Gomez M R, Hansen S B, Peterson K J, Bliss D E, Carlson A L, Lamppa D C, Schroen D G, Rochau G A
Sandia National Laboratories, Albuquerque, New Mexico 87185, USA.
General Atomics, San Diego, California 92121, USA.
Rev Sci Instrum. 2014 Nov;85(11):11E609. doi: 10.1063/1.4891304.
Sandia's Z Machine uses its high current to magnetically implode targets relevant to inertial confinement fusion. Since target performance is highly dependent on the applied drive field, measuring magnetic field at the target is essential for accurate simulations. Recently, the magnetic field at the target was measured through splitting of the sodium 3s-3p doublet at 5890 and 5896 Å. Spectroscopic dopants were applied to the exterior of the target, and spectral lines were observed in absorption. Magnetic fields in excess of 200 T were measured, corresponding to drive currents of approximately 5 MA early in the pulse.
桑迪亚国家实验室的Z机器利用其强电流对与惯性约束聚变相关的靶丸进行磁内爆。由于靶丸性能高度依赖于所施加的驱动场，因此在靶丸处测量磁场对于精确模拟至关重要。最近，通过对位于5890 Å和5896 Å的钠3s - 3p双线分裂进行测量，得到了靶丸处的磁场。光谱掺杂剂被施加到靶丸外部，并观察到吸收光谱线。测量到的磁场超过200 T，对应于脉冲早期约5 MA的驱动电流。
