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Title: Design of Zeeman spectroscopy experiment with magnetized silicon plasma generated in the laboratory

Journal Article · · High Energy Density Physics
ORCiD logo [1];  [1];  [2];  [3];  [1];  [1];  [1];  [1];  [4];  [4];  [1]
  1. Osaka Univ. (Japan)
  2. Univ. de Provence, Marseille (France). Lab. PIIM
  3. Gwangju Inst. of Science and Technology (GIST) (South Korea)
  4. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

A laboratory measurement of the Zeeman effect in the soft X-ray range can be realized using a laser-produced strong magnetic field and laser-driven magnetic field compression. In this measurement, a pair of laser-driven capacitor-coil targets produces a spatially uniform seed magnetic field of several hundred Tesla, and a low-density SiO2 foam is soaked in the magnetic field. Additionally, a strongly magnetized high-energy-density SiO2 plasma is then produced by laser-driven compressions of both the foam and the magnetic field. According to a numerical hydrodynamic simulation, a >10 kT peak magnetic field is achievable with a 100 T seed magnetic field produced by the GEKKO-XII laser facility at Osaka University, Japan. The soft X-ray spectrum is calculated using the MASCB-PPPB code with plasma parameters obtained with the FLASH code. Zeeman splitting of the transition line from lithium-like Si ions of 1.2 eV is observed at 95.4 eV emission peak energy, which is observable even considering the Stark broadening and the spectral resolution of the spectrometer.

Research Organization:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA); JSPS KAKENHI
Grant/Contract Number:
AC52-07NA27344; 15KK0163; 16H02245; 16K13918
OSTI ID:
1769107
Report Number(s):
LLNL-JRNL-817444; 1027274; TRN: US2206712
Journal Information:
High Energy Density Physics, Vol. 33, Issue na; ISSN 1574-1818
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English

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