Toward quantitative deuterium analysis with laser-induced breakdown spectroscopy using atmospheric-pressure helium gas
Toward quantitative deuterium analysis with laser-induced breakdown spectroscopy using atmospheric-pressure helium gas
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DOI：
10.1063/1.3282801
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发表时间：
2010-01-15
影响因子：
3.2
通讯作者：
Tjia, May On
中科院分区：
文献类型：
--
作者：
Hedwig, Rinda;Lie, Zener Sukra;Tjia, May On
通过探索合适的实验条件和特殊的样品清洗技术，在大气压氦气氛下，对掺钕钇铝石榴石激光诱导击穿光谱（LIBS）进行了氘定量分析的实验研究。结果表明，实现的D和H的发射线之间的全分辨率从Cr 13 caloy-4样品，这是所需的定量分析的先决条件。此外，具有零截距的线性校准线获得的氘的发射强度，从一些用预定浓度的氘掺杂的镍铬合金样品。通过设置激光束的+4 mm散焦位置、6 μ s检测选通时间和用于检测的等离子体的7 mm成像位置来获得结果，其与重复激光清洁样品的特殊程序相结合。本研究为LIBS技术用于氘的定量分析提供了基础。
An experimental study has been carried out for the development of quantitative deuterium analysis using the neodymium doped yttrium aluminum garnet laser-induced breakdown spectroscopy (LIBS) with atmospheric pressure surrounding He gas by exploring the appropriate experimental condition and special sample cleaning technique. The result demonstrates the achievement of a full resolution between the D and H emission lines from zircaloy-4 samples, which is prerequisite for the desired quantitative analysis. Further, a linear calibration line with zero intercept was obtained for the emission intensity of deuterium from a number of zircaloy samples doped with predetermined concentrations of deuterium. The result is obtained by setting a +4 mm defocusing position for the laser beam, 6 mu s detection gating time, and 7 mm imaging position of the plasma for the detection, which is combined with a special procedure of repeated laser cleaning of the samples. This study has thus provided the basis for the development of practical quantitative deuterium analysis by LIBS.