Hydrogen and Deuterium Analysis Using Laser-Induced Plasma Spectroscopy
Hydrogen and Deuterium Analysis Using Laser-Induced Plasma Spectroscopy
批准号:
17550077
负责人:
KAGAWA Kiichiro
金额:
$2.05万
依托单位:
依托单位国家:
日本
项目类别:
Grant-in-Aid for Scientific Research (C)
财政年份:
2005
资助国家:
日本
项目状态:
已结题
起止时间:
2005 至 2006
中文摘要
激光诱导等离子体光谱分析(LIPS)作为一种快速的定量分析工具,已经在许多领域得到了广泛的应用。然而,由于固体材料中的氢是普通的,所以很少有关于固体材料中杂质氢的分析工作的报道。在1atm条件下,氢发射(Hα)经历了严重的谱线展宽和发射效率的急剧下降。在这项研究中,我们证明了通过控制激光等离子体产生中的一些条件,如环境气体压力、气体种类和激光聚焦,可以实现H分析。作为氢分析的应用之一,我们对核电站工业中非常重要的问题--Zicaloy样品进行了氢分析。1)减压氢分析发现,氦在10Torr附近的低压为固体中的氢分析提供了良好的条件。本文对含氢200ppm~4300ppm的Zicaloy样品进行了高灵敏度和高精度的分析,采用了相当极端的离焦条件(f=200m透镜为-45 mm),获得了良好的线性校准曲线,检出限约为50ppm。为此,激光脉冲被有意聚焦在样品表面以上10 mm处,以诱导气体击穿等离子体,在那里产生He原子,并从样品表面激光烧蚀。我们还证明了通过抑制H-α和D-α的光谱展宽,可以同时进行H和D的分析,但峰值波长漂移仅为0.18 nm。
英文摘要
Laser-induced plasma spectroscopy (LIPS) has been expanded in many fields as a rapid quantitative analytical tool. However, little work has been reported on the analysis of hydrogen as impurity in solid materials because ordinary. LIPS is conducted at 1 atm, under which condition hydrogen emission (Hα) undergoes a severe line broadening and drastic diminishing in emission efficiency. In this study we have demonstrated that H analysis can be realized by controlling some conditions in the laser plasma production, such as ambient gas pressure, gas kind and laser focusing. As one of the application of H analysis, we have made H analysis in Zicaloy sample, which is very important issue in the nuclear power station industry.1) H analysis at reduced pressureIt has been found that helium low pressure around 10 Torr offers a good condition for H analysis in solids. High sensitive and high precision analysis was demonstrated on zicaloy samples (containing H in the range from 200ppm and 4300ppm) by employing rather extreme defocusing condition (-45mm for f=200m lens) for YAG laser irradiation(140mJ), presenting a good linear calibration curve with a detection limit of about 50ppm.2)H analysis in He gas at 1 atmAnother excitation technique was developed; namely, excitation through He metastable-state(He*). For this purpose, YAG laser pulse was intentionally focused at 10mm above the sample surface so as to induce a gas breakdown plasma, where He*atoms are produced, together with the laser ablation from the sample surface. It was confirmed that a good linear calibration curve is available even in this case with a detection limit of around 100ppm.3) Deuterium analysisWe have also proved that H and D(deuterium) analysis can be made simultaneously by suppressing the spectra broadening of Hα and Dα., nevertheless the peak wavelength shift is only 0.18nm..
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Sub-Target Effect in Film Analysis Using TEA CO2 Laser-Induced Plasma
使用 TEA CO2 激光诱导等离子体进行薄膜分析中的子目标效应
DOI:
--
发表时间:
2007
期刊:
Current Applied Physics Vol. 7
影响因子:
--
作者:
[Y.I.Lee, N.Idris, K.Kagawa et al.]
通讯作者:
K.Kagawa et al.
DOI:
10.1007/s00340-005-1973-4
发表时间:
2006-01-01
期刊:
APPLIED PHYSICS B-LASERS AND OPTICS
影响因子:
2.1
作者:
[Abdulmadjid, SN, Suliyanti, MM, Tjia, MO]
通讯作者:
Tjia, MO
Preliminary Analysis of C and H in a "Sagiran" Fossil Using Laser-Induced Plasma at Reduced Pressure
使用减压激光诱导等离子体对“Sagiran”化石中的 C 和 H 进行初步分析
DOI:
--
发表时间:
2005
期刊:
J. Appl. Phys. Vol. 98
影响因子:
--
作者:
[M.M.Suliyanti, H.Kurniawan, T.Maruyama, K.Kagawa]
通讯作者:
K.Kagawa
Some Notes on the Role of Meta-Stable Exci ted Sate of Helium Atom in Laser-Induced Helium Gas Breakdown Spectroscopy.
关于氦原子亚稳态激发态在激光诱导氦气击穿光谱中的作用的一些注释。
DOI:
--
发表时间:
2007
期刊:
Appl. Phys. B Vol.86
影响因子:
--
作者:
[M.Rami, K.Kagawa, H.Kurniawan et al.]
通讯作者:
H.Kurniawan et al.
Hydrogen Analysis in Solid Samples Using Laser Induced Helium Plasma at Atmospheric Pressure.
在大气压下使用激光诱导氦等离子体分析固体样品中的氢。
DOI:
--
发表时间:
2005
期刊:
J. Appl. Phys. Vol.98
影响因子:
--
作者:
[M.Pardede, K.Kagawa N.Idris, H.kUrniawan, T.Maruyama]
通讯作者:
T.Maruyama
共 16 条
Development of frictionless equipments for teaching mechanics using fine plastic beads
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批准号:20500751
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项目类别:Grant-in-Aid for Scientific Research (C)
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资助金额:$2.25万
-
财政年份:2008
-
负责人:KAGAWA Kiichiro
-
依托单位:
Experiment of Artificial Snow Crystals for Science Education
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批准号:14580187
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项目类别:Grant-in-Aid for Scientific Research (C)
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资助金额:$0.77万
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财政年份:2002
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负责人:KAGAWA Kiichiro
-
依托单位:
High precision Refractive-index Measurement Using Rainbow Method and Its Application to Water Analysis
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批准号:09650045
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项目类别:Grant-in-Aid for Scientific Research (C)
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资助金额:$2.18万
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财政年份:1997
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负责人:KAGAWA Kiichiro
-
依托单位:
海外基金