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William Yeong Liang LING (林永樑), Shuai LIU (刘帅), Xiangyang LIU (刘向阳), Zhiwen WU (武志文), Ningfei WANG (王宁飞). Volumetric Langmuir probe mapping of a transient pulsed plasma thruster plume[J]. Plasma Science and Technology, 2020, 22(9): 94010-094010. DOI: 10.1088/2058-6272/ab90e2
Citation: William Yeong Liang LING (林永樑), Shuai LIU (刘帅), Xiangyang LIU (刘向阳), Zhiwen WU (武志文), Ningfei WANG (王宁飞). Volumetric Langmuir probe mapping of a transient pulsed plasma thruster plume[J]. Plasma Science and Technology, 2020, 22(9): 94010-094010. DOI: 10.1088/2058-6272/ab90e2

Volumetric Langmuir probe mapping of a transient pulsed plasma thruster plume

  • The triple Langmuir probe enables measurements of the transient plasma parameters over time at a point of interest. We demonstrate how these measurements can be easily combined to obtain a visualization of the overall plasma behavior of a pulsed plasma thruster. Through this, it is possible to identify features in the expansion of the plasma such as the canting angle of the plume. We also identified the early arrival of a negatively canted low-density plasma plume. The 2D profiles also reveal data that would otherwise be obscured by other planes in optical measurements.
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