Plasma Flow Measurements with Mach Probe

1998 ◽  
Vol 67 (11) ◽  
pp. 3774-3778 ◽  
Author(s):  
Yoshimitsu Amagishi ◽  
Tetsuya Miyazaki
Keyword(s):  
Plasma Flow ◽  
Flow Measurements ◽  
Mach Probe

Plasma Flow Measurements in Linear Divertor Simulator MAP-II Using Mach Probe and Directional Langmuir Probe

2004 ◽  
Vol 44 (7-8) ◽  
pp. 656-661 ◽  
Author(s):  
S. Kado ◽  
T. Shikama ◽  
S. Kajita ◽  
T. Oishi ◽  
S. Tanaka
Keyword(s):  
Plasma Flow ◽  
Langmuir Probe ◽  
Flow Measurements ◽  
Mach Probe

Evaluation of Mach probe characteristics and measurement of high-Mach-number plasma flow

2006 ◽  
Vol 506-507 ◽  
pp. 692-696 ◽  
Author(s):  
Akira Ando ◽  
Toshiaki Watanabe ◽  
Takashi Watanabe ◽  
Ryuichi Sato ◽  
Kenji Harata ◽  
...  
Keyword(s):  
Mach Number ◽  
Plasma Flow ◽  
High Mach Number ◽  
High Mach ◽  
Mach Probe

Plasma flow measurements in improved modes on STOR-M and CASTOR tokamaks

2010 ◽  
Vol 165 (2) ◽  
pp. 138-164
Author(s):  
G. S. Germaine ◽  
C. Xiao ◽  
A. Hirose
Keyword(s):  
Plasma Flow ◽  
Flow Measurements

scholarly journals Plasma flow measurements along the presheath of a magnetized plasma

1989 ◽  
Vol 1 (11) ◽  
pp. 2229-2238 ◽  
Author(s):  
K‐S. Chung ◽  
I. H. Hutchinson ◽  
B. LaBombard ◽  
R. W. Conn
Keyword(s):  
Plasma Flow ◽  
Magnetized Plasma ◽  
Flow Measurements

Rotating Mach Probe for Ion Flow Measurements on the CASTOR Tokamak

2002 ◽  
Vol 42 (1) ◽  
pp. 99-108 ◽  
Author(s):  
K. Dyabilin ◽  
M. Hron ◽  
J. Stöckel ◽  
F. Žáček
Keyword(s):  
Flow Measurements ◽  
Ion Flow ◽  
Castor Tokamak ◽  
Mach Probe

scholarly journals Characteristics of Plasma Flow for Microwave Plasma Assisted Aerosol Deposition

Nanomaterials ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 1705
Author(s):  
In-Je Kang ◽  
Chang-Hyun Cho ◽  
Hyonu Chang ◽  
Soo-Ouk Jang ◽  
Hyun-Jae Park ◽  
...  
Keyword(s):  
Flow Velocity ◽  
Plasma Flow ◽  
Microwave Plasma ◽  
Plasma Source ◽  
Aerosol Deposition ◽  
Calibration Factor ◽  
Novel Structure ◽  
Mach Probe ◽  
Optimized Conditions ◽  
Variation Simulation

To validate the possibility of the developed microwave plasma source with a novel structure for plasma aerosol deposition, the characteristics of the plasma flow velocity generated from the microwave plasma source were investigated by a Mach probe with pressure variation. Simulation with the turbulent model was introduced to deduce calibration factor of the Mach probe and to compare experimental measurements for analyses of collisional plasma conditions. The results show calibration factor does not seem to be a constant parameter and highly dependent on the collision parameter. The measured plasma flow velocity, which witnessed fluctuations produced by a shock flow, was between 400 and 700 m/s. The optimized conditions for microwave plasma assisted aerosol deposition were derived by the results obtained from analyses of the parameters of microwave plasma jet. Under the optimized conditions, Y2O3 coatings deposited on an aluminum substrate were investigated using scanning electron microscope. The results presented in this study show the microwave plasma assisted aerosol deposition with the developed microwave plasma source is highly feasible for thick films with >50 μm.

scholarly journals Preliminary Results of Plasma Flow Measurements in a 2 KW Segmented Hall Thruster

2003 ◽  
Author(s):  
Y. Raitses ◽  
D. Staack ◽  
A. Dunaevsky ◽  
L. Dorf ◽  
N.J. Fisch
Keyword(s):  
Plasma Flow ◽  
Hall Thruster ◽  
Flow Measurements ◽  
Preliminary Results

scholarly journals High ionisation fraction plasmas in a low temperature, multidipole cusp plasma

2018 ◽  
Vol 84 (3) ◽  
Author(s):  
V. Désangles ◽  
J. Milhone ◽  
C. Cooper ◽  
D. B. Weisberg ◽  
M. D. Nornberg ◽  
...  
Keyword(s):  
Density Profile ◽  
Plasma Flow ◽  
Radial Profile ◽  
Input Power ◽  
Impact Excitation ◽  
Electron Impact Excitation ◽  
Neutral Density ◽  
Flow Measurements ◽  
Dc Discharge ◽  
Mhd Stability

The depletion of neutral helium atoms has been studied in an unmagnetised spherical plasma created by DC discharge in a multidipole confinement field. Knowing the neutral density profile is critical to predicting the equilibrium flow of such plasmas. A model of the emissivity due to electron-impact excitation of neutral atoms in the plasma has been derived and used to fit radiance measurements of several neutral transitions to extract the radial profile of neutral density for plasmas of varying temperature and density. We report a depletion of the core neutral density varying between negligible levels to 80 % of the edge neutral density depending on the input power and fuelling. The corresponding ionisation fraction varies between 30–80 % in the plasma core. A simple neutral diffusion model is sufficient to describe the shape of neutral density profile implied by the radiance measurements. We have used the measurements to include a drag force due to neutral charge-exchange collisions in simulations of driven plasma flow. The simulation predicts a better fit to Mach probe flow measurements when this neutral drag is accounted for. This work shows that accounting for a realistic neutral profile is important to predict the plasma flow geometry and its magnetohydrodynamics (MHD) stability.

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