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首页> 外文期刊>Plasma physics and controlled fusion >Fast z-pinches as dense plasma, intense x-ray sources for plasma physics and fusion applications
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Fast z-pinches as dense plasma, intense x-ray sources for plasma physics and fusion applications

机译：快速Z夹可作为致密等离子体，强X射线源用于等离子体物理和聚变应用

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As a result of advances in fast pulsed-power technology and cylindrical load fabrication, the Z pulsed-power accelerator at Sandia National Laboratories drives currents approaching 20 MA with a rise time of approximately 100 ns through cylindrically-symmetric loads (typically a cylindrical array consisting of a few hundred wires) to produce plasma densities in excess of 10(21) ions cc(-1), x-ray output energies approaching 2 MJ, radiation pulses as short as 4 ns and peak x-ray powers as high as 280 +/- 40 TW. More than 15% of the stored electrical energy in the Z pulsed-power accelerator is converted into x-rays. The plasma pressures at peak compression are several TPa with electron temperatures that can exceed 3 keW at containment magnetic fields exceeding 1000 T. Depending on the atomic number and composition of the imploding plasma, these z-pinches can be tailored to produce intense sources of thermal x-rays, keV x-rays or neutrons. Although applications of these x-ray sources have included research in radiation material interaction, equations of state, opacity, astrophysics and x-ray lasers, the principal focus of the present research is to use them for indirect-drive inertial confinement fusion (ICF). [References: 30]
机译：由于快速脉冲功率技术和圆柱负载制造技术的进步，桑迪亚国家实验室的Z脉冲功率加速器通过圆柱对称负载（通常为圆柱阵列），驱动电流接近20 MA，上升时间约为100 ns。几百根导线）产生超过10（21）个离子cc（-1）的等离子体密度，x射线输出能量接近2 MJ，辐射脉冲短至4 ns，峰值x射线功率高达280 +/- 40 TW。 Z脉冲功率加速器中超过15％的存储电能被转换为X射线。峰值压缩时的等离子压力为几TPa，在安全磁场超过1000 T的情况下，电子温度可能超过3 keW。根据内爆等离子体的原子序数和组成，可以定制这些Z夹以产生强烈的热源X射线，keV X射线或中子。尽管这些X射线源的应用包括辐射材料相互作用，状态方程，不透明度，天体物理学和X射线激光的研究，但本研究的主要重点是将其用于间接驱动惯性约束聚变（ICF） 。 [参考：30]

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