1979
DOI: 10.1063/1.326036
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The triple-probe method applied to the direct display of plasma parameters in a supersonic flowing continuum plasma

Abstract: The calibration of electrostatic triple-probe voltage and current response in a supersonic continuum plasma has been carried out using a low-pressure shock tube. The electron temperature Te and charge number density Ne are compared to probe voltage and current response, respectively, for a useful range of plasma parameters (1≲Rp/λD≲10, 2≲M≲5, and 7<φ13<35, where Rp is the probe radius, λD is the Debye length, M is the shock Mach number, and φ13 is the nondimensional probe voltage). The dependence… Show more

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Cited by 15 publications
(9 citation statements)
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“…In terms of the experiments, there have been various probe techniques to measure the plasma [16], [17], such as the Langmuir probe [18], the triple probe [19], the hollow probe [20], and the magnetic probe [21]. However, the probe technique has obvious limitations when measuring high-speed, time-varying, or nonreproducible plasma.…”
Section: Introductionmentioning
confidence: 99%
“…In terms of the experiments, there have been various probe techniques to measure the plasma [16], [17], such as the Langmuir probe [18], the triple probe [19], the hollow probe [20], and the magnetic probe [21]. However, the probe technique has obvious limitations when measuring high-speed, time-varying, or nonreproducible plasma.…”
Section: Introductionmentioning
confidence: 99%
“…The limitations in the time resolution do not affect the triple probe technique, proposed by Chen & Sekiguchi (1965), that has been a widely used method for plasma temperature measurements (Ogram, Chang & Hobson 1979; Budaev & Ivanov 1989; Castro & Heller 1996; Gatsonis et al. 2004; Qayyum et al.…”
Section: Introductionmentioning
confidence: 99%
“…Several practical difficulties related to the implementation of a sweeping probe system at high frequencies (∼100 kHz) are exposed in Boedo et al (1999) and Nagashima et al (2015). The limitations in the time resolution do not affect the triple probe technique, proposed by Chen & Sekiguchi (1965), that has been a widely used method for plasma temperature measurements (Ogram, Chang & Hobson 1979;Budaev & Ivanov 1989;Castro & Heller 1996;Gatsonis et al 2004;Qayyum et al 2015). Unlike the Langmuir sweep probe technique, the triple probe technique uses three Langmuir probes.…”
Section: Introductionmentioning
confidence: 99%
“…In the case of supersonic flow, there is no significant effects of the Mach and Reynold numbers on TP measurements. [3] In the transient and turbulent plasma such as tokamak [4][5][6], and reverse field pinch [7,8], TP is often used for the measurement of the electron temperature and density fluctuations. The multi-pin configuration working as TP is suggested to be compensated, since three probes of a TP do not often pick up plasma signal at the same plasma potential, that is, to avoid the local gradients of plasma parameters.…”
Section: Introductionmentioning
confidence: 99%