Figure 4
Measured energy spectra of uncollimated (a) 109Cd and (b) 241Am sources of pixel 9 of the array 3 (pixel pitch of 500 µm) at low rate conditions (<600 counts s−1). At room temperature, we measured, for the same pixel and by using the same bias voltage, energy resolution (FWHM) values of 6% (1.3 keV) and 2.5% (1.5 keV) at 22.1 keV and 59.5 keV, respectively. |