2024-03-29T10:01:52Z
https://nagoya.repo.nii.ac.jp/oai
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2023-01-16T04:12:38Z
320:321:322
Electrostatic ion acceleration across a diverging magnetic field
Ichihara, D.
Uchigashima, A.
Iwakawa, A.
Sasoh, A.
open access
Copyright 2016 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing.The following article appeared in (Applied Physics Letters. v.109, 2016, p.053901) and may be found at (http://dx.doi.org/10.1063/1.4960363).
Electrostatic ion acceleration across a diverging magnetic field, which is generated by a solenoid coil, permanent magnets, and a yoke between an upstream ring anode and a downstream off-axis hollow cathode, is investigated. The cathode is set in an almost magnetic-field-free region surrounded by a cusp. Inside the ring anode, an insulating wall is set to form an annular slit through which the working gas is injected along the anode inner surface, so the ionization of the working gas is enhanced there. By supplying 1.0 Aeq of argon as working gas with a discharge voltage of 225 V, the ion beam energy reached about 60% of a discharge voltage. In spite of this unique combination of electrodes and magnetic field, a large electrical potential drop is formed almost in the axial direction, located slightly upstream of the magnetic-field-free region. The ion beam current almost equals the equivalent working gas flow rate. These ion acceleration characteristics are useful for electric propulsion in space.
AIP Publishing
2016-08-01
eng
journal article
VoR
http://hdl.handle.net/2237/25175
https://nagoya.repo.nii.ac.jp/records/22991
https://doi.org/10.1063/1.4960363
0003-6951
Applied Physics Letters
109
053901
053901
https://nagoya.repo.nii.ac.jp/record/22991/files/1_4960363.pdf
application/pdf
1.3 MB
2017-08-01