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<p>In this research, tungsten thin films on graphite substrates have been investigated as plasma-facing materials and the effects of protons being released from MTPF-2 device have been evaluated. Tungsten coatings were prepared using RF magnetron sputtering method under varying conditions. The coatings were irradiated with protons, and RBS analysis revealed a significant average thickness reduction rate per shot. XRD and GIXRD analyses identified tungsten peaks in the samples, which disappeared after irradiation. SEM images showed a smooth surface before irradiation but revealed significant structural damage post-irradiation. EDX analysis indicated a substantial decrease in tungsten’s weight and atomic percentages after exposure.</p>

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Analysis of proton irradiation effects on thickness and crystal structure of tungsten thin layers

  • 期刊论文

  • 发表日期：

    2025年3月15日

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  • M. Ebrahimi,
  • Hossein Rafi-Kheiri,
  • M. Seyedhabashi

摘要

In this research, tungsten thin films on graphite substrates have been investigated as plasma-facing materials and the effects of protons being released from MTPF-2 device have been evaluated. Tungsten coatings were prepared using RF magnetron sputtering method under varying conditions. The coatings were irradiated with protons, and RBS analysis revealed a significant average thickness reduction rate per shot. XRD and GIXRD analyses identified tungsten peaks in the samples, which disappeared after irradiation. SEM images showed a smooth surface before irradiation but revealed significant structural damage post-irradiation. EDX analysis indicated a substantial decrease in tungsten’s weight and atomic percentages after exposure.