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<專題討論>2020/9/17(四)14:10綜合大樓2樓48218教室演講 : 河森榮一郎 教授(成功大學電漿所)

張貼者:2020年9月13日 下午7:38Dabby Lu
講題: Introduction to laboratory magnetized plasma experiment
摘要: Research directions and ongoing projects of the MPX laboratory in ISAPS are presented in this talk. One of our primary directions is to pursuit fundamental physics associated with plasmas (many-body systems). A topic exemplifying this direction is study on information thermodynamics of plasma waves. The theory predicts the possibility of extraction of coherent work from the environment (e.g., turbulence) by manipulation of information (entropy) without energy input. Ongoing researches associated with this direction in the MPX lab include “verification of entropy cascade in phase space in gyrokinetic turbulence”, “supercontinuum (coherent broad band waves) generation of Langmuir waves”, and “transition between drift wave turbulence and solitary drift waves (SDWs)”. “Investigation of electrostatic potential shocks in plasmas” belongs to this direction as well. The other direction is development of application technology of plasma science. Examples are, study on nuclear fusion plasmas, plasma source development and establishment of novel diagnostic techniques. Figure 1 shows one of the recent results obtained by our students in this direction, two-dimensional density profile measured with the use of a new type of microwave interferometer and a reconstruction technique. This density profile shows an image of SDWs generated in the MPX plasma device.
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Dabby Lu,
2020年9月13日 下午7:38
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