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Characterization of a hybrid target multi-keV x-ray source by a multi-parameter statistical analysis of titanium K-shell emission

机译:通过钛K壳发射的多参数统计分析表征混合目标多KeV X射线源

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摘要

We have studied the titanium K-shell emission spectra from multi-keV x-ray source experiments with hybrid targets on the OMEGA laser facility. Using the collisional-radiative TRANSPEC code, dedicated to K-shell spectroscopy, we reproduced the main features of the detailed spectra measured with the time-resolved MSPEC spectrometer. We have developed a general method to infer the N-e, T-e and T-i characteristics of the target plasma from the spectral analysis (ratio of integrated Lyman-alpha to Helium-alpha in-band emission and the peak amplitude of individual line ratios) of the multi-keV x-ray emission. These thermodynamic conditions are compared to those calculated independently by the radiation-hydrodynamics transport code FCI2. (C) 2015 Elsevier B.V. All rights reserved.
机译:我们已经研究了在OMEGA激光设备上使用混合靶材进行多keV x射线源实验得到的钛K壳发射光谱。使用专用于K壳光谱的碰撞辐射TRANSPEC代码,我们再现了使用时间分辨MSPEC光谱仪测量的详细光谱的主要特征。我们已经开发了一种通用方法,可以从多光谱的光谱分析(Lyman-α与He-α的积分带内发射比和各个谱线比的峰值幅度)推断目标等离子体的Ne,Te和Ti特性-keV X射线发射。将这些热力学条件与通过辐射流体力学传输代码FCI2独立计算的条件进行比较。 (C)2015 Elsevier B.V.保留所有权利。

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