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Development of laser remote analysis for nuclear fuel materials, 3-3; Emission characteristics in microwave-assisted laser-induced breakdown spectroscopy

Khumaeni, A.; Akaoka, Katsuaki ; Maruyama, Yoichiro; Miyabe, Masabumi   ; Wakaida, Ikuo  

Laser-induced breakdown spectroscopy has been employed for the analysis of nuclear materials. However, this method has several drawbacks including low sensitivity. To increase the sensitivity, we have developed a novel method by utilizing microwave-assisted laser-induced breakdown spectroscopy. In order to improve the ability for practical application, the emission characteristics of microwave-assisted laser plasma such as plasma lifetime, plasma temperature, and atomic distributions in the plasma region are investigated. And by using this method, the enhancement up to approximately 200 times will be demonstrated in Ca oxide sample.

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