Turbulent Fluctuations in Collisional Plasmas

这一少数民族机构研究改进(RIMI)项目将使用新的实验室技术来确定离子密度波动中的标准湍流等离子体参数与自发辐射和受激发射中相应参数之间的关系。研究人员将使用电流饱和离子探测器、碰撞诱导的光学发射和激光诱导的荧光，在几个压力下检查Ar等离子体。数据收集将包括波动谱、相关谱、双相干谱和对表征混沌指数的评估。这种对碰撞等离子体中湍流涨落的全面研究将大大提高一个以少数人为主的机构的研究能力。首席调查员具有进行研究的长期经验和必要的专业知识。从事这一项目的教师和学生将有机会研究模式-模式耦合机制及其在充分发展的湍流等离子体中的可能作用。

This Research Improvement in Minority Institutions (RIMI) project will use novel laboratory techniques to determine the relationship between the standard turbulent plasma parameters as found in ion density fluctuations and the corresponding parameters in the spontaneous and stimulated emissions. Investigators will examine argon plasmas at several pressures, using current- saturated ion probes, collision-induced optical emissions and laser-induced fluorescence. Data collection will include fluctuation spectra, correlation profiles, bicoherent spectra, and an evaluation of the characterizing chaotic indices. This comprehensive study of turbulent fluctuations in collisional plasmas will significantly increase the research capability of a predominantly minority institution. The principal investigator has long-term experience and the necessary expertise to do the research. Faculty and students working on this project will have opportunities to examine mode-mode coupling mechanisms and their probable role in fully developed turbulent plasmas.