@article{oai:nagoya.repo.nii.ac.jp:00027058, author = {Sasoh, Akihiro and Kasuga, Hayato and Nakagawa, Yoshiya and Matsuba, Toshihiro and Ichihara, Daisuke and Iwakawa, Akira}, journal = {Acta Astronautica}, month = {Nov}, note = {The thrust characteristics of electrostatic-magnetic hybrid acceleration have been obtained in the central–cathode electrostatic thruster (CC-EST), which has a diverging magnetic nozzle and injects propellant through an annular slit on the inner surface of a ring anode. The electrostatic and electromagnetic contributions are evaluated by fitting experimentally measured thrust characteristics to formulae derived for steady-state, quasi-neutral plasma flows. The thrust is composed of two terms: one corresponds to the electrostatic acceleration interfaced by the magnetized electrons, the other to electromagnetic acceleration yielding a kinetic energy of swirl motion that is converted to that of axial motion in the diverging magnetic nozzle. The thrust performances of three thrusters having an axisymmetric shape with a hollow cathode on the centre axis and a diverging, applied magnetic field are examined. While only an electromagnetic thrust component is obtained in the conventional applied-field magneto-plasma-dynamics thruster, the other two, CC–ESTs, exhibit comparable, electrostatic and electromagnetic thrust components, and thus improve thrust performance., ファイル公開:2020-11-01}, pages = {137--145}, title = {Electrostatic-magnetic-hybrid thrust generation in central–cathode electrostatic thruster (CC–EST)}, volume = {152}, year = {2018} }