Measurement of High-Mach-number Plasma Flows by an Up-down-type Mach Probe

摘要

Mach probe characteristics are evaluated by using a directional Langmuir probe (DLP) in a fast flowing plasma produced by an MPD (Magneto-Plasma-Dynamic) arcjet. The obtained data are compared with Hutchinson's simulation results which are calculated using a particle-in-cell(PIC) code in an unmagnetized plasma. [ I. H. Hutchinson, Plasma Phys. Control. Fusion, 44 (2002) 1953.] The experimentally obtained data are in good agreement with the simulation results in the wide range of M_i (0.4 < M_i < 1.7).