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利用在束实验产生具有β+/EC衰变性质核素176,178Ir,分析了在束实验条件下获得的γ-γ符合数据,识别出了176Os的4条新能级和13条新γ跃迁、178Os的5条新能级和14条新γ跃迁。籍助氦喷嘴快速带传输系统,进一步对176Ir的β+/EC衰变进行了测量,在确认在束测量新γ射线的同时建议了176Ir的一个低自旋同核异能态。通过两准粒子耦合的半经验计算,建议了176,178Ir基态及同核异能态的组态。
By using beam experiments, the radionuclides 176, 178Ir with β + / EC decay properties were analyzed. The γ-γ coincidence data obtained under the beam experiment conditions were analyzed. Four new energy levels and 13 new γ-transitions were identified for 176Os and 178Os Five new levels and 14 new gamma transitions. Using a helium nozzle rapid band transfer system, the βI / EC decay of 176Ir was further measured and a low spin isokinetic isomer of 176Ir was suggested at the same time as the new γ-ray was measured in the beam. Based on the semi-empirical calculation of two quasi-particle couplings, the configurations of the 176,178Ir ground state and the isochronous state are proposed.