A 75 cm by 100 cm, colour illustration of the 120 kV accelerator used for the study of materials surfaces and the channeling of ions in crystals. This comparatively low-energy accelerator was used by an experimental, materials-study group at Chalk River under the leadership of John Davies. Experiments included the study of gases absorbed on catalyst surfaces and the discovery that heavy ions injected into crystals at certain specific angles can be “channeled” along certain axes in the crystal for much longer distances than normally predicted. The Chalk River group relocated to the campus of Western University in London, ON, during the 1980s to form a new material-studies group there.
