Spectral diagnostic of a resonantly laser created non-Debye plasma

J. Valognes, J. Bardet, C. Dimarcq, L. Giry
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引用次数: 2

Abstract

The time history of electronic density and temperature is a main point of the study of a resonantly laser created (weakly non-ideal) plasma. In order to carry out this study, with the aim of explaining the unusual variations of the emitted 4D→3P and 4F→3P Na(I) lines intensity, the authors perform a Star calculation (including ion-dynamic effect) and use as a diagnostic a comparison between experimental and theoretical profiles. Good agreement is obtained for most of the records. As for the Na 3P-level population, its time history is close to those already obtained in other studies, with different experimental conditions but for comparable densities L'evolution de la densite electronique et de la temperature est un point essentiel de l'etude d'un plasma (faiblement non ideal) obtenu par resonance laser. Afin d'effectuer cette etude, dans le but d'expliquer les variations inhabituelles observees, de l'intensite des raies 4D→3P et 4F→3P de Na(I), les auteurs utilisent un calcul de perturbation Stark (tenant en compte d'un effet dynamique des ions) et basent leur diagnostic sur la comparaison entre les profils experimentaux et theoriques. Un bon accord est obtenu dans la majorite des cas. Quand a la population du niveau 3P, son evolution est a rapprocher de celle deja mise en evidence par d'autres travaux, dans des conditions experimentales differentes mais pour des densites proches
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共振激光产生非德拜等离子体的光谱诊断
电子密度和温度的时程是研究共振激光产生的(弱非理想)等离子体的一个重点。为了进行这项研究,以解释发射的4D→3P和4F→3P Na(I)线强度的不寻常变化为目的,作者进行了Star计算(包括离子动力学效应),并将实验和理论资料之间的比较作为诊断。大多数记录的一致性很好。对于Na - 3p能级的居群,它的时间历史与其他研究中已经得到的时间历史接近,在不同的实验条件下,对于密度相当的L'evolution de la dense electronique和de la temperature est un point本质de L 'etude d'un plasma(失效非理想)obtenu par共振激光器。在d' efferette研究中,d' efferette研究中,d' explierle研究中,d' explierle研究中,d' intenterdes 4D→3P et 4F→3P de Na(I), d' auteres利用计算摄动Stark (tenant en完成d' efferdynamicdes),以及基本的lelediagnostic sur比较中心,实验和理论的轮廓。在多数情况下,碳协议是最容易达成的。从种群的角度来看,进化是细胞分化的一种途径,在不同的条件下,实验证明了不同的主要因素和密度途径
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