TIME-RESOLVED EMISSION FROM LASER-ABLATED URANIUM

被引：25

作者：

STOFFELS, E ^{[1
]}

VANDEWEIJER, P ^{[1
]}

VANDERMULLEN, J ^{[1
]}

机构：

[1] PHILIPS RES LABS,5600 JA EINDHOVEN,NETHERLANDS

来源：

SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY | 1991年 / 46卷 / 11期

关键词：

D O I：

10.1016/0584-8547(91)80198-C

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

Time-resolved emission spectra from the plasma, induced by laser ablation of uranium samples have been studied. The dependence of the emission intensity on time is strongly affected by the nature and pressure of the buffer gas. Air and argon have been used in the pressure range 0.002 to 5 mbar. The emission intensity as a function of time displays three maxima. indicating that three different processes within the expanding plasma plume are involved. On basis of the time-resolved spectra we propose a model that explains qualitatively the phenomena that are responsible for this time behaviour.

引用

页码：1459 / 1470

页数：12

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