Express Diagnostic of Intense Laser-driven MeV Radiation Source using Copper Isotopes
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.
Cite
@article{arxiv.2509.06581,
title = {Express Diagnostic of Intense Laser-driven MeV Radiation Source using Copper Isotopes},
author = {Mingzhe Yang and Ziyao wang and Jieru Ren and Wenqing Wei and Benzheng Chen and Bubo Ma and Shizheng Zhang and Lirong Liu and Fangfang Li and Jie Xiong and Hongwei Yue and Zeyu Lai and Wenxuan Li and Dietter. H. H. Hoffmann and Olga N. Rosmej and Parysatis Tavana and Nikolay. E Andreev and Iskander. R. Umarov and Zhigang Deng and Wei Qi and Shaoyi Wang and Quanping Fan and Zongqiang Yuan and Weiwu Wang and Bo Cui and Xiaohui Zhang and Yuchi Wu and Weimin Zhou and Jingqin Su and Rui Cheng and Yongtao Zhao},
journal= {arXiv preprint arXiv:2509.06581},
year = {2025}
}
Comments
9 pages, 5 figures, published to NIMA