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首页> 外文会议>IEEE International Conference on Plasma Science >Plasma Spectral Characteristics of Single Aluminum Wire Electrically Exploded in High Vacuum*
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Plasma Spectral Characteristics of Single Aluminum Wire Electrically Exploded in High Vacuum*

机译：高真空下电爆炸单根铝线的等离子体光谱特性*

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The wire-array Z-pinch has been regarded as one of the most competitive technological approaches to realize the Inertial Confinement Fusion. The exploding-wire stage, which provides the initial conditions for the wire-array Z-pinch, makes a significant influence on the subsequent implosion process. Using a 1-kA nanosecond negative pulse current source, conditions of plasmas generated by current-driven explosions of single aluminum wires in vacuum is studied. The self-emission spectrum of aluminum (Al) wire explosion is investigated using imaging spectrometer with an integrating time of 5 ns. In the spectrum, the characteristic spectral lines of carbon, hydrogen and aluminum ions of different valence states are identified. The electron temperature of the plasma is estimated by the Boltzmann Plot of isolated lines of Al-III with wavelengths of 361.34nm, 415.77nm and 453.98nm. The deconvolution of the waveform of self-emission spectrum is carried out to separate the Doppler Broadening and the Stark Broadening, and then the Stark Broadening is used to calculate electron density. The results show that the electron temperature in the plasma is about 3.47ev and the electron density is about 8.87×10
机译：线阵列Z捏被视为实现惯性约束融合的最具竞争力的技术方法之一。爆炸线阶段为线阵列Z捏提供了初始条件，对随后的内爆过程产生了重大影响。使用一个1kA纳秒的负脉冲电流源，研究了由单根铝线在真空中的电流驱动爆炸产生的等离子体条件。使用积分时间为5 ns的成像光谱仪研究了铝（Al）线爆炸的自发射光谱。在光谱中，鉴定了不同价态的碳，氢和铝离子的特征谱线。等离子体的电子温度通过孤立的Al-III线的Boltzmann图估计，波长为361.34nm，415.77nm和453.98nm。对自发射光谱的波形进行去卷积以分离多普勒展宽和斯塔克展宽，然后使用斯塔克展宽计算电子密度。结果表明，等离子体中的电子温度约为3.47ev，电子密度约为8.87×10

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