Study of a prototype fiber optic nuclear radiation sensor

摘要

Abstract: In this paper an exploratory study of fiber optic nuclear radiation sensor focus on nuclear log in oil industry is presented. The principle and structure of a prototype fiber optic nuclear radiation sensor (mainly measuring gamma ray) based on the principle of radiation-induced loss are discussed. Its great advantages over conventional nuclear radiation sensors are described as well. The experiment results about radiation-induced losses of different doped concentration of PbO in sensitive fibers are presented and analyzed. The experiment results and analyses show that this kind of fiber optic nuclear radiation sensor has a vast range of prospects not only in nuclear log but in other nuclear radiation detecting application fields. !3