SEDL / STP / STP1325-EB / STP13921S

In-Situ Radio-Luminescence from Sapphires Under Fission Reactor Irradiation

Shikama, T
Associate Professor, Research Associate, Professor, Institute for Materials Research, Tohoku University, Oarai, Ibarakiken,

Kakuta, T
Researcher, Tokai Research Establishment, Japan Atomic Energy Research Institute, Ibarakiken,

Narui, M
Associate Professor, Research Associate, Professor, Institute for Materials Research, Tohoku University, Oarai, Ibarakiken,

Sagawa, T
Technical Staff, Oarai Research Establishment, Japan Atomic Energy Research Institute, Ibarakiken,

Jensen, BFH
Doctor Student, Professor, Department of Engineering, University of Tokyo, Tokyo,

Nakazawa, S
Doctor Student, Professor, Department of Engineering, University of Tokyo, Tokyo,

Kayano, H
Associate Professor, Research Associate, Professor, Institute for Materials Research, Tohoku University, Oarai, Ibarakiken,

Pages: 10    Published: Jan 1999

Download this paper for $25 PDF (224K)          View License Agreement
Abstract

Radio-luminescence from the sapphire was detected in-situ under the reactor irradiation using the silica core optical fiber. The radio-luminescence peaks at 420, 690, and 860nm, and broad band in 700–1200nm were identified. However, these radio-luminescence peaks and band became obscure as the reactor power went up, due to the increase of the specimen temperatures and to the interference of the strong radio-luminescence from the silica core optical fiber itself. The effect of the applied electric field on the radio-luminescence was studied. Change was observed due to the electric field but it was very small. Further study and a better-controlled experiments will be needed to clarify the effect.