant to understanding irradiation growth, broad review and new aspects of growth mechanisms, and a summary of practical effects of growth on component performance.

This course involves watching webinars. The course material including the online content can be accessed at times convenient. The PowerPoint-presentations are available for download on almost all lectures. You will find them just before the lecture starts.

If you need a printed certificate, please don’t hesitate to contact us and we will send it to you via regular mail. You may reach us at

Please note that these PowerPoint-presentations are the actual file from the seminar that has been recorded. Therefore, there may occur spelling errors and/or less perfect pictures or slides. As the presentations are the expert’s own material we have not edited them before making these lectures available online. If you have any questions regarding this course, please contact support at


The Authors and Lecturers of the report/webinars are World Class Experts in their fields and are as follows:

Dr. Ron AdamsonDr.Malcolm Griffiths

Course duration

The below listed time for the lectures is the actual running time. More time may be needed to digest the information provided in this course and you may have to watch some lectures more than once.

  • Total time: About 10 hours of materials, estimated time to finish, up to 1 week (full time studies) 
  • Webinars: 3 h

Course parts

  • Introduction to Irradiation growth
  • Irradiation growth data
  • Mechanisms and modelling
  • Engineering applications


The information presented in this course has been compiled and analysed by Advanced Nuclear Technology International Europe AB (ANT International®) and its subcontractors. ANT International has exercised due diligence in this work, but does not warrant the accuracy or completeness of the information. ANT International does not assume any responsibility for any consequences as a result of the use of the information for any party, except a warranty for reasonable technical skill, which is limited to the amount paid for this course.

A.N.T. International
A.N.T. International

ANT International Academy supportteam can be reached at