TY - JOUR
T1 - Axial momentum lost to a lateral wall of a helicon plasma source
AU - Takahashi, Kazunori
AU - Chiba, Aiki
AU - Komuro, Atsushi
AU - Ando, Akira
N1 - Publisher Copyright:
© 2015 American Physical Society.
PY - 2015/5/12
Y1 - 2015/5/12
N2 - Momentum exerted to a lateral wall of a helicon plasma source is individually measured for argon, krypton, and xenon gases. A significant loss of the axial plasma momentum to the lateral wall, which has been assumed to be negligible, is experimentally identified when an axially asymmetric density profile is formed in the source. This indicates that the radially lost ions deliver not only the radial momentum but also the axial momentum to the lateral wall. The formation of the axial asymmetry causing the momentum loss is interpreted with competition between the magnetic field and neutral depletion effects.
AB - Momentum exerted to a lateral wall of a helicon plasma source is individually measured for argon, krypton, and xenon gases. A significant loss of the axial plasma momentum to the lateral wall, which has been assumed to be negligible, is experimentally identified when an axially asymmetric density profile is formed in the source. This indicates that the radially lost ions deliver not only the radial momentum but also the axial momentum to the lateral wall. The formation of the axial asymmetry causing the momentum loss is interpreted with competition between the magnetic field and neutral depletion effects.
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U2 - 10.1103/PhysRevLett.114.195001
DO - 10.1103/PhysRevLett.114.195001
M3 - Article
AN - SCOPUS:84930508072
SN - 0031-9007
VL - 114
JO - Physical Review Letters
JF - Physical Review Letters
IS - 19
M1 - 195001
ER -