尘埃等离子体离子谐振区的非相干散射谱研究  

A study of Incoherent Scattering Spectra in the Ion Resonance Region of a Dusty Plasma

作　　者：朱帅杰 石雁祥 王彦同 Zhu Shuaijie;Shi Yanxiang;Wang Yantong(College of Electronic Engineering,Yili Normal University,Yining,Xinjiang 835000,China;Laboratory of Signal Detection and Control Technology,Yili Normal University,Yining,Xinjiang 835000,China)

机构地区：[1]伊犁师范大学电子工程学院,新疆伊宁835000 [2]伊犁师范大学信号检测与控制技术重点实验室,新疆伊宁835000

出　　处：《伊犁师范大学学报(自然科学版)》2025年第1期78-83,共6页Journal of Yili Normal University(Natural Science Edition)

基　　金：国家自然科学基金项目(12065023)。

摘　　要：固体火箭推进剂的燃烧可形成纳米级和微米级的Al2O_(3)尘埃颗粒,尘埃颗粒与燃烧区的等离子体混合形成尘埃等离子体区域.用尘埃等离子体非相干散射理论对此处的非相干散射功率谱进行数值模拟,考察电子、离子温度发生扰动时尘埃等离子体离子谐振区非相干散射谱的变化规律,并将引入尘埃项前后的非相干散射功率谱进行对比.研究表明,随着电子、离子温度比值增大,尘埃等离子体非相干散射功率谱离子谐振区的峰值随之变小,谱宽变宽,上下行谱线间间距变大,且加入尘埃后功率谱极值增大较为明显.The combustion of solid rocket propellant can form nanoscale and microscale Al2O_(3)dust particles,which mix with the plasma in the combustion zone to form a dust plasma region.Numerical simulation of the incoherent scattering power spectrum is carried out with the theory of incoherent scattering of dust plasma,to investigate the variation rule of the incoherent scattering spectrum in the ion resonance region of the dust plasma when the electron and ion temperatures are perturbed,and the incoherent scattering power spectrum before and after the introduction of the dust term is compared,which shows that the peak value of the incoherent scattering power spectrum in the ion resonance region of the dust plasma becomes smaller and the spectral width becomes wider with the increase of the ratio of the electron and ion temperatures.It is shown that with the increase of the ratio of electron and ion temperatures,the peak value of the ion resonance region of the non-coherent scattering power spectrum of the dust plasma becomes smaller,the spectral width becomes broader,and the spacing between the upper and lower rows of the spectral lines becomes larger;and the increase of the extreme value of the power spectrum is more obvious after the addition of dust.

关 键 词：尘埃等离子体 非相干散射功率谱 电子温度 离子温度 

分 类 号：O53[理学—等离子体物理]