Radar scattering width effects by coating 90Sr/90Y layers on cylindrical targets  

作　　者：Xiang Wang Jia-Zhu Zhu Wei Liu Chi Cui Rui-Li Zhang Fei Zhou Tao Tang Run-Sheng Huang 

机构地区：[1]School of Physics, Nanjing University, Nanjing 210093,China

出　　处：《Nuclear Science and Techniques》2017年第4期66-73,共8页核技术（英文）

基　　金：supported by the 863 Program through the Ministry of Science and Technology(No.2006AA03Z458);the National Natural Science Foundation of China(Nos.10904061 and 50977042)

摘　　要：In this paper,the ^(90)Sr/^(90)Y coating effects on scattering width(SW) of cylindrical conductor targets are investigated.The electron density distribution of plasma around cylindrical targets of different radiuses is simulated under different radioactivities in normal or oblique incidence.In normal incidence,the SWs are examined as functions of frequency and scattering angle;while in oblique incidence,the SW is inspected as a function of incident angle at the frequency of 1.5 GHz.The results obtained are compared with those from an ideal perfect electric conductor(PEC) cylinder.It is demonstrated that the SW decreases over a wide frequency range in the back scattering region by coating a ^(90)Sr/^(90)Y layer on the cylindrical target.Moreover,the reduction in bi-static SW amplitude can reach 3-20 dB,when the incident angle is smaller than 30° at 1.5 GHz.It is a significant improvement in the stealth effect.In this paper, the ⁹⁰Sr/⁹⁰Y coating effects on scattering width (SW) of cylindrical conductor targets are investigated. The electron density distribution of plasma around cylindrical targets of different radiuses is simulated under different radioactivities in normal or oblique incidence. In normal incidence, the SWs are examined as functions of frequency and scattering angle; while in oblique incidence, the SW is inspected as a function of incident angle at the frequency of 1.5 GHz. The results obtained are compared with those from an ideal perfect electric conductor (PEC) cylinder. It is demonstrated that the SW decreases over a wide frequency range in the back scattering region by coating a ⁹⁰Sr/⁹⁰Y layer on the cylindrical target. Moreover, the reduction in bi-static SW amplitude can reach 3-20 dB, when the incident angle is smaller than 30° at 1.5 GHz. It is a significant improvement in the stealth effect.

关 键 词：RADIOACTIVITY Plasma CYLINDER Scattering WIDTH (SW) 

分 类 号：O53[理学—等离子体物理] TJ01[理学—物理] V218[兵器科学与技术—兵器发射理论与技术]