Laser ablation absorption spectroscopy for remote analysis of uranium

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• 作者：M. Miyabe (1)
  M. Oba (1)
  H. Iimura (1)
  K. Akaoka (1)
  Y. Maruyama (1)
  H. Ohba (1)
  M. Tampo (1)
  I. Wakaida (1)
  
• 关键词：Absorption spectroscopy ; Laser ablation ; Uranium ; Plume dynamics ; Isotope analysis
• 刊名：Hyperfine Interactions
• 出版年：2013
• 出版时间：3 - April 2013
• 年：2013
• 卷：216
• 期：1
• 页码：71-77
• 全文大小：509KB
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• 作者单位：M. Miyabe (1)
  M. Oba (1)
  H. Iimura (1)
  K. Akaoka (1)
  Y. Maruyama (1)
  H. Ohba (1)
  M. Tampo (1)
  I. Wakaida (1)
  
  1. Division of Chemistry for Nuclear Engineering, Japan Atomic Energy Agency, Shirane 2-, Tokai-mura, Naka-gun, Ibaraki-ken, 319-1195, Japan
  
• ISSN：1572-9540

文摘

To determine experimental conditions suitable for isotope analysis, we studied the plume dynamics of uranium. A uranium oxide sample was ablated by 2nd harmonic radiation from a Nd:YAG laser at a fluence of 0.5?J/cm2. The temporal evolution of the ablation plume was investigated in 800?Pa helium environment. It was found that the observation at 3-?μs after the ablation at the height of about 2.5?mm are most suited for obtaining higher sensitivity. Using the established conditions, we obtained the limit of detection of the isotope ratio (235U/238U) to be 0.01?%. In addition, the limit of detection of elemental abundance of uranium in uranium glass was also evaluated.