Open AccessMeasurement of 60CO gamma radiation induced attenuation in multimode step-index POF at 530 nm
Author(s) -
Stana Kovačević,
Aleksandar Djordjević,
Svetislav Savović,
Jovan S. Bajić,
Z Dragan Stupar,
P Milos Slankamenac,
Milojko Kovačević
Publication year - 2013
Publication title -
nuclear technology and radiation protection
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.31
H-Index - 16
eISSN - 1452-8185
pISSN - 1451-3994
DOI - 10.2298/ntrp1302158k
Subject(s) - attenuation , radiation , ionizing radiation , materials science , multi mode optical fiber , optics , irradiation , gamma ray , radiation dose , attenuation coefficient , radiochemistry , optoelectronics , optical fiber , physics , nuclear physics , nuclear medicine , chemistry , medicine
As optical fibres are used ever more extensively in space applications, nuclear industry, medicine and high-energy physics experiments, it has become essential to investigate the influence of ionizing radiation on their characteristics. In this work, the radiation-induced attenuation at 530 nm is investigated experimentally in step-index multimode polymethyl-methacrylate plastic optical fibres exposed to low dose-rate gamma radiation. Cumulative doses ranged from 50 Gy to 500 Gy. The radiation induced attenuation has been empirically found to obey the power law RIA= aDb, where D is the total radiation dose and a and b are the constants determined by fitting