Express Diagnostic of Intense Laser-driven MeV Radiation Source using Copper Isotopes

Mingzhe Yang; Ziyao wang; Jieru Ren; Wenqing Wei; Benzheng Chen; Bubo Ma; Shizheng Zhang; Lirong Liu; Fangfang Li; Jie Xiong; Hongwei Yue; Zeyu Lai; Wenxuan Li; Dietter. H. H. Hoffmann; Olga N. Rosmej; Parysatis Tavana; Nikolay. E Andreev; Iskander. R. Umarov; Zhigang Deng; Wei Qi; Shaoyi Wang; Quanping Fan; Zongqiang Yuan; Weiwu Wang; Bo Cui; Xiaohui Zhang; Yuchi Wu; Weimin Zhou; Jingqin Su; Rui Cheng; Yongtao Zhao

arXiv · 2509.06581

Express Diagnostic of Intense Laser-driven MeV Radiation Source using Copper Isotopes

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Abstract

We explored the generation and diagnosis of high-brightness MeV bremsstrahlung radiation caused by intense beam of relativistic electrons propagating in a tantalum converter. The intense electron beam was produced through direct laser acceleration mechanism in the interaction of relativistic high-power sub-ps laser pulse with near critical density plasma. We propose to detect the divergence angle and photon fluence of high-brightness and high-energy gamma radiation source based on the nuclear activation method. The radioactive 62^Cu was generated through photonuclear reactions 63^Cu(gamma,n) 62^Cu and the subsequent beta^+ decay of 62^Cu was measured to derive characteristics of the gamma radiation source. This method provides an express approach to diagnose the laser-driven MeV radiation source and a potential efficient way to produce 62^Cu isotopes.

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Mingzhe Yang, Ziyao wang, Jieru Ren, Wenqing Wei, Benzheng Chen, Bubo Ma, Shizheng Zhang, Lirong Liu, Fangfang Li, Jie Xiong, Hongwei Yue, Zeyu Lai, Wenxuan Li, Dietter. H. H. Hoffmann, Olga N. Rosmej, Parysatis Tavana, Nikolay. E Andreev, Iskander. R. Umarov, Zhigang Deng, Wei Qi, Shaoyi Wang, Quanping Fan, Zongqiang Yuan, Weiwu Wang, Bo Cui, Xiaohui Zhang, Yuchi Wu, Weimin Zhou, Jingqin Su, Rui Cheng, Yongtao Zhao. 2025-09-08. Express Diagnostic of Intense Laser-driven MeV Radiation Source using Copper Isotopes. https://arxiv.org/abs/2509.06581

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