Scope of the Project

This project involved the initial strip-out of the existing Linac machine.  The existing radiation protection in the bunker was not suitable for the new, updated equipment, therefore significant structural works were required to provide the additional shielding required.  
 

Challenges

The existing Linac bunker did not provide enough space to create the new radiation protection required, negating the possibility of installing a concrete bunker.  The installation of a lead bunker did not fall within the NHS Trust's budget for the project.  Additionally, the increased radiation protection would add significant weight to the infrastructure for both the walls and the ceiling.
 

Our Approach

By way of compromise, Apollo proposed a solution of steel and concrete shielding which would provide the necessary radiation protection whilst reducing the space required from 1m to 200mm.  The existing structure was reinforced, with detailed designs for fixings, to ensure it was capable of supporting the weight of the new shielding. 
 

Innovation

The extensive structural alterations required significant cutting of steel on site.  The site was an enclosed bunker, with no natural ventilation.  Apollo installed a temporary extract and filtration system to provide fresh air to site, and remove any airborne debris from cutting.