Construction work with a bulldozer to gain more information on the shielding properties

Many people were surprised last September when it appeared that preparations were being made for yet another new building, this time on top of the proton synchrotron ring! However, the bulldozer was only 'on loan', to remove a layer of earth temporarily in an experiment designed to gain more exact information on the shielding properties of this useful material. The experiment formed part of a study made jointly by AR Division, MPS Division and the Health Physics Group, to enable estimates to be made both of the extra thickness required if the PS intensity is further increased and of the needs of possible future machines such as the intersecting storage rings or the 300-GeV accelerator