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贺子阳, 吴晓光, 蒋伟, 李聪博, 周振翔, 孙琪, 郭明伟, 吴鸿毅, 李智焕, 樊瑞睿, 唐靖宇, 李天晓, 胡守扬, 智宇, 宋金兴, 李沛玉, 栾广源, 张奇玮, 王朝辉, 陈雄军, 胡世鹏, 钟健, 甘林, 张智程, 张苏雅拉吐, 王德鑫, 孙保华, 庞萱, 郑云, 李笑梅, 阮锡超, 华辉. 178Hf同核异能态激发与退激路径研究[J]. 原子核物理评论, 2024, 41(1): 256-262. DOI: 10.11804/NuclPhysRev.41.2023CNPC27
引用本文: 贺子阳, 吴晓光, 蒋伟, 李聪博, 周振翔, 孙琪, 郭明伟, 吴鸿毅, 李智焕, 樊瑞睿, 唐靖宇, 李天晓, 胡守扬, 智宇, 宋金兴, 李沛玉, 栾广源, 张奇玮, 王朝辉, 陈雄军, 胡世鹏, 钟健, 甘林, 张智程, 张苏雅拉吐, 王德鑫, 孙保华, 庞萱, 郑云, 李笑梅, 阮锡超, 华辉. 178Hf同核异能态激发与退激路径研究[J]. 原子核物理评论, 2024, 41(1): 256-262. DOI: 10.11804/NuclPhysRev.41.2023CNPC27
Ziyang HE, Xiaoguang WU, Wei JIANG, Congbo LI, Zhenxiang ZHOU, Qi SUN, Mingwei GUO, Hongyi WU, Zhihuan LI, Ruirui FAN, Jingyu TANG, Tianxiao LI, Shouyang HU, Yu ZHI, Jinxing SONG, Peiyu LI, Guangyuan LUAN, Qiwei ZHANG, Zhaohui WANG, Xiongjun CHEN, Shipeng HU, Jian ZHONG, Lin GAN, Zhicheng ZHANG, Suyalatu ZHANG, Dexin WANG, Baohua SUN, Xuan PANG, Yun ZHENG, Xiaomei LI, Xichao RUAN, Hui HUA. Study on the Excitation and Deexcitation Paths of 178Hf Isomer[J]. Nuclear Physics Review, 2024, 41(1): 256-262. DOI: 10.11804/NuclPhysRev.41.2023CNPC27
Citation: Ziyang HE, Xiaoguang WU, Wei JIANG, Congbo LI, Zhenxiang ZHOU, Qi SUN, Mingwei GUO, Hongyi WU, Zhihuan LI, Ruirui FAN, Jingyu TANG, Tianxiao LI, Shouyang HU, Yu ZHI, Jinxing SONG, Peiyu LI, Guangyuan LUAN, Qiwei ZHANG, Zhaohui WANG, Xiongjun CHEN, Shipeng HU, Jian ZHONG, Lin GAN, Zhicheng ZHANG, Suyalatu ZHANG, Dexin WANG, Baohua SUN, Xuan PANG, Yun ZHENG, Xiaomei LI, Xichao RUAN, Hui HUA. Study on the Excitation and Deexcitation Paths of 178Hf Isomer[J]. Nuclear Physics Review, 2024, 41(1): 256-262. DOI: 10.11804/NuclPhysRev.41.2023CNPC27
  • 摘要: 具有长寿命高激发态的同核异能素在国家战略安全和储能领域有重要的意义,其关键技术在于掌握人工诱发同核异能素快速退激到基态。近些年该项技术研究遇到了瓶颈,需从原子核结构研究的角度出发,通过对同核异能素的形成、受激激发和退激机制的深入研究,突破遇到的瓶颈,进而掌握诱发同核异能素快速退激到基态的关键技术。本工作是在实验技术方面利用白光中子束流轰击Hf靶,创新性地建立了由氟化钡探测器阵列GTAF-Ⅱ进行全能量测量与高纯锗探测器进行特征γ射线测量,再结合白光中子飞行时间测量组成的三重符合测量系统,通过对实验数据的分析发现了178Hf同核异能态激发到过渡能级并快速释放的迹象。

     

    Abstract: Isomer with long lifetime and high excitation energy is of great significance in the fields of national strategic security and energy storage. Mastering the method of inducing isomer to decay is the key technology. However, this technology has got into trouble in recent years. For mastering the method of inducing isomer to decay, it is beneficial to start the research on the formation, excitation and de-excitation mechanism of isomer from the view of atomic nucleus structure. In this work, we used a white light neutron beam to bombard the Hf target in terms of experimental technology, and innovatively established a triple coincidence measurement system consisting of a barium fluoride detector array GTAF-Ⅱ for full energy measurement, a high-purity germanium detector for characteristic γ-ray measurement, and a white light neutron time-of-flight measurement. Through the analysis of experimental data, we found the sign of the 178Hf isomeric state exciting to the transition level and releasing rapidly.

     

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