Behavior of developed radiation-resistant silica-core optical fibers under fission reactor irradiation

Tatsuo Shikama, Tsunemi Kakuta, Naoki Shamoto, Minoru Narui, Tsutomu Sagawa

Research output: Contribution to journalConference articlepeer-review

35 Citations (Scopus)

Abstract

Oxyhydrate (OH) doped and fluorine (F) doped fused-silica core optical fibers were irradiated in a fission reactor at 370-380 K with a fast neutron flux of about 5×1016 n/m2s and a gamma-ray dose rate of about 500 Gy/s for about 24 days. Oxyhydrate and fluorine dopings improved radiation resistance of optical fibers especially in the visible range. A fluorine doped and heat-treated optical fiber showed best radiation resistance and its radiation induced loss in a visible range is about 20 dB/m after it was irradiated up to a fast neutron fluence of 1×1023 n/m2. Results are implying that fused silica core optical fibers can be used nearer to a burning plasma for plasma diagnostics and remote sensing.

Original languageEnglish
Pages (from-to)179-183
Number of pages5
JournalFusion Engineering and Design
Volume51-52
DOIs
Publication statusPublished - 2000 Nov
Event5th Interantional Symposium on Fusion Technology - Rome, Italy
Duration: 2000 Sep 192000 Sep 24

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Nuclear Energy and Engineering
  • Materials Science(all)
  • Mechanical Engineering

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