Laser and Particle Beams, Volume. 2022, Issue 3, 5733475(2022)
Alpha-Particle Generation from H-11B Fusion Initiated by Laser-Accelerated Boron Ions
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 6 MeV and fluence of 109/MeV/sr@5 MeV were generated from 60 nm-thick self-supporting boron nanofoils irradiated by 1 J femtosecond pulses at an intensity of 1019 W/cm2. By bombarding secondary hydrogenous targets with the boron ions, 3 × 105/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 demonstrated 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.
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Defeng Kong, Shirui Xu, Yinren Shou, Ying Gao, Zhusong Mei, Zhuo Pan, Zhipeng Liu, Zhengxuan Cao, Yulan Liang, Ziyang Peng, Pengjie Wang, Di Luo, Yang Li, Zhi Li, Huasheng Xie, Guoqiang Zhang, Wen Luo, Jiarui Zhao, Shiyou Chen, Yixing Geng, Yanying Zhao, Jianming Xue, Xueqing Yan, Wenjun Ma. Alpha-Particle Generation from H-11B Fusion Initiated by Laser-Accelerated Boron Ions[J]. Laser and Particle Beams, 2022, 2022(3): 5733475
Category: Research Articles
Received: Apr. 11, 2022
Accepted: Jun. 28, 2022
Published Online: Oct. 12, 2022
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