Decontamination of Phebus Experimental Target Chamber Using Sprayed Foam

Phebus facility was designed in the eighties to lead inertial confinement fusion experiments on deuterium/ tritium targets. It has been decommissioned in 1999. Phebus chamber is an aluminum alloy (5086) sphere of 2,3 m diameter with an inner volume of about 8 m³. The thickness of the chamber is about 12 cm. A large number of openings (around 230) were designed on its surface, for diagnostics implementation during experiments (figure 1).