A developing application of laser-driven currents is the generation of magnetic fields of picosecond-nanosecond duration with magnitudes exceeding. Single-loop and helical coil targets can direct laser-driven discharge currents along wires to generate spatially uniform, quasi-static magnetic fields on the millimetre scale. Here, we present proton deflectometry across two axes of a single-loop coil ranging from 1 to 2 mm in diameter. Comparison with proton tracking simulations shows that measured magnetic fields are the result of kiloampere currents in the coil and electric charges distributed around the coil target. Using this dual-axis platform for proton deflectometry, robust measurements can be made of the evolution of magnetic fields in a capacitor coil target.
CITATION STYLE
Bradford, P., Read, M. P., Ehret, M., Antonelli, L., Khan, M., Booth, N., … Woolsey, N. C. (2020). Proton deflectometry of a capacitor coil target along two axes. High Power Laser Science and Engineering, 8. https://doi.org/10.1017/hpl.2020.9
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