Radiation Shielding By Dr. Ronald Turner

Aug 11, 2009 · • Approved limits based on understanding of the relative risks ... shielding is to reduce exposure so that the cumulative total is below permissible limits, ideally ... (metals, for example), before shielding becomes effective in reducing them, as may be seen in Figure 2, adapted from Wilson . et al (1997).

  Metal, Limits, Permissible, Permissible limits