HP-Ge Detector       Liquid Nitrogen Tank  

HP-Ge Detector with step one Cu shielding

HP-Ge Detector with step two Cu shielding

HP-Ge Detector with Cu shielding and Ring- Detector

HP-Ge Detector with Cu shielding and Ring- Detector with shielding

Ring Detector (Ears with inside two PMTs in each) with connecting cables

Ring Detector Ears with connecting cables

Wall-Detector

Wall-Detector on the top of Ring-Detector

Some steps of Cu-shielding around detectors