Matter and Radiation at Extremes (Jul 2016)
Proton radiography of magnetic fields generated with an open-ended coil driven by high power laser pulses
- Guoqian Liao,
- Yutong Li,
- Baojun Zhu,
- Yanfei Li,
- Fang Li,
- Mengchao Li,
- Xuan Wang,
- Zhe Zhang,
- Shukai He,
- Weiwu Wang,
- Feng Lu,
- Faqiang Zhang,
- Lei Yang,
- Kainan Zhou,
- Na Xie,
- Wei Hong,
- Yuqiu Gu,
- Zongqing Zhao,
- Baohan Zhang,
- Jie Zhang
Affiliations
- Guoqian Liao
- National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
- Yutong Li
- National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
- Baojun Zhu
- National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
- Yanfei Li
- National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
- Fang Li
- National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
- Mengchao Li
- National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
- Xuan Wang
- National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
- Zhe Zhang
- National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
- Shukai He
- Science and Technology on Plasma Physics Laboratory, Laser Fusion Research Center, China Academy of Engineering Physics (CAEP), Mianyang 621900, China
- Weiwu Wang
- Science and Technology on Plasma Physics Laboratory, Laser Fusion Research Center, China Academy of Engineering Physics (CAEP), Mianyang 621900, China
- Feng Lu
- Science and Technology on Plasma Physics Laboratory, Laser Fusion Research Center, China Academy of Engineering Physics (CAEP), Mianyang 621900, China
- Faqiang Zhang
- Science and Technology on Plasma Physics Laboratory, Laser Fusion Research Center, China Academy of Engineering Physics (CAEP), Mianyang 621900, China
- Lei Yang
- Science and Technology on Plasma Physics Laboratory, Laser Fusion Research Center, China Academy of Engineering Physics (CAEP), Mianyang 621900, China
- Kainan Zhou
- Science and Technology on Plasma Physics Laboratory, Laser Fusion Research Center, China Academy of Engineering Physics (CAEP), Mianyang 621900, China
- Na Xie
- Science and Technology on Plasma Physics Laboratory, Laser Fusion Research Center, China Academy of Engineering Physics (CAEP), Mianyang 621900, China
- Wei Hong
- Science and Technology on Plasma Physics Laboratory, Laser Fusion Research Center, China Academy of Engineering Physics (CAEP), Mianyang 621900, China
- Yuqiu Gu
- Science and Technology on Plasma Physics Laboratory, Laser Fusion Research Center, China Academy of Engineering Physics (CAEP), Mianyang 621900, China
- Zongqing Zhao
- Science and Technology on Plasma Physics Laboratory, Laser Fusion Research Center, China Academy of Engineering Physics (CAEP), Mianyang 621900, China
- Baohan Zhang
- Science and Technology on Plasma Physics Laboratory, Laser Fusion Research Center, China Academy of Engineering Physics (CAEP), Mianyang 621900, China
- Jie Zhang
- Key Laboratory for Laser Plasmas (MoE) and Department of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, China
- DOI
- https://doi.org/10.1016/j.mre.2016.06.003
- Journal volume & issue
-
Vol. 1,
no. 4
pp. 187 – 191
Abstract
Recently generation of strong magnetic (B) fields has been demonstrated in capacitor coils heated by high power laser pulses [S. Fujioka et al., Sci. Rep. 3, 1170 (2013)]. This paper will present a direct measurement of B field generated with an open-ended coil target driven by a nanosecond laser pulse using ultrafast proton radiography. The radiographs are analyzed with particle-tracing simulations. The B field at the coil center is inferred to be ∼50 T at an irradiance of ∼5 × 1014 W·cm−2. The B field generation is attributed to the background cold electron flow pointing to the laser focal spot, where a target potential is induced due to the escape of energetic electrons.
