“…6. A is the magnification; T is the shaping time; the shaping filter is an active filter with 1 ms shaping time and is included in the signal processing circuit which is described in our previous publication [Zhubin et al, 2008]. The FWHM energy resolution of approximately 4.58% at 662 keV was obtained for a device with dimensions of 5 Â 5 Â 10 mm 3 .…”