Snake robot developed with RAICo support is ‘a potential game-changer’ for nuclear industry 

A ‘snake’ robot being developed by the University of Nottingham is transforming nuclear decommissioning efforts, thanks to critical support from RAICo.  

Designed by Dr Xin Dong and his team, the robot is a flexible inspection tool capable of navigating confined and hazardous spaces.  

Equipped with cameras, LED lighting, and radiation dosimeters, it collects vital visual and radiometric data from areas inaccessible to humans, paving the way for safer and more efficient nuclear decommissioning operations. 

RAICo’s backing has been crucial to the robot’s development and deployment. At Nuclear Restoration Service’s Dounreay site in Scotland, the robot inspected part of a shielded cell sealed for more than 40 years, gathering essential data that informed hazard mitigation and decommissioning strategies.

The success of this deployment has highlighted the robot’s potential to become a vital tool in nuclear site management. 

The snake robot’s innovative design includes modular segments, inflatable stiffening elements, 3D-printed guide disks, and flexible tubing, allowing it to manoeuvre through tight spaces. Controlled via a sophisticated actuation system, the robot provides high-quality, real-time data while navigating complex environments.  

Originally developed for the aviation industry, its potential for nuclear applications was identified through funding from the RAIN Hub and the Game Changers programme, which facilitated collaboration between key stakeholders including Dounreay, Ice9 Robotics, and FIS360. 

Dr Xin Dong intends to build on their initial success. He said: “Our goal is to help Dounreay fully understand the radiation levels in the cell, enabling them to plan decommissioning effectively. We also hope to assist with cleanup, addressing hazardous materials found in the last deployment.” 

This year the snake robot will receive a major upgrade with the integration of a real-time radiometric sensor, enhancing its ability to map radiation levels with precision. It will re-enter Dounreay’s containment cells to complete radiation mapping and assist with the safe removal of hazardous materials. 

Dr Kirsty Hewitson, Director of RAICo, underlined the broader impact of the technology: “Innovative tools like the snake robot are potential game-changers for the nuclear sector. They help us access critical data from areas previously deemed inaccessible, enabling safer, more cost-effective decommissioning. RAICo is proud to support this project and looks forward to seeing its wider application across the UK’s nuclear estate.” 

RAICo is now exploring deployment opportunities at other sites, including Sellafield. Market research with FIS360 is underway to identify areas where the snake robot can deliver the greatest benefits. 

This collaboration showcases the power of innovation and strategic partnerships in addressing complex nuclear challenges, marking a significant step forward in improving safety and efficiency across the sector. 

RAICo is a partnership between the UK Atomic Energy Authority, the Nuclear Decommissioning Authority, Sellafield and the University of Manchester. It aims to accelerate the deployment of robotics and AI in nuclear decommissioning and fusion engineering.