Zobrazeno 1 - 10
of 26
pro vyhledávání: '"George-Cristian Potrivitu"'
Autor:
George-Cristian Potrivitu, S. Xu
Publikováno v:
Acta Astronautica. 191:293-316
Hollow cathodes are used as thermionic emitters in a variety of electric propulsion devices, such as the Hall thruster. This work studies the derivation and discusses the results of a phenomenological (zero-dimensional) plasma model for a hollow cath
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::199d6c944aaabadd8965340a19aa32ff
https://doi.org/10.1016/j.actaastro.2021.11.005
https://doi.org/10.1016/j.actaastro.2021.11.005
Autor:
George-Cristian Potrivitu, Yufei Sun, Muhammad Wisnuh Aggriawan bin Rohaizat, Oleksii Cherkun, Luxiang Xu, Shiyong Huang, Shuyan Xu
Publikováno v:
Aerospace, Vol 7, Iss 6, p 67 (2020)
The age of space electric propulsion arrived and found the space exploration endeavors at a paradigm shift in the context of new space. Mega-constellations of small satellites on low-Earth orbit (LEO) are proposed by many emerging commercial actors.
Externí odkaz:
https://doaj.org/article/af5a0ac9f3854b3886d6b023c2fc3f86
Autor:
George-Cristian Potrivitu, Shuyan Xu
Publikováno v:
CEAS Space Journal.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9bfb0902c387ed185e9b3ef11af7e96a
https://doi.org/10.1007/s12567-022-00478-5
https://doi.org/10.1007/s12567-022-00478-5
Autor:
George-Cristian Potrivitu, Shuyan Xu
When operated with a Hall thruster, either centrally or externally mounted, cathode discharge occurs in a magnetic field environment. Therefore, it is important to assess the influence of the magnetic field on the standalone operation of a hollow cat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a0f89633e3cf637da18de0a4bf055b1a
https://doi.org/10.21203/rs.3.rs-1806238/v1
https://doi.org/10.21203/rs.3.rs-1806238/v1
Autor:
George-Cristian Potrivitu, Shuyan Xu
Publikováno v:
Journal of Electric Propulsion. 1
Plasma instabilities in the plume of hollow cathodes have been extensively researched in particular for high-current operation. The rise of plume mode ionization-like instability leads to a degradation of cathode’s performance along with the emerge
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d9d2c0d194b2230e123cdb58521b0e42
https://doi.org/10.1007/s44205-022-00005-y
https://doi.org/10.1007/s44205-022-00005-y
Autor:
George-Cristian Potrivitu, Shuyan Xu
Publikováno v:
2020 IEEE International Conference on Plasma Science (ICOPS).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::37144e08c499efe378b5a4c581761b8b
https://doi.org/10.1109/icops37625.2020.9717813
https://doi.org/10.1109/icops37625.2020.9717813
Autor:
Stéphane Mazouffre, Laurent Garrigues, Sedina Tsikata, George-Cristian Potrivitu, Gaétan Sary, Benjamin Vincent
Publikováno v:
Journal of Physics D: Applied Physics
Journal of Physics D: Applied Physics, IOP Publishing, 2020, 53, pp.415202. ⟨10.1088/1361-6463/ab9974⟩
Journal of Physics D: Applied Physics, IOP Publishing, 2020, 53, pp.415202. ⟨10.1088/1361-6463/ab9974⟩
International audience; Emissive cathodes serve a key function as the electron source for Hall plasma thrusters. Development of reliable numerical models for their operation and information on plasma behavior requires the use of sensitive and accurat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::10cc9939b5bf1d0c2c4d6bbacd94329d
https://hal.archives-ouvertes.fr/hal-02864028
https://hal.archives-ouvertes.fr/hal-02864028