Cover Image

Saved in:
Bibliographic Details
Main Authors: Wu, Di, Lan, Haoyang, Liu, Jiaxing, Lu, Huangang, Zhang, Jianyao, Lv, Jianfeng, Wu, Xuezhi, Zhang, Hui, Xia, Yadong, He, Qiangyou, Cai, Jie, Ma, Qianyi, Xia, Yuhui, Wang, Zhenan, Wang, Meizhi, Yang, Zhiyan, Xu, Xinlu, Geng, Yixing, Lin, Chen, Ma, Wenjun, Zhao, Yanying, Wang, Haoran, Liu, Fulong, He, Chuangye, Yu, Jinqing, Guo, Bing, Zhang, Guoqiang, Xu, Furong, Wang, Naiyan, Ma, Yugang, Mourou, Gérard, Yan, Xueqing
Format: Preprint
Published: 2024
Subjects:
Nuclear Experiment
Plasma Physics
Online Access:https://arxiv.org/abs/2402.15187
Tags: Add Tag
No Tags, Be the first to tag this record!
Table of Contents:
  • Isomers, ubiquitous populations of relatively long-lived nuclear excited states, play a crucial role in nuclear physics. However, isomers with half-life times of several seconds or less barely had experimental cross section data due to the lack of a suitable measuring method. We report a method of online γ spectroscopy for ultra-short-lived isomers from photonuclear reactions using laser-driven ultra-intense γ-rays. The fastest time resolution can reach sub-ps level with γ-ray intensities >10^{19}/s ({\geqslant} 8 MeV). The ^{115}In(γ, n)^{114m2}In reaction (T_{1/2} = 43.1 ms) was first measured in the high-energy region which shed light on the nuclear structure studies of In element. Simulations showed it would be an efficient way to study ^{229m}Th (T_{1/2} = 7 μs), which is believed to be the next generation of nuclear clock. This work offered a unique way of gaining insight into ultra-short lifetimes and promised an effective way to fill the gap in relevant experimental data.

Similar Items