A simple model for estimating a magnetic field in laser-driven coils

Journal Article · Mon Sep 26 00:00:00 EDT 2016 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4963763· OSTI ID:1332509

Fiksel, Gennady ^[1]; Fox, William  ^[2]; Gao, Lan ^[2]; Ji, Hantao ^[3]

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1. Univ. of Michigan, Ann Arbor, MI (United States)
2. Princeton Plasma Physics Lab. (PPPL), Princeton Univ., Princeton, NJ (United States)
3. Princeton Univ., NJ (United States)

Magnetic field generation by laser-driven coils is a promising way of magnetizing plasma in laboratory high-energy-density plasma experiments. A typical configuration consists of two electrodes—one electrode is irradiated with a high-intensity laser beam and another electrode collects charged particles from the expanding plasma. The two electrodes are separated by a narrow gap forming a capacitor-like configuration and are connected with a conducting wire-coil. The charge-separation in the expanding plasma builds up a potential difference between the electrodes that drives the electrical current in the coil. A magnetic field of tens to hundreds of Teslas generated inside the coil has been reported. This paper presents a simple model that estimates the magnetic field using simple assumptions. Lastly, the results are compared with the published experimental data.

• Research Organization: Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
• Sponsoring Organization: USDOE
• Grant/Contract Number: NA0002205
• OSTI ID: 1332509
• Journal Information: Applied Physics Letters, Vol. 109, Issue 13; ISSN 0003-6951
• Publisher: American Institute of Physics (AIP)
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY