| Autor: |
Kong, Defeng, Xu, Shirui, Shou, Yinren, Gao, Ying, Mei, Zhusong, Pan, Zhuo, Liu, Zhipeng, Cao, Zhengxuan, Liang, Yulan, Peng, Ziyang, Wang, Pengjie, Luo, Di, Li, Yang, Li, Zhi, Xie, Huasheng, Zhang, Guoqiang, Luo, Wen, Zhao, Jiarui, Chen, Shiyou, Geng, Yixing, Zhao, Yanying, Xue, Jianming, Yan, Xueqing, Ma, Wenjun |
| Rok vydání: |
2022 |
| Předmět: |
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| Druh dokumentu: |
Working Paper |
| DOI: |
10.1155/2022/5733475 |
| Popis: |
Here we report the generation of MeV alpha-particles from H-11B fusion initiated by laser-accelerated boron ions. Boron ions with maximum energy of 6MeV and fluence of 10^9/MeV/sr@5MeV were generated from 60-nm-thick self-supporting boron nanofoils irradiated by 1J femtosecond pulses at an intensity of 10^19W/cm^2. By bombarding secondary hydrogenous targets with the boron ions, 3*10^5/sr alpha-particles from H-11B fusion were registered, which is consistent with the theoretical yield calculated from the measured boron energy spectra. Our results demonstrate an alternative way toward ultrashort MeV alpha-particle sources employing compact femtosecond lasers. The ion acceleration and product measurement scheme are referential for the studies on the ion stopping power and cross-section of the H-11B reaction in solid or plasma. |
| Databáze: |
arXiv |
| Externí odkaz: |
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