【摘 要】
：
在210MeV的束流能量下,利用重离子熔合蒸发反应146Nd(35Cl,5nγ)176Ir产生具有β+／EC衰变性质的核素176Ir,由氦喷嘴快速带传输系统将反应产物传送到低本底区进行测量．经过实验
【机 构】
：
中国科学院近代物理研究所,中国科学院近代物理研究所,中国科学院近代物理研究所,中国科学院近代物理研究所,中国科学院近代物理研究所,中国科学院近代物理研究所,中国科学院近代物理研究所,中国科学院近代物理
论文部分内容阅读
在210MeV的束流能量下,利用重离子熔合蒸发反应146Nd(35Cl,5nγ)176Ir产生具有β+／EC衰变性质的核素176Ir,由氦喷嘴快速带传输系统将反应产物传送到低本底区进行测量．经过实验数据的离线处理分析,对早先发表的176Ir衰变γ跃迁进行确认的同时又发现了3个新能级和10条新的γ射线, 丰富了176Os核的低位激发态能级纲图．并根据典型γ射线的衰变时间谱建议了176Ir核的一个长寿命的低自旋同核异能态．
The 146Nd (35Cl, 5nγ) 176Ir produced a 176Ir with β + / EC decay properties by a heavy ion fusion evaporation reaction at a beam energy of 210MeV, which was delivered by a helium nozzle fast-band transfer system to the low background zone Make measurements. After the offline processing and analysis of the experimental data, the newly published 176Ir decay γ transitions were confirmed, at the same time, three new energy levels and 10 new γ-rays were discovered, which enriched the low-level excited states of 176Os nuclei. Based on the decay time spectrum of typical γ-rays, a long-lived low-spin isokinetic isomer of 176Ir nuclei was proposed.
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