ZHANG Li WANG Jicheng ZHAO Jinhua YANG Yongfeng ZHENG Jiwen QIN Zhi ZHANG Chun GUO Tianrui HU Qingyuan. A coincidence-anticoincidence system for detecting γ rays from weak activity neutron-rich nuclei[J]. Nuclear techniques, 2002, (3): 173-178.
ZHANG Li WANG Jicheng ZHAO Jinhua YANG Yongfeng ZHENG Jiwen QIN Zhi ZHANG Chun GUO Tianrui HU Qingyuan. A coincidence-anticoincidence system for detecting γ rays from weak activity neutron-rich nuclei[J]. Nuclear techniques, 2002, (3): 173-178.DOI:
ray signals detected by a HPGe detector were coincided with β-ray signals detected by a 4πΔ E β detector
and anticoincided with 511keV γ-ray from positron annihilation detected by a large BGO detector. This special coincident-anticoincident system was proved to be very successful in suppressing interfering γ- and β- rays emitted from β-deficient siotpes
and has played an important role in the obervation of the new neutron-rich nuclide 209 Hg.