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Visible Spectroscopy and Magnetic Field Profile Measurments of Pulsed Power Diodes

机译:脉冲功率二极管的可见光谱和磁场轮廓测量

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Optical spectroscopic measurements in pulsed power diodes have been performed to estimate plasma parameters and local magnetic fields. Initial experiments on the Self-Magnetic Pinch diode at the RITS-6 accelerator (5-11 MV, 100-200 kA) at Sandia Labs used lens coupled fiber arrays that were imaged onto a high resolution gated spectrometer. Local magnetic fields (3-4 T) were estimated from Zeeman split C IV lines, which yielded current profiles at the anode surface. Additionally, electron density profiles were estimated from the Stark widths of several ion and neutral spectral lines. More recent experiments have focused on using similar fiber arrays coupled to streak spectrometers tom image MITL regions on the Z machine in order to better understand current loss due plasma formation in the A-K gap.
机译:已经在脉冲功率二极管中进行了光谱测量,以估计等离子体参数和局部磁场。 Sandia Labs在RITS-6加速器(5-11 MV,100-200 kA)上的自磁夹二极管的初步实验使用了透镜耦合光纤阵列,该阵列成像在高分辨率选通光谱仪上。根据Zeeman分裂C IV线估算局部磁场(3-4 T),从而在阳极表面产生电流分布。此外,根据几条离子和中性谱线的斯塔克宽度估算了电子密度分布。最近的实验集中在使用类似的光纤阵列耦合到条纹光谱仪上,以使Z机上的MITL区域成像,以便更好地了解由于A-K间隙中的等离子体形成而引起的电流损耗。

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