Figure 4
The measured 241Am spectra of all nine pixels of the large array 3 (500 µm) at low-rate conditions (ICR = 500 cps). The energy resolution (FWHM) at 59.5 keV of the best pixel (pixel 8) and the sum of all the spectra are 2% (1.2 keV) and 2.5% (1.5 keV), respectively. |