Optical properties in fibers during irradiation in a fission reactor

Tatsuo Shikama; T. Kakuta; M. Narui; T. Sagawa; H. Kayano

doi:10.1016/0022-3115(94)00688-1

Optical properties in fibers during irradiation in a fission reactor

Tatsuo Shikama, T. Kakuta, M. Narui, T. Sagawa, H. Kayano

Institute for Materials Research (IMR)

Research output: Contribution to journal › Article › peer-review

31 Citations (Scopus)

Abstract

The effects of irradiation on the performance of optical fibers with silica core were examined during irradiation in a fission reactor, JMTR. The fibers performed well in terms of their radiation characteristics up to the fast neutron fluence of 1.06 × 10²⁰ n/cm² and the gamma ray dose rate of 4.3 × 10⁹ Gy at 460 K. Three kinds of optical radiation induced by the reactor irradiation were observed during irradiation. Origins of these optical radiations were studied. Broad optical radiations centered at 0.45 and 0.73 μm are thought to be Cherenkov radiation. The sharp optical radiation at 1.27 μm was thought to be generated in the silica core by the gamma-ray irradiations in the reactor.

Original language	English
Pages (from-to)	324-327
Number of pages	4
Journal	Journal of Nuclear Materials
Volume	225
DOIs	https://doi.org/10.1016/0022-3115(94)00688-1
Publication status	Published - 1995 Jan 1

ASJC Scopus subject areas

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

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abstract = "The effects of irradiation on the performance of optical fibers with silica core were examined during irradiation in a fission reactor, JMTR. The fibers performed well in terms of their radiation characteristics up to the fast neutron fluence of 1.06 × 1020 n/cm2 and the gamma ray dose rate of 4.3 × 109 Gy at 460 K. Three kinds of optical radiation induced by the reactor irradiation were observed during irradiation. Origins of these optical radiations were studied. Broad optical radiations centered at 0.45 and 0.73 μm are thought to be Cherenkov radiation. The sharp optical radiation at 1.27 μm was thought to be generated in the silica core by the gamma-ray irradiations in the reactor.",

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AU - Shikama, Tatsuo

AU - Kakuta, T.

AU - Narui, M.

AU - Sagawa, T.

AU - Kayano, H.

PY - 1995/1/1

Y1 - 1995/1/1

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AB - The effects of irradiation on the performance of optical fibers with silica core were examined during irradiation in a fission reactor, JMTR. The fibers performed well in terms of their radiation characteristics up to the fast neutron fluence of 1.06 × 1020 n/cm2 and the gamma ray dose rate of 4.3 × 109 Gy at 460 K. Three kinds of optical radiation induced by the reactor irradiation were observed during irradiation. Origins of these optical radiations were studied. Broad optical radiations centered at 0.45 and 0.73 μm are thought to be Cherenkov radiation. The sharp optical radiation at 1.27 μm was thought to be generated in the silica core by the gamma-ray irradiations in the reactor.

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Optical properties in fibers during irradiation in a fission reactor

Abstract

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