Removal of Co-deposited Layers by Excimer Lasers

スポンサーリンク

概要

• 論文の詳細を見る

• The JT-60 co-deposited layers with the thickness of nearly 60 μm were clearly and flatly removed by 10 pulses’ KrF irradiation at the fluence of 13.3 J/cm2. The effective absorption coefficient and ablation threshold of the TFTR co-deposited layers for KrF laser were 0.4 μm−1 and 4.2 J/cm2, which were a bit larger than those of the JT-60 co-deposited layers (0.3 μm−1 and 2.3 J/cm2) for the same laser. In addition, hydrogen (tritium) was found to be released in the form of hydrogen molecules, and the combination of excimer laser and mass spectrometer or tritium monitor could be a promising technique for analyzing the depth profiles in the co-deposited layers and the substrate near the interface. Furthermore, the formation of cones on the JT-60 co-deposited layers due to local surface melting was observed at the fluence of 0.8 J/cm2 for KrF laser irradiation, whereas strong melting was determined to be the mechanism of the ablative removal of the JT-60 co-deposited layers at fluences greater than the ablation threshold of 2.3 J/cm2.

• 一般社団法人 日本原子力学会の論文
• 2003-12-25

著者

• Nishi Masataka

  Tritium Engineering Laboratory Japan Atomic Energy Research Institute

• Nishi Masataka

  Tritium Engineering Laboratory Department Of Fusion Engineering Research Japan Atomic Energy Researc

• Shu Wataru

  Tritium Engineering Laboratory Japan Atomic Energy Research Institute

• KAWAKUBO Yukio

  Tritium Engineering Laboratory, Japan Atomic Energy Research Institute

• LUO Guang-Nan

  Tritium Engineering Laboratory, Japan Atomic Energy Research Institute

• Luo Guang-nan

  Tritium Engineering Laboratory Japan Atomic Energy Research Institute

• Kawakubo Yukio

  Tritium Engineering Laboratory Japan Atomic Energy Research Institute

関連論文

• Simulation of Tritium Behavior after Intended Tritium Release in Ventilated Room
• A Steady-state Simulation Model of Gas Separation System by Hollow-filament Type Membrane Module
• Durability of Irradiated Polymers in Solid-Polymer-Electrolyte Water Electrolyzer
• Tritium Decontamination from Co-deposited Layer on Tungsten Substrate by Ultra Violet Lamp and Laser
• Application of Pressure Swing Adsorption to Water Detritiation Process
• Numerical Estimation Method of the Hydrogen Isotope Inventory in the Hydrogen Isotope Separation System for Fusion Reactor
• Adsorption Isotherms of Hydrogen Isotopes on Molecular Sieves 5A at Low Temperature
• Removal of Co-deposited Layers by Excimer Lasers

スポンサーリンク