High stability detectors assembled with high optical and mechanical quality
- NaI(Tl) scintillation crystal with special assembling case
- Diameter: 413 mm
- Thickness: 9.5 mm
- Photomultipliers:
- 37 pcs of high quantum efficiency PMTs/detector characterized by improved energy resolution, magnetic shielding and long-term stability
- Lead shielding thickness: 16 mm - 32 mm