Accurate measurement of magnetic fields produced by laser-driven coil targets via proton radiography
The spatiotemporal evolution of electromagnetic fields generated by a relativistic-intensity laser pulse irradiating a capacitor–coil target was diagnosed using proton radiography. In the experiments, both an electromagnetic pulse (EMP) propagating at approximately the speed of light immediately after the laser–target interaction and a magnetic field generated by the coil current were observed. The results demonstrate a clear spatiotemporal separation between the proton signals induced by the EMP and those induced by the coil magnetic field. This separation enables accurate measurement of the magnetic field generated by the coil current after the EMP has subsided.
Authors
- Na Xie (ORCID: https://orcid.org/0000-0001-5690-4824)
- Shukai He (ORCID: https://orcid.org/0000-0003-1136-4590)
- Jiamin Yang (ORCID: https://orcid.org/0000-0002-9784-0000)
- Liang Guo (ORCID: https://orcid.org/0000-0002-2914-3748)
- Yuqiu Gu (ORCID: https://orcid.org/0000-0001-6979-4556)
- Weimin Zhou (ORCID: https://orcid.org/0000-0001-5474-7511)
- Longfei Jing (ORCID: https://orcid.org/0000-0003-0112-2336)
- Min Lv (ORCID: https://orcid.org/0000-0002-0466-4328)
- Lianqiang Shan (ORCID: https://orcid.org/0000-0002-7092-3789)
- Longyu Kuang
- Dong Sheng Yang (ORCID: https://orcid.org/0000-0003-4245-7204)
- Weiwu Wang (ORCID: https://orcid.org/0000-0003-1318-2686)
- Zhiwei Lin (ORCID: https://orcid.org/0009-0002-8499-1050)
- Hang Li (ORCID: https://orcid.org/0000-0002-3694-4463)
- Chao Tian (ORCID: https://orcid.org/0000-0003-4238-4690)
- Feng Zhang (ORCID: https://orcid.org/0000-0002-3986-491X)
- Lei Yang (ORCID: https://orcid.org/0000-0001-8860-843X)
- Qi Zhang (ORCID: https://orcid.org/0009-0002-6062-1610)
- Zongqiang Yuan
- Kainan Zhou (ORCID: https://orcid.org/0009-0002-8777-9952)
- Feng Lu
Institutions
- Peking University (CN)
- China Academy of Engineering Physics (CN)
- Shanghai Laser Technology Institute (CN)
- Institute of Plasma Physics (CN)
Publication Details
- Journal
- Physics of Plasmas
- Published
- 2025-12-01
- DOI
- https://doi.org/10.1063/5.0289276
- Citations
- 1
- Primary Topic
- Space Technology and Applications
- Type
- article
- Field-Weighted Citation Impact
- 0.73