Abstract
The radioactive nuclides produced in rock surrounding a high energy accelerator installation may migrate from the accelerator environs if subjected to the hydraulic gradients of ground water. Under such conditions it might be possible for neighbouring ground water systems to become contaminated by long-lived radionuclides. This study concerns itself with the influence of chemical sorption in rock surfaces and its influence in minimizing leach rates. A specific study of the migration of 7Be, an important radionuclide produced in accelerator shields, through ground predominantly composed of chalk is reported. Sorption is shown to play a dominant role in minimizing leach rates.
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