Behavior of radiation-resistant optical fibers under irradiation in a fission reactor

Tatsuo Shikama, Tsunemi Kakuta, Minora Narui, Tsutomu Sagawa, Naoki Shamoto, Toshimasa Uramoto, Kazuo Sanada, Hideo Kayano

Research output: Contribution to journalArticlepeer-review

23 Citations (Scopus)


Two kinds of optical fibers were irradiated in a fission reactor, JMTR (Japan Materials Testing Reactor), up to a 1.55 × 1019 n/cm2 fast neutron fluence and a 3.3 × 109 Gy ionizing dose at 370 K. Optical transmission spectra were measured in the wavelength range of 450-1750 nm, in situ. Growth of strong optical absorption bands and a peak were observed in the range of wavelength shorter than 750 nm. In the meantime, the fibers showed good radiation-resistance in the range of wavelength larger than 750 nm. Some optical radiation from the fibers was observed. The main cause of the optical radiation is thought to be so-called Cherenkov radiation.

Original languageEnglish
Pages (from-to)421-425
Number of pages5
JournalJournal of Nuclear Materials
Issue numberPART 1
Publication statusPublished - 1994 Jan 1

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Materials Science(all)
  • Nuclear Energy and Engineering


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