Quantitative Measurement of γ-Ray and e-Beam Effects on Fiber Rayleigh Scattering Coefficient  

作　　者：Yongxiang Chen Jiaqi Li Zinan Wang Andrei Stancălie Daniel Ighigeanu Daniel Negut Dan Sporea Gangding Peng 

机构地区：[1]Key Lab of Optical Fiber Sensing&Communications,University of Electronic Science&Technology of China,Chengdu,611731,China [2]Metrology and Testing Center,China Academy of Engineering Physics(CAEP),Mianyang,621900,China [3]National Institute for Laser,Plasma and Radiation Physics Center for Advanced Laser Technologies,Magurele,RO-077125,Romania [4]“Horia Hulubei”National Institute of Physics and Nuclear Engineering,Măgurele,RO-077125,Romania [5]Photonics and Optical Communications,The University of New South Wales(UNSW),Sydney,2052,Australia

出　　处：《Photonic Sensors》2021年第3期298-304,共7页光子传感器（英文版）

基　　金：This work was supported by the National Natural Science Foundation of China(Grant Nos.41527805 and 61635005);Sichuan Youth Science and Technology Foundation(Grant No.2016JQ0034);the 111 Project(Grant No.B14039);The Romanian authors acknowledge the support of the Romanian Executive Agency for Higher Education,Research,Development and Innovation Funding(Grant No.UEFISCDI),under the contract“Sensor Systems for Secure Operation of Critical Installations”.;G.Peng acknowledges the support by Science and Technology Commission of Shanghai Municipality,China(Grant Nos.SKLSFO2015-01 and 15220721500);by the Hisilicon Innovation Research Program(HIRP)(Grant No.HO2017050001CZ).

摘　　要：The effects of gamma ray(γ-ray)radiation and electron beam(e-beam)radiation on Rayleigh scattering coefficient in single-mode fiber are experimentally investigated.Utilizing an optical time domain reflectometry(OTDR),the power distribution curves of the irradiated fibers are obtained to retrieve the corresponding radiation-induced attenuation(RIA).Based on the backscattering power levels and the measured RIAs,the Rayleigh scattering coefficients can be characterized quantitatively for each fiber sample.Under the given radiation conditions,Rayleigh scattering coefficients have been changed very little while RIAs have been changed significantly.Furthermore,simulations have been implemented to verify the validity of the measured Rayleigh scattering coefficient,including the splicing points.

关 键 词：Gamma ray electron beam Rayleigh scattering radiation-induced attenuation Rayleigh scattering coefficient 

分 类 号：TN253[电子电信—物理电子学]