FOR THE SEGMENTS:. Measurement of the FWHM at 1.33MeV (60Co): Guaranteed value: ≤ 2.30keV Measurement of the FWHM at 60keV(241Am): Guaranteed value: ≤ 1.30keV Mean value: ≤ 1.20keV All segments will be measured at 60keV and at 1.33MeV Measurement conditions: The source is in front of each segment. Count rate ≤ 1000 counts per second. Gaussian shaping time: 6µs.