TOMIS - in situ low-dose multi-energy tomograph - is a collaborative project between the CEA and THALES within the scope of the future investments programme (PIA) managed by ANDRA. As part of this project, the teams at the CEA Nuclear Technology Department (DTN) are developing a powerful tool to physically characterise legacy waste, dismantling waste and possibly structural components and equipment. The goal is to have an operational tomograph at the end of 2023.
TOMIS must be mobile and adaptable while meeting acceptability and high-performance measurement criteria.
A one-of-the-kind tool, TOMIS is specific by its mobility and adaptability designed to allow its use in different environments. To do this, there must be a significant reduction in the system’s dose impact, which is done by using a high-energy linear electron accelerator. This requires adapting a specific linear accelerator and developing a special shielded system to be installed as close as possible to the accelerator (self-shielding) and the measuring area.
It will be an additional tool to radiological characterisation by coupling it with non-destructive measurement techniques like gamma spectrometry or neutronic measurement performed in our nuclear measurements laboratory (LMN).