Figure 12
On-axis transmission efficiency and energy error of a heterogeneous type II spectrometer constructed from Si and Ag. This spectrometer can provide good measurements of energy between 4 and 60 keV. Curves show predicted energy errors observed by the second (filled squares), third (open squares), fourth (filled diamonds), fifth (open diamonds), sixth (filled circles), seventh (open circles) and eighth (crosses) detector in the stack. These correspond to the signal observed through 25 µm Si, 225 µm Si, 425 µm Si, 625 µm Si, 625 µm Si and 30 µm Ag, 825 µm Si and 80 µm Ag, and 1025 µm Si and 160 µm Ag. |