Figure 3
Overview of the measured uncollimated (a) 241Am and (b) 57Co energy spectra of all nine pixels of large array 3 (500 µm) under low-rate conditions (ICR < 600 counts s−1). The energy resolution (FWHM) of the best pixel (pixel 3) is 2.8% (1.7 keV) and 1.6% (2 keV) at 59.5 keV and 122.1 keV, respectively. |