Figure 3
Layout of a single drift cell of the 3D drift strip CZT detectors. Each drift cell (1.6 mm × 6 mm × 20 mm) contains a collecting anode strip and four drift strips, two RDs and two LDs of the collecting strip. The bias voltage values are optimized to collect electron charges on the collecting anode. The PTF and PPF irradiation geometries are also shown. |