| 摘要 |
PURPOSE:To make it possible to detect securely the leakage of X-rays, electron beams, cathode rays, ultroviolet rays, radiant rays, etc., by mixing a metal activator, fluorescing by being irradiated with rays, into the parent body of ion crystal. CONSTITUTION:Into the parent of ion crystal made of a halide of alkali metal or alkaline earth metal, that of a zinc group element, etc., a required amount of a metal activator, such as rare earth elements, Mn, copper, gold, silver, and Tl, is mixed and ion crystal optical fiber is manufactured in the drawing-up method, etc. This activator is excited with X-rays, electron beams, cathode rays, ultraviolet rays, radiant rays, etc., to fluoresce. This optical fiber is used for a sensor for the safety device of a photochemical reactor, that for leakage at the circumference of a nuclear reactor, etc. |
