X-ray imaging diagnostic in the high heat flux test facilities

Abstract Ensuring an accurate visualization of incident electron beam in high heat flux test facilities is a key to improve the monitoring of high-heat flux (HHF) tests carried out in view to verify the thermo-mechanical performance of components. Recent progress in X-ray imaging sensors R&D made them well-adapted for such monitoring, in particular in the case of tested components with complex shapes. This paper describes the innovative X-ray imaging diagnostic implemented in both the TSEFEY-M and IDTF facilities (Efremov Institute, Saint-Petersburg, Russia) to improve the accuracy of ITER in-vessel components HHF tests monitoring.