Figure 3
Usually a sample is chosen to fulfil the traditional Nordfors criterion; however, the extended range criterion plotted provides a very similar statistical information content (Chantle, Tran, Barnea et al., 2001). If the experiment crosses the edge, the traditional definition is often unrealistic for real samples; and if experiments use more than a single sample thickness or concentration, as is argued herein, then the extended range is critical as it permits investigation of key systematics. |