Proton deflectometry of a capacitor coil target along two axes
Proton deflectometry of a capacitor coil target along two axes
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DOI：
10.1017/hpl.2020.9
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发表时间：
2020-01-01
影响因子：
4.8
通讯作者：
Woolsey, N. C.
中科院分区：
文献类型：
--
作者：
Bradford, P.;Read, M. P.;Woolsey, N. C.
激光驱动电流的一个发展中的应用是产生皮秒-纳秒持续时间的磁场，其幅度超过B = 10 T。单回路和螺旋线圈靶可以引导激光驱动的放电电流沿着导线产生空间均匀的毫米级准静态磁场。在这里，我们提出了质子偏转横跨两个轴的单环线圈的直径范围从1到2毫米。与质子跟踪模拟的比较表明，测量的磁场是线圈中的千安培电流和线圈目标周围分布的电荷的结果。使用这个双轴平台的质子偏转，强大的测量可以在一个电容线圈目标的磁场的演变。
A developing application of laser-driven currents is the generation of magnetic fields of picosecond-nanosecond duration with magnitudes exceeding B = 10 T. 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.